fix: Phase 1 critical sim fixes — BUG-01, BUG-02, BUG-05 (#82, #84)

BUG-01: Unknown cards no longer default to "Creature". enrich_card() now
sets type_line="Unknown" for cards without Scryfall data. Added
can_attack_or_block() method to Card — only cards with "Creature" in
type_line can participate in combat. Engine combat uses
can_attack_or_block() instead of is_creature().

BUG-02: Implemented get_legal_moves() and apply_move() in
CommanderGameState with actual game logic — land drops, spell casting
(with mana checking), commander casting from command zone, attack
declarations, and instant-speed responses. Replaces the former
pass-only stubs.

BUG-05: Instants and sorceries now go to graveyard after resolution
instead of being placed on the battlefield as permanents. Added
is_permanent(), is_instant(), is_sorcery() helpers to Card model.

Includes 48 new regression tests covering all three bugs plus
integration tests verifying artifacts/unknown cards never appear in
combat. Fixed existing test_engine.py to match current engine API.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.env.example

@@ -1,4 +1,4 @@
-# Commander AI Lab — Environment Variables
+# Commander AI Lab - Environment Variables
 # Copy this file to .env and fill in your API keys.
 # .env is gitignored and will NOT be committed.
 
@@ -12,4 +12,21 @@ PPLX_API_KEY=your-perplexity-api-key-here
 
 # CORS allowed origins (comma-separated)
 # Default: http://localhost:5173,http://localhost:8080
+# Add your LAN IP if accessing from another machine on your network
 ALLOWED_ORIGINS=http://localhost:5173,http://localhost:8080
+
+# ── Dual-Model AI Brain ─────────────────────────────────────
+# Primary brain: GPT-OSS 20B (turn planner / decision maker)
+BRAIN_API_BASE=http://localhost:11434
+BRAIN_MODEL=gpt-oss:20b
+BRAIN_TEMPERATURE=0.3
+BRAIN_MAX_TOKENS=1024
+BRAIN_TIMEOUT=120.0
+
+# Validator brain: DeepSeek-R1-Distill-Qwen-14B (legality + explanation)
+VALIDATOR_ENABLED=true
+VALIDATOR_API_BASE=http://localhost:11434
+VALIDATOR_MODEL=deepseek-r1:14b
+VALIDATOR_TEMPERATURE=0.0
+VALIDATOR_MAX_TOKENS=2048
+VALIDATOR_TIMEOUT=120.0

coach/config.py

@@ -15,7 +15,7 @@ LAB_ROOT = Path(os.environ.get("COMMANDER_LAB_ROOT", Path(__file__).parent.paren
 # ── Ollama (OpenAI-compatible API) ──────────────────────
 LLM_URL = os.environ.get("LLM_URL", "http://192.168.0.240:11434/v1")
 LLM_MODEL = os.environ.get("LLM_MODEL", "gpt-oss:20b")
-LLM_TIMEOUT = int(os.environ.get("LLM_TIMEOUT", "120"))  # seconds
+LLM_TIMEOUT = int(os.environ.get("LLM_TIMEOUT", "360"))  # seconds
 LLM_MAX_RETRIES = 3
 
 # ── Embeddings ─────────────────────────────────────────────
@@ -28,9 +28,9 @@ DECK_REPORTS_DIR = LAB_ROOT / "deck-reports"
 COACH_SESSIONS_DIR = LAB_ROOT / "coach-sessions"
 
 # ── Prompt Limits ──────────────────────────────────────────
-MAX_PROMPT_TOKENS = 4096
-MAX_CANDIDATES_PER_UNDERPERFORMER = 10
-MAX_UNDERPERFORMERS = 8
+MAX_PROMPT_TOKENS = 2048
+MAX_CANDIDATES_PER_UNDERPERFORMER = 5
+MAX_UNDERPERFORMERS = 4
 UNDERPERFORMER_IMPACT_THRESHOLD = -0.05  # impactScore below this = underperformer
 
 # ── LLM Generation Settings (Coach — Ollama) ──────────────

docs/CLOSED-LOOP-DISTILLATION.md

@@ -0,0 +1,129 @@
+# Closed-Loop Iterative Distillation — Implementation Roadmap
+
+> **Goal:** Create a feedback loop where the PPO self-play agent exports its game decisions
+> as JSONL files, which the supervised training pipeline incorporates alongside Forge
+> heuristic data. The supervised baseline gradually improves as the RL agent discovers
+> better play patterns — the RL agent teaches the supervised model.
+
+---
+
+## Phase 1 — PPO Decision Exporter
+
+**Goal:** PPO self-play writes decisions in the same JSONL format as Forge batch sims.
+
+- [ ] Add a `DecisionExporter` class in `ml/training/self_play.py` that captures each
+      (state, action, reward, game_context) during PPO rollouts
+- [ ] Write to `data/results/ml-decisions-ppo-{batch_id}.jsonl` using the exact same
+      schema as the Forge `DecisionSnapshot` files
+- [ ] Include metadata fields to distinguish PPO-generated data:
+  - `"source": "ppo"`
+  - `"model_version"`
+  - `"reward"`
+  - `"episode_return"`
+- [ ] Only export decisions from **winning** games initially (higher signal-to-noise)
+
+**Files touched:** `ml/training/self_play.py`, new `ml/training/decision_exporter.py`
+
+---
+
+## Phase 2 — Dataset Builder Source Awareness
+
+**Goal:** `dataset_builder.py` can ingest both Forge and PPO decision files with
+configurable mixing.
+
+- [ ] Update `build_dataset()` to scan for both `ml-decisions-sim-*.jsonl` (Forge) and
+      `ml-decisions-ppo-*.jsonl` (PPO) files
+- [ ] Add a `source_weights` config param — e.g., `{"forge": 1.0, "ppo": 0.5}` — to
+      control sampling ratios so PPO data doesn't overwhelm the Forge baseline early on
+- [ ] Add a `min_reward_threshold` filter for PPO data — only include decisions from
+      games above a certain reward score
+- [ ] Tag each sample with its source for downstream analysis
+
+**Files touched:** `ml/data/dataset_builder.py`, `ml/config/scope.py`
+
+---
+
+## Phase 3 — Quality Gate & Validation
+
+**Goal:** Prevent bad PPO data from degrading the supervised model.
+
+- [ ] Add a validation split in `dataset_builder.py` (hold out 10-15% of Forge data as
+      a fixed eval set)
+- [ ] After each supervised training run, evaluate on the held-out Forge set — if
+      accuracy drops below a threshold compared to the previous model, reject the PPO
+      data batch
+- [ ] Track win rate of the PPO agent — only export decisions once the PPO model exceeds
+      a configurable win rate (e.g., >30% in 4-player pods, above the 25% random baseline)
+- [ ] Log data quality metrics: action distribution entropy, reward distribution of
+      exported games
+
+**Files touched:** `ml/training/trainer.py`, `ml/eval/`, new `ml/data/quality_gate.py`
+
+---
+
+## Phase 4 — Distillation Loop Orchestrator
+
+**Goal:** Automate the full cycle: supervised train -> PPO self-play -> export -> retrain.
+
+- [ ] New `ml/training/distillation_loop.py` that orchestrates:
+  1. Supervised train on current dataset (Forge + any existing PPO data)
+  2. Run N episodes of PPO self-play using the new supervised model as starting policy
+  3. Export winning PPO decisions to JSONL
+  4. Quality gate check
+  5. If passed, merge into dataset and go to step 1
+  6. If failed, discard PPO batch, adjust hyperparameters, retry
+- [ ] Add `max_iterations` and `convergence_check` (stop if win rate plateaus across
+      iterations)
+- [ ] Each iteration is a "generation" — tag data and models with generation number
+
+**Files touched:** new `ml/training/distillation_loop.py`, `ml/config/scope.py`
+
+---
+
+## Phase 5 — UI Integration & Monitoring
+
+**Goal:** Expose the distillation loop in the Commander AI Lab web UI.
+
+- [ ] Add a "Distillation" tab or section in `ui/ai-lab.js` showing:
+  - Current generation number
+  - Per-generation win rate trend chart
+  - Data composition pie chart (% Forge vs % PPO per generation)
+  - Start / stop / pause controls for the loop
+- [ ] API endpoints in `routes/ml.py`:
+  - `POST /api/ml/distill/start`
+  - `GET /api/ml/distill/status`
+  - `POST /api/ml/distill/stop`
+- [ ] History of each generation's metrics stored as JSON for the trends view
+
+**Files touched:** `routes/ml.py`, `ui/ai-lab.js`, `ui/ai-lab.css`
+
+---
+
+## Phase 6 — Advanced: ELO Tracking & Model Tournament
+
+**Goal:** Quantify improvement across generations.
+
+- [ ] Pit each generation's model against previous generations and the Forge heuristic
+      in batch sims
+- [ ] Compute ELO ratings per generation
+- [ ] Store in `data/elo_history.json` and visualize in the UI as a line chart
+- [ ] Use ELO delta as a convergence signal — stop the loop when ELO gain per generation
+      drops below a threshold
+
+**Files touched:** new `ml/eval/elo_tracker.py`, `routes/ml.py`, `ui/ai-lab.js`
+
+---
+
+## Priority
+
+| Phase | Priority | Description |
+|-------|----------|-------------|
+| 1     | **Critical** | PPO decision export — foundation for everything |
+| 2     | **Critical** | Dataset builder ingests both sources |
+| 3     | **Critical** | Quality gate prevents model regression |
+| 4     | High     | Automation of the full loop |
+| 5     | Medium   | UI visibility and controls |
+| 6     | Low      | ELO tracking and tournament system |
+
+> **Phases 1-3** are the core — get those working and you have a functional closed loop.
+> **Phase 4** automates it. **Phases 5-6** are polish and observability.

docs/PHASE1-SELF-PLAY-INTEGRATION-CHECKLIST.md

@@ -0,0 +1,93 @@
+# Phase 1 — Self-Play Integration Checklist
+
+> **Issue:** #65 — PPO Decision Exporter  
+> **Ref:** `docs/CLOSED-LOOP-DISTILLATION.md`  
+> **Status:** In Progress
+
+---
+
+## Completed
+
+- [x] Create `ml/training/decision_exporter.py` with `DecisionExporter` class
+- [x] `ExporterConfig` dataclass (output_dir, only_wins, model_version, min_episode_steps)
+- [x] `build_decision_record()` — converts PPO step data into Forge-compatible JSONL format
+- [x] `DecisionExporter.begin_episode()` / `record_step()` / `end_episode()` / `flush()` lifecycle
+- [x] Write to `data/results/ml-decisions-ppo-{batch_id}.jsonl`
+- [x] Include PPO metadata fields: `source`, `model_version`, `reward`, `episode_return`
+- [x] Win-only filtering (only export decisions from winning games)
+- [x] Short-episode gating (`min_episode_steps` threshold)
+- [x] `_macro_action_to_forge_type()` mapping (MacroAction enum → Forge action type strings)
+- [x] Export stats tracking (`stats` property)
+
+---
+
+## Remaining — Integrate into `ml/training/self_play.py`
+
+### Import
+
+- [ ] Add import: `from ml.training.decision_exporter import DecisionExporter`
+
+### Modify `run_self_play_episode()` 
+
+- [ ] Add `exporter: DecisionExporter = None` parameter to function signature
+- [ ] After each `trajectory.append(...)` block (3 locations), add:
+  ```python
+  if exporter is not None:
+      exporter.record_step(
+          game_state_snapshot=prev_snapshot,
+          action_idx=action_idx,
+          reward=reward,
+      )
+  ```
+
+### Modify `collect_rollouts()`
+
+- [ ] Add `exporter: DecisionExporter = None` parameter to function signature
+- [ ] Before each episode, call:
+  ```python
+  if exporter is not None:
+      exporter.begin_episode(agent_seat=agent_seat, playstyle=playstyle)
+  ```
+- [ ] Pass `exporter=exporter` to `run_self_play_episode()`
+- [ ] After outcome tracking, call:
+  ```python
+  if exporter is not None:
+      won = trajectory and trajectory[-1]["done"] and trajectory[-1]["reward"] > 0.5
+      ep_return = sum(s["reward"] for s in trajectory)
+      exporter.end_episode(won=won, episode_return=ep_return)
+  ```
+
+### Commit
+
+- [ ] `git add ml/training/self_play.py`
+- [ ] `git commit -m "feat(ml): integrate DecisionExporter into self-play rollouts (#65)"`
+- [ ] `git push origin main`
+
+---
+
+## Integration Pattern
+
+```
+collect_rollouts(exporter=exporter)
+  └─ for each episode:
+       ├─ exporter.begin_episode(seat, playstyle)
+       ├─ run_self_play_episode(..., exporter=exporter)
+       │    └─ for each step:
+       │         ├─ trajectory.append(step_data)
+       │         └─ exporter.record_step(snapshot, action, reward)
+       └─ exporter.end_episode(won, episode_return)
+  # Caller does: exporter.flush()
+```
+
+---
+
+## Terminal Commands
+
+```bash
+cd commander-ai-lab
+git pull origin main
+# Make edits to ml/training/self_play.py per checklist above
+git add ml/training/self_play.py
+git commit -m "feat(ml): integrate DecisionExporter into self-play rollouts (#65)"
+git push origin main
+```

frontend/.gitignore

@@ -1,24 +0,0 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-pnpm-debug.log*
-lerna-debug.log*
-
-node_modules
-dist
-dist-ssr
-*.local
-
-# Editor directories and files
-.vscode/*
-!.vscode/extensions.json
-.idea
-.DS_Store
-*.suo
-*.ntvs*
-*.njsproj
-*.sln
-*.sw?

frontend/commander-ai-lab-ui/.gitignore

@@ -1,24 +0,0 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-pnpm-debug.log*
-lerna-debug.log*
-
-node_modules
-dist
-dist-ssr
-*.local
-
-# Editor directories and files
-.vscode/*
-!.vscode/extensions.json
-.idea
-.DS_Store
-*.suo
-*.ntvs*
-*.njsproj
-*.sln
-*.sw?

frontend/commander-ai-lab-ui/README.md

@@ -1,73 +0,0 @@
-# React + TypeScript + Vite
-
-This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
-
-Currently, two official plugins are available:
-
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) (or [oxc](https://oxc.rs) when used in [rolldown-vite](https://vite.dev/guide/rolldown)) for Fast Refresh
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
-
-## React Compiler
-
-The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
-
-## Expanding the ESLint configuration
-
-If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
-
-```js
-export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      // Other configs...
-
-      // Remove tseslint.configs.recommended and replace with this
-      tseslint.configs.recommendedTypeChecked,
-      // Alternatively, use this for stricter rules
-      tseslint.configs.strictTypeChecked,
-      // Optionally, add this for stylistic rules
-      tseslint.configs.stylisticTypeChecked,
-
-      // Other configs...
-    ],
-    languageOptions: {
-      parserOptions: {
-        project: ['./tsconfig.node.json', './tsconfig.app.json'],
-        tsconfigRootDir: import.meta.dirname,
-      },
-      // other options...
-    },
-  },
-])
-```
-
-You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
-
-```js
-// eslint.config.js
-import reactX from 'eslint-plugin-react-x'
-import reactDom from 'eslint-plugin-react-dom'
-
-export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      // Other configs...
-      // Enable lint rules for React
-      reactX.configs['recommended-typescript'],
-      // Enable lint rules for React DOM
-      reactDom.configs.recommended,
-    ],
-    languageOptions: {
-      parserOptions: {
-        project: ['./tsconfig.node.json', './tsconfig.app.json'],
-        tsconfigRootDir: import.meta.dirname,
-      },
-      // other options...
-    },
-  },
-])
-```

frontend/commander-ai-lab-ui/eslint.config.js

@@ -1,23 +0,0 @@
-import js from '@eslint/js'
-import globals from 'globals'
-import reactHooks from 'eslint-plugin-react-hooks'
-import reactRefresh from 'eslint-plugin-react-refresh'
-import tseslint from 'typescript-eslint'
-import { defineConfig, globalIgnores } from 'eslint/config'
-
-export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      js.configs.recommended,
-      tseslint.configs.recommended,
-      reactHooks.configs.flat.recommended,
-      reactRefresh.configs.vite,
-    ],
-    languageOptions: {
-      ecmaVersion: 2020,
-      globals: globals.browser,
-    },
-  },
-])

frontend/commander-ai-lab-ui/index.html

@@ -1,13 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>commander-ai-lab-ui</title>
-  </head>
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.tsx"></script>
-  </body>
-</html>

frontend/commander-ai-lab-ui/package.json

@@ -1,35 +0,0 @@
-{
-  "name": "commander-ai-lab-ui",
-  "private": true,
-  "version": "0.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite",
-    "build": "tsc -b && vite build",
-    "lint": "eslint .",
-    "preview": "vite preview"
-  },
-  "dependencies": {
-    "@tailwindcss/vite": "^4.2.1",
-    "lucide-react": "^0.577.0",
-    "react": "^19.2.0",
-    "react-dom": "^19.2.0",
-    "react-router-dom": "^7.13.1",
-    "recharts": "^3.8.0",
-    "tailwindcss": "^4.2.1"
-  },
-  "devDependencies": {
-    "@eslint/js": "^9.39.1",
-    "@types/node": "^24.10.1",
-    "@types/react": "^19.2.7",
-    "@types/react-dom": "^19.2.3",
-    "@vitejs/plugin-react": "^5.1.1",
-    "eslint": "^9.39.1",
-    "eslint-plugin-react-hooks": "^7.0.1",
-    "eslint-plugin-react-refresh": "^0.4.24",
-    "globals": "^16.5.0",
-    "typescript": "~5.9.3",
-    "typescript-eslint": "^8.48.0",
-    "vite": "^7.3.1"
-  }
-}

frontend/commander-ai-lab-ui/src/App.tsx

@@ -1,27 +0,0 @@
-import { BrowserRouter, Routes, Route } from 'react-router-dom'
-import { PageLayout } from './components/layout/PageLayout'
-import { BatchSimPage } from './pages/BatchSimPage'
-import { CollectionPage } from './pages/CollectionPage'
-import { DecksPage } from './pages/DecksPage'
-import { AutoGenPage } from './pages/AutoGenPage'
-import { SimulatorPage } from './pages/SimulatorPage'
-import { CoachPage } from './pages/CoachPage'
-import { TrainingPage } from './pages/TrainingPage'
-
-export default function App() {
-  return (
-    <BrowserRouter>
-      <PageLayout>
-        <Routes>
-          <Route path="/" element={<BatchSimPage />} />
-          <Route path="/collection" element={<CollectionPage />} />
-          <Route path="/decks" element={<DecksPage />} />
-          <Route path="/autogen" element={<AutoGenPage />} />
-          <Route path="/simulator" element={<SimulatorPage />} />
-          <Route path="/coach" element={<CoachPage />} />
-          <Route path="/training" element={<TrainingPage />} />
-        </Routes>
-      </PageLayout>
-    </BrowserRouter>
-  )
-}

frontend/commander-ai-lab-ui/src/api/client.ts

@@ -1,82 +0,0 @@
-// ═══════════════════════════════════════════════════════════
-// Base API client — all fetch calls go through here
-// ═══════════════════════════════════════════════════════════
-
-const BASE = '' // same origin; Vite proxy handles /api in dev
-
-export class ApiError extends Error {
-  status: number
-  constructor(status: number, message: string) {
-    super(message)
-    this.name = 'ApiError'
-    this.status = status
-  }
-}
-
-async function handleResponse<T>(res: Response): Promise<T> {
-  if (!res.ok) {
-    const body = await res.text()
-    let message = `HTTP ${res.status}`
-    try {
-      const json = JSON.parse(body)
-      message = json.detail || json.error || message
-    } catch {
-      if (body) message = body
-    }
-    throw new ApiError(res.status, message)
-  }
-  // Handle 204 No Content
-  if (res.status === 204) return undefined as T
-  return res.json()
-}
-
-export async function get<T>(path: string, params?: Record<string, string | number | boolean | undefined>): Promise<T> {
-  const url = new URL(BASE + path, window.location.origin)
-  if (params) {
-    Object.entries(params).forEach(([k, v]) => {
-      if (v !== undefined && v !== '') url.searchParams.set(k, String(v))
-    })
-  }
-  const res = await fetch(url.toString())
-  return handleResponse<T>(res)
-}
-
-export async function post<T>(path: string, body?: unknown): Promise<T> {
-  const res = await fetch(BASE + path, {
-    method: 'POST',
-    headers: body ? { 'Content-Type': 'application/json' } : {},
-    body: body ? JSON.stringify(body) : undefined,
-  })
-  return handleResponse<T>(res)
-}
-
-export async function postForm<T>(path: string, formData: FormData): Promise<T> {
-  const res = await fetch(BASE + path, {
-    method: 'POST',
-    body: formData,
-  })
-  return handleResponse<T>(res)
-}
-
-export async function put<T>(path: string, body: unknown): Promise<T> {
-  const res = await fetch(BASE + path, {
-    method: 'PUT',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(body),
-  })
-  return handleResponse<T>(res)
-}
-
-export async function patch<T>(path: string, body: unknown): Promise<T> {
-  const res = await fetch(BASE + path, {
-    method: 'PATCH',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(body),
-  })
-  return handleResponse<T>(res)
-}
-
-export async function del<T>(path: string): Promise<T> {
-  const res = await fetch(BASE + path, { method: 'DELETE' })
-  return handleResponse<T>(res)
-}

frontend/commander-ai-lab-ui/src/api/coach.ts

@@ -1,131 +0,0 @@
-import { get, post } from './client'
-import type {
-  CoachStatus, CoachDeck, CoachSession, CoachSessionSummary,
-  CoachChatResponse, CoachApplyResult, CoachCardLikeResult
-} from '../types'
-
-export async function getCoachStatus() {
-  return get<CoachStatus>('/api/coach/status')
-}
-
-export async function getCoachDecks() {
-  return get<CoachDeck[]>('/api/coach/decks')
-}
-
-export async function getCoachDeckReport(deckId: string) {
-  return get<Record<string, unknown>>(`/api/coach/decks/${deckId}/report`)
-}
-
-export async function runCoachSession(deckId: string, goals?: Record<string, unknown>) {
-  return post<CoachSession>(`/api/coach/decks/${deckId}`, goals ? { goals } : undefined)
-}
-
-export async function getCoachSessions(deckId?: string) {
-  const params: Record<string, string> = {}
-  if (deckId) params.deck_id = deckId
-  return get<{ sessions: CoachSessionSummary[] }>('/api/coach/sessions', params)
-}
-
-export async function getCoachSession(sessionId: string) {
-  return get<CoachSession>(`/api/coach/sessions/${sessionId}`)
-}
-
-export async function downloadEmbeddings() {
-  return post<{ success: boolean; cards: number }>('/api/coach/embeddings/download')
-}
-
-export async function coachChat(
-  deckId: string,
-  messages: { role: string; content: string }[],
-  goals?: Record<string, unknown>
-) {
-  return post<CoachChatResponse>('/api/coach/chat', {
-    deck_id: deckId,
-    messages,
-    goals,
-    stream: false,
-  })
-}
-
-export async function coachChatStream(
-  deckId: string,
-  messages: { role: string; content: string }[],
-  goals?: Record<string, unknown>,
-  onChunk?: (text: string) => void,
-  signal?: AbortSignal
-): Promise<string> {
-  const res = await fetch('/api/coach/chat', {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({
-      deck_id: deckId,
-      messages,
-      goals,
-      stream: true,
-    }),
-    signal,
-  })
-
-  if (!res.ok) {
-    const body = await res.text()
-    throw new Error(body || `HTTP ${res.status}`)
-  }
-
-  const reader = res.body?.getReader()
-  if (!reader) throw new Error('No response body')
-
-  const decoder = new TextDecoder()
-  let fullText = ''
-  let buffer = ''
-
-  while (true) {
-    const { done, value } = await reader.read()
-    if (done) break
-
-    buffer += decoder.decode(value, { stream: true })
-    const lines = buffer.split('\n')
-    buffer = lines.pop() || ''
-
-    for (const line of lines) {
-      if (line.startsWith('data: ')) {
-        const data = line.slice(6).trim()
-        if (data === '[DONE]') break
-        try {
-          const parsed = JSON.parse(data)
-          if (parsed.content) {
-            fullText += parsed.content
-            onChunk?.(fullText)
-          }
-        } catch { /* skip bad chunks */ }
-      }
-    }
-  }
-
-  return fullText
-}
-
-export async function applyCoachSuggestions(
-  sessionId: string,
-  deckId: number,
-  acceptedCuts: string[],
-  acceptedAdds: string[]
-) {
-  return post<CoachApplyResult>('/api/coach/apply', {
-    session_id: sessionId,
-    deck_id: deckId,
-    accepted_cuts: acceptedCuts,
-    accepted_adds: acceptedAdds,
-  })
-}
-
-export async function searchCardsLike(card: string, colors?: string, topN = 10) {
-  const params: Record<string, string | number> = { card, top_n: topN }
-  if (colors) params.colors = colors
-  return get<{ query: string; results: CoachCardLikeResult[] }>('/api/coach/cards-like', params)
-}
-
-export async function generateReport(deckId?: number) {
-  return post<{ status: string; decksUpdated: string[]; count: number }>('/api/coach/reports/generate',
-    deckId ? { deck_id: deckId } : undefined
-  )
-}

frontend/commander-ai-lab-ui/src/api/collection.ts

@@ -1,86 +0,0 @@
-import { get, post, patch, postForm } from './client'
-import type { CollectionCard, CollectionFilters, SetInfo, ScanResult } from '../types'
-
-export async function searchCollection(filters: CollectionFilters) {
-  // Map frontend snake_case filter names to backend camelCase param names
-  const params: Record<string, string | number | boolean> = {}
-  if (filters.q) params.q = filters.q
-  if (filters.page) params.page = filters.page
-  if (filters.page_size) params.pageSize = filters.page_size
-  if (filters.sort_by) params.sortField = filters.sort_by
-  if (filters.sort_dir) params.sortDir = filters.sort_dir
-  if (filters.color) params.colors = filters.color
-  if (filters.type_line) params.types = filters.type_line
-  if (filters.rarity) params.rarity = filters.rarity
-  if (filters.set_code) params.setCode = filters.set_code
-  if (filters.cmc_min !== undefined) params.cmcMin = filters.cmc_min
-  if (filters.cmc_max !== undefined) params.cmcMax = filters.cmc_max
-  if (filters.price_min !== undefined) params.priceMin = filters.price_min
-  if (filters.price_max !== undefined) params.priceMax = filters.price_max
-  if (filters.owned_only !== undefined) params.owned_only = filters.owned_only
-
-  const res = await get<{ items?: CollectionCard[]; cards?: CollectionCard[]; total: number; page: number; pageSize?: number; page_size?: number }>(
-    '/api/collection', params
-  )
-  return {
-    cards: res.items || res.cards || [],
-    total: res.total || 0,
-    page: res.page || 1,
-    page_size: res.pageSize || res.page_size || 48,
-  }
-}
-
-export async function getCard(cardId: number) {
-  return get<CollectionCard>(`/api/collection/${cardId}`)
-}
-
-export async function updateCard(cardId: number, updates: Partial<CollectionCard>) {
-  return patch<CollectionCard>(`/api/collection/${cardId}`, updates)
-}
-
-export async function getSets() {
-  const res = await get<SetInfo[] | { sets: SetInfo[] }>('/api/collection/sets')
-  return Array.isArray(res) ? res : (res as { sets: SetInfo[] }).sets || []
-}
-
-export async function getKeywords() {
-  const res = await get<string[] | { keywords: string[] }>('/api/collection/keywords')
-  return Array.isArray(res) ? res : (res as { keywords: string[] }).keywords || []
-}
-
-export async function exportCollection(format: string = 'csv') {
-  const res = await fetch(`/api/collection/export?format=${format}`)
-  return res.blob()
-}
-
-export async function importCollection(file: File) {
-  const fd = new FormData()
-  fd.append('file', file)
-  return postForm<{ imported: number; errors: string[] }>('/api/collection/import', fd)
-}
-
-export async function scanCard(file: File) {
-  const fd = new FormData()
-  fd.append('image', file)
-  return postForm<ScanResult>('/api/collection/scan', fd)
-}
-
-export async function addScanResult(match: { name: string; set_code: string; scryfall_id: string; quantity?: number }) {
-  return post<{ success: boolean; card_id: number }>('/api/collection/scan/add', match)
-}
-
-export async function reEnrichCards() {
-  return post<{ updated: number }>('/api/collection/re-enrich')
-}
-
-export async function autoClassify(cardId: number) {
-  return post<{ classifications: string[] }>(`/api/collection/auto-classify`, { card_id: cardId })
-}
-
-export async function autoClassifyAll() {
-  return post<{ processed: number }>('/api/collection/auto-classify-all')
-}
-
-export async function getEdhrecData(cardId: number) {
-  return get<Record<string, unknown>>(`/api/collection/${cardId}/edhrec`)
-}

frontend/commander-ai-lab-ui/src/api/deckgen.ts

@@ -1,22 +0,0 @@
-import { get, post } from './client'
-import type { DeckGenV3Request, DeckGenV3Status, DeckGenV3Result, CommanderSearchResult } from '../types'
-
-export async function getV3Status() {
-  return get<DeckGenV3Status>('/api/deck/v3/status')
-}
-
-export async function searchCommanders(q: string) {
-  return get<CommanderSearchResult[]>('/api/deck-generator/commander-search', { q })
-}
-
-export async function generateDeckV3(req: DeckGenV3Request) {
-  return post<DeckGenV3Result>('/api/deck/v3/generate', req)
-}
-
-export async function commitDeckV3(req: DeckGenV3Request) {
-  return post<DeckGenV3Result & { deck_id: number; dck_path: string }>('/api/deck/v3/commit', req)
-}
-
-export async function exportDeckV3(format: 'csv' | 'dck' | 'moxfield' | 'shopping', req: DeckGenV3Request) {
-  return post<Record<string, unknown>>(`/api/deck/v3/export/${format}`, req)
-}

frontend/commander-ai-lab-ui/src/api/decks.ts

@@ -1,130 +0,0 @@
-import { get, post, put, del, patch } from './client'
-import type { Deck, DeckCard, DeckAnalysis, EdhRecsResponse, CollectionRecsResponse, PplxStatus } from '../types'
-
-export async function listDecks() {
-  const res = await get<{ decks: Record<string, unknown>[] } | Record<string, unknown>[]>('/api/decks')
-  const raw = Array.isArray(res) ? res : (res as { decks: Record<string, unknown>[] }).decks || []
-  return raw.map(d => ({
-    ...d,
-    commander: d.commander || d.commander_name || '',
-    card_count: d.card_count ?? d.total_cards ?? 0,
-    total_price: d.total_price ?? 0,
-    color_identity: d.color_identity || [],
-    created_date: d.created_date || d.created_at || '',
-    updated_date: d.updated_date || d.updated_at || '',
-  })) as Deck[]
-}
-
-export async function getDeck(deckId: number) {
-  return get<Deck>(`/api/decks/${deckId}`)
-}
-
-export async function createDeck(deck: { name: string; commander?: string; format?: string }) {
-  return post<Deck>('/api/decks', deck)
-}
-
-export async function updateDeck(deckId: number, updates: Partial<Deck>) {
-  return put<Deck>(`/api/decks/${deckId}`, updates)
-}
-
-export async function deleteDeck(deckId: number) {
-  return del<void>(`/api/decks/${deckId}`)
-}
-
-export async function deleteAllDecks() {
-  return del<void>('/api/decks')
-}
-
-export async function getDeckCards(deckId: number) {
-  const res = await get<{ cards: Record<string, unknown>[]; total: number } | Record<string, unknown>[]>(`/api/decks/${deckId}/cards`)
-  const raw = Array.isArray(res) ? res : (res as { cards: Record<string, unknown>[] }).cards || []
-  return raw.map(c => ({
-    ...c,
-    name: c.name || c.card_name || '',
-    category: c.category || c.role_tag || '',
-  })) as DeckCard[]
-}
-
-export async function addCardToDeck(deckId: number, card: { name: string; scryfall_id?: string; quantity?: number; category?: string }) {
-  return post<DeckCard>(`/api/decks/${deckId}/cards`, card)
-}
-
-export async function removeCardFromDeck(deckId: number, cardId: number) {
-  return del<void>(`/api/decks/${deckId}/cards/${cardId}`)
-}
-
-export async function updateDeckCard(deckId: number, cardId: number, updates: Partial<DeckCard>) {
-  return patch<DeckCard>(`/api/decks/${deckId}/cards/${cardId}`, updates)
-}
-
-export async function getDeckAnalysis(deckId: number) {
-  const raw = await get<Record<string, unknown>>(`/api/decks/${deckId}/analysis`)
-  // Backend returns: counts_by_type, targets, deltas, mana_curve, color_pips, total_cards, roles
-  // Frontend DeckAnalysis expects: card_count, land_count, creature_count, noncreature_count, avg_cmc, mana_curve, color_distribution, type_distribution, total_price, owned_count, missing_count
-  const counts = (raw.counts_by_type || {}) as Record<string, number>
-  const totalCards = (raw.total_cards as number) || 0
-  const landCount = counts['Land'] || 0
-  const creatureCount = counts['Creature'] || 0
-  const manaCurve = (raw.mana_curve || {}) as Record<string | number, number>
-  const colorPips = (raw.color_pips || {}) as Record<string, number>
-  // Compute avg CMC from mana curve
-  let totalMana = 0, nonLandCards = 0
-  for (const [cmc, count] of Object.entries(manaCurve)) {
-    const cmcNum = cmc === '6+' ? 6 : Number(cmc)
-    totalMana += cmcNum * count
-    nonLandCards += count
-  }
-  return {
-    card_count: totalCards,
-    land_count: landCount,
-    creature_count: creatureCount,
-    noncreature_count: totalCards - landCount - creatureCount,
-    avg_cmc: nonLandCards > 0 ? totalMana / nonLandCards : 0,
-    mana_curve: manaCurve as Record<number, number>,
-    color_distribution: colorPips,
-    type_distribution: counts,
-    total_price: 0,
-    owned_count: totalCards,
-    missing_count: 0,
-  } as DeckAnalysis
-}
-
-export async function getCollectionRecs(deckId: number) {
-  return get<CollectionRecsResponse>(`/api/decks/${deckId}/recommended-from-collection`)
-}
-
-export async function getEdhRecs(deckId: number, onlyOwned = false, maxResults = 30) {
-  return get<EdhRecsResponse>(`/api/decks/${deckId}/edh-recs?only_owned=${onlyOwned}&max_results=${maxResults}`)
-}
-
-export async function bulkAddCards(deckId: number, cards: { name: string; quantity?: number }[]) {
-  return post<{ added: number }>(`/api/decks/${deckId}/bulk-add`, { cards })
-}
-
-export async function bulkAddRecommended(deckId: number, cards: string[]) {
-  return post<{ added: number }>(`/api/decks/${deckId}/bulk-add-recommended`, { card_names: cards })
-}
-
-export async function exportDeckToSim(deckId: number) {
-  return post<{ path: string }>(`/api/decks/${deckId}/export-to-sim`)
-}
-
-export async function importDeckToDeck(deckId: number, data: { text?: string; url?: string }) {
-  return post<{ imported: number }>(`/api/decks/${deckId}/import`, data)
-}
-
-export async function importNewDeck(data: { text?: string; url?: string; name?: string }) {
-  return post<Deck>('/api/decks/import-new', data)
-}
-
-export async function getPplxStatus() {
-  return get<PplxStatus>('/api/pplx/status')
-}
-
-export async function deckResearch(payload: { commander: string; strategy?: string }) {
-  return post<{ research: string }>('/api/deck-research', payload)
-}
-
-export async function deckGenerate(payload: { commander: string; strategy?: string; bracket?: number }) {
-  return post<{ cards: Array<{ name: string; quantity: number; category: string }> }>('/api/deck-generate', payload)
-}

frontend/commander-ai-lab-ui/src/api/index.ts

@@ -1,7 +0,0 @@
-export * as collectionApi from './collection'
-export * as decksApi from './decks'
-export * as deckgenApi from './deckgen'
-export * as labApi from './lab'
-export * as simApi from './sim'
-export * as coachApi from './coach'
-export * as trainingApi from './training'

frontend/commander-ai-lab-ui/src/api/lab.ts

@@ -1,65 +0,0 @@
-import { get, post } from './client'
-import type { LabDeck, LabStatus, LabResult, LabHistoryEntry, PreconDeck } from '../types'
-
-export async function getLabDecks() {
-  const res = await get<{ decks: LabDeck[] } | LabDeck[]>('/api/lab/decks')
-  return Array.isArray(res) ? res : (res as { decks: LabDeck[] }).decks || []
-}
-
-export async function startBatchSim(config: { decks: string[]; games: number; threads?: number; use_deepseek?: boolean; deepseek_deck?: string }) {
-  return post<{ run_id: string }>('/api/lab/start', config)
-}
-
-export async function startDeepSeekSim(config: { decks: string[]; games: number; deepseek_deck: string }) {
-  return post<{ run_id: string }>('/api/lab/start-deepseek', config)
-}
-
-export async function getLabStatus() {
-  return get<LabStatus>('/api/lab/status')
-}
-
-export async function getLabResult() {
-  return get<LabResult>('/api/lab/result')
-}
-
-export async function getLabHistory() {
-  const res = await get<{ results: LabHistoryEntry[] } | LabHistoryEntry[]>('/api/lab/history')
-  return Array.isArray(res) ? res : (res as { results: LabHistoryEntry[] }).results || []
-}
-
-export async function getPrecons() {
-  const res = await get<{ precons: PreconDeck[] } | PreconDeck[]>('/api/lab/precons')
-  return Array.isArray(res) ? res : (res as { precons: PreconDeck[] }).precons || []
-}
-
-export async function installPrecon(name: string) {
-  return post<{ installed: boolean }>('/api/lab/precons/install', { name })
-}
-
-export async function installPreconBatch(names: string[]) {
-  return post<{ installed: number }>('/api/lab/precons/install-batch', { names })
-}
-
-export async function getMetaCommanders() {
-  return get<Array<{ name: string; color_identity: string[] }>>('/api/lab/meta/commanders')
-}
-
-export async function searchMetaCommanders(q: string) {
-  return get<Array<{ name: string; color_identity: string[]; source: string }>>('/api/lab/meta/search', { q })
-}
-
-export async function fetchMetaDeck(commander: string) {
-  return post<{ deck_name: string; cards: Array<{ name: string; quantity: number }> }>('/api/lab/meta/fetch', { commander })
-}
-
-export async function importDeckFromUrl(url: string) {
-  return post<{ deck_name: string }>('/api/lab/import/url', { url })
-}
-
-export async function importDeckFromText(text: string, name?: string) {
-  return post<{ deck_name: string }>('/api/lab/import/text', { text, name })
-}
-
-export async function getLabLog() {
-  return get<{ log: string }>('/api/lab/log')
-}

frontend/commander-ai-lab-ui/src/api/sim.ts

@@ -1,38 +0,0 @@
-import { get, post } from './client'
-import type { SimStatus, SimResult, DeepSeekStatus } from '../types'
-
-export async function runSim(config: { deck_a: string; deck_b: string; games: number }) {
-  return post<{ sim_id: string }>('/api/sim/run', config)
-}
-
-export async function runSimFromDeck(deckId: number, config: { opponent?: string; games?: number }) {
-  return post<{ sim_id: string }>('/api/sim/run-from-deck', { deck_id: deckId, ...config })
-}
-
-export async function runDeepSeekSim(config: { deck_a: string; deck_b: string; games: number; deepseek_deck: string }) {
-  return post<{ sim_id: string }>('/api/sim/run-deepseek', config)
-}
-
-export async function getSimStatus(simId: string) {
-  return get<SimStatus>('/api/sim/status', { simId })
-}
-
-export async function getSimResult(simId: string) {
-  return get<SimResult>('/api/sim/result', { simId })
-}
-
-export async function connectDeepSeek() {
-  return post<DeepSeekStatus>('/api/deepseek/connect')
-}
-
-export async function getDeepSeekStatus() {
-  return get<DeepSeekStatus>('/api/deepseek/status')
-}
-
-export async function configureDeepSeek(config: { model?: string; base_url?: string }) {
-  return post<DeepSeekStatus>('/api/deepseek/configure', config)
-}
-
-export async function getDeepSeekLogs() {
-  return get<Array<{ filename: string; size: number; modified: string }>>('/api/deepseek/logs')
-}

frontend/commander-ai-lab-ui/src/api/training.ts

@@ -1,92 +0,0 @@
-import { get, post } from './client'
-import type {
-  MLStatus, MLDataStatus, MLTrainStatus, PPOTrainStatus,
-  TournamentStatus, TournamentResults, MLModelInfo
-} from '../types'
-
-// ── ML Status & Toggle ──────────────────────────────────────
-export async function getMLStatus() {
-  return get<MLStatus>('/api/ml/status')
-}
-
-export async function toggleML(enable = true) {
-  return post<{ ml_logging_enabled: boolean; message: string }>(`/api/ml/toggle?enable=${enable}`)
-}
-
-// ── Data & Model Info ───────────────────────────────────────
-export async function getDataStatus() {
-  return get<MLDataStatus>('/api/ml/data/status')
-}
-
-export async function getModelInfo() {
-  return get<MLModelInfo>('/api/ml/model')
-}
-
-export async function reloadModel(checkpoint?: string) {
-  return post<{ success: boolean; status: MLModelInfo }>('/api/ml/reload', checkpoint ? { checkpoint } : undefined)
-}
-
-// ── Supervised Training ─────────────────────────────────────
-export async function startTraining(config: {
-  epochs?: number
-  lr?: number
-  batchSize?: number
-  patience?: number
-  rebuildDataset?: boolean
-}) {
-  return post<{ status: string; config: Record<string, unknown> }>('/api/ml/train', config)
-}
-
-export async function getTrainStatus() {
-  return get<MLTrainStatus>('/api/ml/train/status')
-}
-
-// ── PPO Training ────────────────────────────────────────────
-export async function startPPOTraining(config: {
-  iterations?: number
-  episodesPerIter?: number
-  ppoEpochs?: number
-  batchSize?: number
-  lr?: number
-  clipEpsilon?: number
-  entropyCoeff?: number
-  opponent?: string
-  playstyle?: string
-  loadSupervised?: string
-}) {
-  return post<{ status: string; iterations: number }>('/api/ml/train/ppo', config)
-}
-
-export async function getPPOStatus() {
-  return get<PPOTrainStatus>('/api/ml/train/ppo/status')
-}
-
-// ── Tournament ──────────────────────────────────────────────
-export async function startTournament(config: {
-  episodes?: number
-  playstyle?: string
-}) {
-  return post<{ status: string; episodes: number }>('/api/ml/tournament', config)
-}
-
-export async function getTournamentStatus() {
-  return get<TournamentStatus>('/api/ml/tournament/status')
-}
-
-export async function getTournamentResults() {
-  return get<TournamentResults>('/api/ml/tournament/results')
-}
-
-// ── Decision Files ──────────────────────────────────────────
-export async function getDecisionFile(filename: string, limit = 100, offset = 0) {
-  return get<{ file: string; offset: number; limit: number; count: number; decisions: Record<string, unknown>[] }>(
-    `/api/ml/decisions/${filename}?limit=${limit}&offset=${offset}`
-  )
-}
-
-// ── Prediction ──────────────────────────────────────────────
-export async function predict(state: Record<string, unknown>) {
-  return post<{ action: string; action_index: number; confidence: number; probabilities: Record<string, number>; inference_ms: number }>(
-    '/api/ml/predict', state
-  )
-}

frontend/commander-ai-lab-ui/src/components/common/CardImage.tsx

@@ -1,49 +0,0 @@
-import { useState } from 'react'
-
-interface CardImageProps {
-  src: string
-  alt: string
-  size?: 'sm' | 'md' | 'lg' | 'xl'
-  className?: string
-  onClick?: () => void
-}
-
-const SIZES = {
-  sm: 'w-16 h-[22px]',    // tiny inline
-  md: 'w-[146px] h-[204px]',  // grid thumbnail
-  lg: 'w-[244px] h-[340px]',  // detail view
-  xl: 'w-[336px] h-[468px]',  // full size
-}
-
-export function CardImage({ src, alt, size = 'md', className = '', onClick }: CardImageProps) {
-  const [loaded, setLoaded] = useState(false)
-  const [error, setError] = useState(false)
-
-  // Build Scryfall URL if needed — ensure we get the right size
-  const imgUrl = src || ''
-
-  return (
-    <div
-      className={`relative overflow-hidden rounded-lg bg-bg-tertiary ${SIZES[size]} ${onClick ? 'cursor-pointer hover:ring-2 hover:ring-accent-blue/50 transition-all' : ''} ${className}`}
-      onClick={onClick}
-    >
-      {!error ? (
-        <img
-          src={imgUrl}
-          alt={alt}
-          className={`w-full h-full object-cover transition-opacity duration-200 ${loaded ? 'opacity-100' : 'opacity-0'}`}
-          onLoad={() => setLoaded(true)}
-          onError={() => setError(true)}
-          loading="lazy"
-        />
-      ) : (
-        <div className="flex items-center justify-center w-full h-full text-text-tertiary text-xs text-center p-2">
-          {alt}
-        </div>
-      )}
-      {!loaded && !error && (
-        <div className="absolute inset-0 bg-bg-tertiary animate-pulse" />
-      )}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/components/common/EmptyState.tsx

@@ -1,19 +0,0 @@
-import type { LucideIcon } from 'lucide-react'
-
-interface EmptyStateProps {
-  icon: LucideIcon
-  title: string
-  description?: string
-  action?: React.ReactNode
-}
-
-export function EmptyState({ icon: Icon, title, description, action }: EmptyStateProps) {
-  return (
-    <div className="flex flex-col items-center justify-center py-16 text-center">
-      <Icon className="w-12 h-12 text-text-tertiary mb-4" strokeWidth={1.5} />
-      <h3 className="text-lg font-semibold text-text-primary mb-1">{title}</h3>
-      {description && <p className="text-sm text-text-secondary max-w-md mb-4">{description}</p>}
-      {action}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/components/common/ManaSymbols.tsx

@@ -1,69 +0,0 @@
-// Parse MTG mana cost strings like "{2}{W}{U}" into colored symbols
-
-const MANA_COLORS: Record<string, string> = {
-  W: 'bg-mana-white text-black',
-  U: 'bg-mana-blue text-white',
-  B: 'bg-mana-black text-white',
-  R: 'bg-mana-red text-white',
-  G: 'bg-mana-green text-white',
-  C: 'bg-mana-colorless text-white',
-}
-
-interface ManaSymbolsProps {
-  cost: string
-  size?: 'sm' | 'md'
-}
-
-export function ManaSymbols({ cost, size = 'sm' }: ManaSymbolsProps) {
-  if (!cost) return null
-
-  const symbols = cost.match(/\{([^}]+)\}/g)
-  if (!symbols) return <span className="text-text-tertiary">{cost}</span>
-
-  const sz = size === 'sm' ? 'w-5 h-5 text-[10px]' : 'w-6 h-6 text-xs'
-
-  return (
-    <span className="inline-flex items-center gap-0.5">
-      {symbols.map((s, i) => {
-        const val = s.replace(/[{}]/g, '')
-        const colorClass = MANA_COLORS[val] || 'bg-mana-colorless text-white'
-        return (
-          <span
-            key={i}
-            className={`${sz} inline-flex items-center justify-center rounded-full font-bold ${colorClass}`}
-          >
-            {val}
-          </span>
-        )
-      })}
-    </span>
-  )
-}
-
-// Color identity dots
-interface ColorDotsProps {
-  colors: string[]
-  size?: 'sm' | 'md'
-}
-
-export function ColorDots({ colors, size = 'sm' }: ColorDotsProps) {
-  if (!colors || colors.length === 0) return <span className="text-text-tertiary text-xs">Colorless</span>
-
-  const sz = size === 'sm' ? 'w-3 h-3' : 'w-4 h-4'
-
-  const DOT_COLORS: Record<string, string> = {
-    W: 'bg-mana-white',
-    U: 'bg-mana-blue',
-    B: 'bg-mana-black border border-border-secondary',
-    R: 'bg-mana-red',
-    G: 'bg-mana-green',
-  }
-
-  return (
-    <span className="inline-flex items-center gap-0.5">
-      {colors.map(c => (
-        <span key={c} className={`${sz} rounded-full ${DOT_COLORS[c] || 'bg-mana-colorless'}`} />
-      ))}
-    </span>
-  )
-}

frontend/commander-ai-lab-ui/src/components/common/Spinner.tsx

@@ -1,38 +0,0 @@
-interface SpinnerProps {
-  size?: 'sm' | 'md' | 'lg'
-  className?: string
-}
-
-const SIZES = { sm: 'w-4 h-4', md: 'w-6 h-6', lg: 'w-8 h-8' }
-
-export function Spinner({ size = 'md', className = '' }: SpinnerProps) {
-  return (
-    <svg
-      className={`animate-spin ${SIZES[size]} ${className}`}
-      viewBox="0 0 24 24"
-      fill="none"
-    >
-      <circle
-        cx="12" cy="12" r="10"
-        stroke="currentColor"
-        strokeWidth="3"
-        strokeLinecap="round"
-        className="opacity-20"
-      />
-      <path
-        d="M12 2a10 10 0 0 1 10 10"
-        stroke="currentColor"
-        strokeWidth="3"
-        strokeLinecap="round"
-      />
-    </svg>
-  )
-}
-
-export function PageSpinner() {
-  return (
-    <div className="flex items-center justify-center h-64">
-      <Spinner size="lg" className="text-accent-blue" />
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/components/common/StatusBadge.tsx

@@ -1,35 +0,0 @@
-import { CheckCircle, XCircle, AlertTriangle, Info } from 'lucide-react'
-
-type Variant = 'success' | 'error' | 'warning' | 'info' | 'neutral'
-
-interface StatusBadgeProps {
-  variant: Variant
-  label: string
-  className?: string
-}
-
-const STYLES: Record<Variant, string> = {
-  success: 'bg-status-success/15 text-status-success border-status-success/30',
-  error: 'bg-status-error/15 text-status-error border-status-error/30',
-  warning: 'bg-status-warning/15 text-status-warning border-status-warning/30',
-  info: 'bg-status-info/15 text-status-info border-status-info/30',
-  neutral: 'bg-bg-tertiary text-text-secondary border-border-primary',
-}
-
-const ICONS: Record<Variant, typeof CheckCircle> = {
-  success: CheckCircle,
-  error: XCircle,
-  warning: AlertTriangle,
-  info: Info,
-  neutral: Info,
-}
-
-export function StatusBadge({ variant, label, className = '' }: StatusBadgeProps) {
-  const Icon = ICONS[variant]
-  return (
-    <span className={`inline-flex items-center gap-1.5 px-2.5 py-1 text-xs font-medium rounded-md border ${STYLES[variant]} ${className}`}>
-      <Icon className="w-3.5 h-3.5" />
-      {label}
-    </span>
-  )
-}

frontend/commander-ai-lab-ui/src/components/common/index.ts

@@ -1,5 +0,0 @@
-export { Spinner, PageSpinner } from './Spinner'
-export { StatusBadge } from './StatusBadge'
-export { CardImage } from './CardImage'
-export { ManaSymbols, ColorDots } from './ManaSymbols'
-export { EmptyState } from './EmptyState'

frontend/commander-ai-lab-ui/src/components/layout/PageLayout.tsx

@@ -1,16 +0,0 @@
-import { Sidebar } from './Sidebar'
-
-interface PageLayoutProps {
-  children: React.ReactNode
-}
-
-export function PageLayout({ children }: PageLayoutProps) {
-  return (
-    <div className="min-h-screen bg-bg-primary">
-      <Sidebar />
-      <main className="ml-56 min-h-screen">
-        {children}
-      </main>
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/components/layout/Sidebar.tsx

@@ -1,51 +0,0 @@
-import { NavLink } from 'react-router-dom'
-
-const NAV_ITEMS = [
-  { to: '/',           label: 'Batch Sim',   icon: '⚗️' },
-  { to: '/collection', label: 'Collection',  icon: '📦' },
-  { to: '/decks',      label: 'Decks',       icon: '🃏' },
-  { to: '/autogen',    label: 'Auto Gen',    icon: '⚡' },
-  { to: '/simulator',  label: 'Simulator',   icon: '🎮' },
-  { to: '/coach',      label: 'Coach',       icon: '🧠' },
-  { to: '/training',   label: 'Training',    icon: '📈' },
-]
-
-export function Sidebar() {
-  return (
-    <aside className="fixed left-0 top-0 bottom-0 w-56 bg-bg-secondary border-r border-border-primary flex flex-col z-30">
-      {/* Logo */}
-      <div className="px-5 py-5 border-b border-border-primary">
-        <h1 className="text-base font-bold text-text-primary tracking-tight">
-          Commander AI Lab
-        </h1>
-        <p className="text-xs text-text-tertiary mt-0.5">MTG Intelligence Platform</p>
-      </div>
-
-      {/* Nav */}
-      <nav className="flex-1 py-3 overflow-y-auto">
-        {NAV_ITEMS.map(item => (
-          <NavLink
-            key={item.to}
-            to={item.to}
-            end={item.to === '/'}
-            className={({ isActive }) =>
-              `flex items-center gap-3 px-5 py-2.5 text-sm transition-colors duration-150 ${
-                isActive
-                  ? 'bg-accent-blue/10 text-accent-blue border-r-2 border-accent-blue'
-                  : 'text-text-secondary hover:text-text-primary hover:bg-bg-hover'
-              }`
-            }
-          >
-            <span className="text-base">{item.icon}</span>
-            <span>{item.label}</span>
-          </NavLink>
-        ))}
-      </nav>
-
-      {/* Footer */}
-      <div className="px-5 py-4 border-t border-border-primary">
-        <p className="text-xs text-text-tertiary">v4.0 — React + TypeScript</p>
-      </div>
-    </aside>
-  )
-}

frontend/commander-ai-lab-ui/src/hooks/usePolling.ts

@@ -1,13 +0,0 @@
-import { useEffect, useRef } from 'react'
-
-/** Polls a function at the given interval while `enabled` is true */
-export function usePolling(fn: () => void, intervalMs: number, enabled: boolean) {
-  const savedFn = useRef(fn)
-  savedFn.current = fn
-
-  useEffect(() => {
-    if (!enabled) return
-    const id = setInterval(() => savedFn.current(), intervalMs)
-    return () => clearInterval(id)
-  }, [intervalMs, enabled])
-}

frontend/commander-ai-lab-ui/src/index.css

@@ -1,114 +0,0 @@
-@import "tailwindcss";
-
-/* ═══════════════════════════════════════════════════════════
-   Commander AI Lab — Design Tokens (Tailwind v4 CSS Theme)
-   Fresh dark theme with MTG-inspired accents
-   ═══════════════════════════════════════════════════════════ */
-
-@theme {
-  /* ── Backgrounds ── */
-  --color-bg-primary: #0f1117;
-  --color-bg-secondary: #161921;
-  --color-bg-tertiary: #1c2030;
-  --color-bg-elevated: #222738;
-  --color-bg-hover: #2a3048;
-
-  /* ── Borders ── */
-  --color-border-primary: #2a2f42;
-  --color-border-secondary: #363c54;
-  --color-border-accent: #4f6ef7;
-
-  /* ── Text ── */
-  --color-text-primary: #e8eaf0;
-  --color-text-secondary: #9ba1b8;
-  --color-text-tertiary: #6b7190;
-  --color-text-inverse: #0f1117;
-
-  /* ── Accents ── */
-  --color-accent-blue: #4f6ef7;
-  --color-accent-blue-hover: #6b84ff;
-  --color-accent-teal: #2dd4bf;
-  --color-accent-teal-hover: #5eead4;
-  --color-accent-purple: #a78bfa;
-  --color-accent-amber: #fbbf24;
-  --color-accent-red: #f87171;
-  --color-accent-green: #4ade80;
-
-  /* ── MTG Mana Colors ── */
-  --color-mana-white: #f9faf4;
-  --color-mana-blue: #0e67ab;
-  --color-mana-black: #2b2424;
-  --color-mana-red: #d3202a;
-  --color-mana-green: #00733e;
-  --color-mana-colorless: #706f6f;
-
-  /* ── Status ── */
-  --color-status-success: #4ade80;
-  --color-status-warning: #fbbf24;
-  --color-status-error: #f87171;
-  --color-status-info: #60a5fa;
-
-  /* ── Radius ── */
-  --radius-sm: 0.375rem;
-  --radius-md: 0.5rem;
-  --radius-lg: 0.75rem;
-  --radius-xl: 1rem;
-
-  /* ── Shadows ── */
-  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
-  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
-  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
-  --shadow-glow-blue: 0 0 20px rgba(79, 110, 247, 0.15);
-  --shadow-glow-teal: 0 0 20px rgba(45, 212, 191, 0.15);
-}
-
-/* ── Base Styles ── */
-html {
-  background-color: var(--color-bg-primary);
-  color: var(--color-text-primary);
-}
-
-body {
-  font-family: 'Inter', system-ui, -apple-system, sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-/* ── Scrollbar ── */
-::-webkit-scrollbar {
-  width: 8px;
-  height: 8px;
-}
-::-webkit-scrollbar-track {
-  background: var(--color-bg-secondary);
-}
-::-webkit-scrollbar-thumb {
-  background: var(--color-border-secondary);
-  border-radius: 4px;
-}
-::-webkit-scrollbar-thumb:hover {
-  background: var(--color-text-tertiary);
-}
-
-/* ── Utility animations ── */
-@keyframes fade-in {
-  from { opacity: 0; transform: translateY(4px); }
-  to { opacity: 1; transform: translateY(0); }
-}
-@keyframes pulse-glow {
-  0%, 100% { box-shadow: 0 0 0 0 rgba(79, 110, 247, 0.2); }
-  50% { box-shadow: 0 0 16px 4px rgba(79, 110, 247, 0.15); }
-}
-@keyframes spin {
-  to { transform: rotate(360deg); }
-}
-
-.animate-fade-in {
-  animation: fade-in 0.2s ease-out;
-}
-.animate-pulse-glow {
-  animation: pulse-glow 2s infinite;
-}
-.animate-spin {
-  animation: spin 1s linear infinite;
-}

frontend/commander-ai-lab-ui/src/main.tsx

@@ -1,10 +0,0 @@
-import { StrictMode } from 'react'
-import { createRoot } from 'react-dom/client'
-import './index.css'
-import App from './App.tsx'
-
-createRoot(document.getElementById('root')!).render(
-  <StrictMode>
-    <App />
-  </StrictMode>,
-)

frontend/commander-ai-lab-ui/src/pages/AutoGenPage.tsx

@@ -1,436 +0,0 @@
-import { useState, useEffect, useRef } from 'react'
-import {
-  Search, Wand2, Save, AlertCircle,
-  ChevronDown, Sparkles, RefreshCw, Check
-} from 'lucide-react'
-import { Spinner, StatusBadge, ManaSymbols, CardImage, ColorDots } from '../components/common'
-import { deckgenApi } from '../api'
-import type { DeckGenV3Status, DeckGenV3Result, DeckGenV3Card, CommanderSearchResult } from '../types'
-import { BarChart, Bar, XAxis, YAxis, Tooltip, ResponsiveContainer, Cell } from 'recharts'
-
-// ── Commander Search ──────────────────────────────────────────
-function CommanderSearch({ onSelect }: { onSelect: (c: CommanderSearchResult) => void }) {
-  const [query, setQuery] = useState('')
-  const [results, setResults] = useState<CommanderSearchResult[]>([])
-  const [searching, setSearching] = useState(false)
-  const debounceRef = useRef<ReturnType<typeof setTimeout>>(undefined)
-
-  function handleSearch(q: string) {
-    setQuery(q)
-    clearTimeout(debounceRef.current)
-    if (q.length < 2) { setResults([]); return }
-    debounceRef.current = setTimeout(async () => {
-      setSearching(true)
-      try {
-        const r = await deckgenApi.searchCommanders(q)
-        setResults(r)
-      } catch { setResults([]) }
-      setSearching(false)
-    }, 300)
-  }
-
-  return (
-    <div className="relative">
-      <div className="relative">
-        <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-text-tertiary" />
-        <input
-          type="text"
-          placeholder="Search for a commander..."
-          value={query}
-          onChange={e => handleSearch(e.target.value)}
-          className="w-full pl-10 pr-4 py-3 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 focus:ring-1 focus:ring-accent-blue/30 transition-all"
-        />
-        {searching && <Spinner size="sm" className="absolute right-3 top-1/2 -translate-y-1/2 text-accent-blue" />}
-      </div>
-      {results.length > 0 && (
-        <div className="absolute z-20 top-full mt-1 w-full bg-bg-elevated border border-border-primary rounded-xl shadow-lg max-h-80 overflow-y-auto">
-          {results.map(c => (
-            <button
-              key={c.scryfall_id}
-              onClick={() => { onSelect(c); setQuery(c.name); setResults([]) }}
-              className="w-full flex items-center gap-3 px-4 py-3 hover:bg-bg-hover text-left transition-colors"
-            >
-              <CardImage src={c.image_url} alt={c.name} size="sm" />
-              <div className="flex-1 min-w-0">
-                <p className="text-sm font-medium text-text-primary truncate">{c.name}</p>
-                <p className="text-xs text-text-secondary truncate">{c.type_line}</p>
-              </div>
-              <ColorDots colors={c.color_identity} />
-              {c.in_collection && (
-                <span className="text-[10px] px-1.5 py-0.5 bg-accent-green/15 text-accent-green rounded">Owned</span>
-              )}
-            </button>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ── Generated Deck View ───────────────────────────────────────
-function GeneratedDeckView({ result, onCommit }: { result: DeckGenV3Result; onCommit: () => void }) {
-  const [view, setView] = useState<'visual' | 'list'>('visual')
-  const [committing, setCommitting] = useState(false)
-  const [selectedCard, setSelectedCard] = useState<DeckGenV3Card | null>(null)
-
-  // Group by category
-  const grouped = result.cards.reduce<Record<string, DeckGenV3Card[]>>((acc, c) => {
-    const cat = c.category || 'Other'
-    if (!acc[cat]) acc[cat] = []
-    acc[cat].push(c)
-    return acc
-  }, {})
-
-  const curveData = Object.entries(result.stats.mana_curve)
-    .map(([cmc, count]) => ({ cmc: cmc === '7' ? '7+' : cmc, count }))
-    .sort((a, b) => Number(a.cmc) - Number(b.cmc))
-
-  async function handleCommit() {
-    setCommitting(true)
-    try { onCommit() } catch { /* ignore */ }
-    setCommitting(false)
-  }
-
-  return (
-    <div className="space-y-5 animate-fade-in">
-      {/* Commander header */}
-      <div className="flex gap-5 bg-bg-secondary rounded-xl border border-border-primary p-5">
-        <CardImage src={result.commander.image_url} alt={result.commander.name} size="lg" />
-        <div className="flex-1 space-y-3">
-          <div>
-            <h2 className="text-xl font-bold text-text-primary">{result.commander.name}</h2>
-            <p className="text-sm text-text-secondary">{result.commander.type_line}</p>
-            <div className="flex items-center gap-3 mt-2">
-              <ManaSymbols cost={result.commander.mana_cost} size="md" />
-              <ColorDots colors={result.commander.color_identity} size="md" />
-            </div>
-          </div>
-          <p className="text-sm text-text-primary whitespace-pre-wrap">{result.commander.oracle_text}</p>
-          <div className="flex items-center gap-4 text-xs text-text-secondary">
-            <span>Strategy: <span className="text-accent-blue font-medium">{result.strategy}</span></span>
-            <span>Bracket: <span className="text-accent-amber font-medium">{result.bracket}</span></span>
-            <span>Model: <span className="text-accent-purple font-medium">{result.model}</span></span>
-          </div>
-          {result.substitution && (
-            <div className="flex items-center gap-3 text-xs">
-              <span className="text-accent-green">{result.substitution.owned} owned</span>
-              <span className="text-accent-amber">{result.substitution.substituted} substituted</span>
-              <span className="text-accent-red">{result.substitution.missing} missing</span>
-            </div>
-          )}
-        </div>
-      </div>
-
-      {/* Actions */}
-      <div className="flex items-center gap-3">
-        <button onClick={handleCommit} disabled={committing}
-          className="flex items-center gap-2 px-4 py-2.5 bg-accent-green/15 text-accent-green text-sm font-medium rounded-lg hover:bg-accent-green/25 border border-accent-green/30 transition-colors disabled:opacity-50">
-          {committing ? <Spinner size="sm" /> : <Save className="w-4 h-4" />}
-          Save to Decks
-        </button>
-        <div className="flex items-center gap-1 bg-bg-secondary rounded-lg border border-border-primary p-0.5">
-          <button onClick={() => setView('visual')}
-            className={`px-3 py-1.5 text-xs font-medium rounded-md transition-colors ${view === 'visual' ? 'bg-bg-hover text-text-primary' : 'text-text-tertiary hover:text-text-secondary'}`}>
-            Visual
-          </button>
-          <button onClick={() => setView('list')}
-            className={`px-3 py-1.5 text-xs font-medium rounded-md transition-colors ${view === 'list' ? 'bg-bg-hover text-text-primary' : 'text-text-tertiary hover:text-text-secondary'}`}>
-            List
-          </button>
-        </div>
-        {/* Stats summary */}
-        <div className="flex-1" />
-        <span className="text-xs text-text-tertiary">{result.stats.card_count} cards</span>
-        <span className="text-xs text-accent-teal font-medium">${result.stats.total_price.toFixed(2)}</span>
-      </div>
-
-      {/* Mana curve mini */}
-      <div className="bg-bg-secondary rounded-xl border border-border-primary p-4">
-        <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider mb-2">Mana Curve</h4>
-        <div className="h-28">
-          <ResponsiveContainer width="100%" height="100%">
-            <BarChart data={curveData} barSize={20}>
-              <XAxis dataKey="cmc" axisLine={false} tickLine={false} tick={{ fill: '#6b7190', fontSize: 10 }} />
-              <YAxis hide />
-              <Tooltip contentStyle={{ backgroundColor: '#1c2030', border: '1px solid #2a2f42', borderRadius: 8, fontSize: 11 }} />
-              <Bar dataKey="count" radius={[3, 3, 0, 0]}>
-                {curveData.map((_, i) => <Cell key={i} fill="#4f6ef7" fillOpacity={0.8} />)}
-              </Bar>
-            </BarChart>
-          </ResponsiveContainer>
-        </div>
-      </div>
-
-      {/* Card grid/list */}
-      {view === 'visual' ? (
-        <div className="space-y-5">
-          {Object.entries(grouped).map(([cat, cards]) => (
-            <div key={cat}>
-              <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider mb-3">{cat} ({cards.length})</h4>
-              <div className="grid grid-cols-3 sm:grid-cols-4 md:grid-cols-5 lg:grid-cols-6 xl:grid-cols-8 gap-2">
-                {cards.map(card => (
-                  <div key={card.name} className="group cursor-pointer relative" onClick={() => setSelectedCard(card)}>
-                    <CardImage src={card.image_url} alt={card.name} size="md" className="w-full h-auto aspect-[5/7]" />
-                    {card.is_substitute && (
-                      <div className="absolute top-1 right-1 w-4 h-4 bg-accent-amber rounded-full flex items-center justify-center">
-                        <RefreshCw className="w-2.5 h-2.5 text-bg-primary" />
-                      </div>
-                    )}
-                    {card.owned && (
-                      <div className="absolute top-1 left-1 w-4 h-4 bg-accent-green rounded-full flex items-center justify-center">
-                        <Check className="w-2.5 h-2.5 text-bg-primary" />
-                      </div>
-                    )}
-                  </div>
-                ))}
-              </div>
-            </div>
-          ))}
-        </div>
-      ) : (
-        <div className="bg-bg-secondary rounded-xl border border-border-primary overflow-hidden">
-          <table className="w-full text-sm">
-            <thead>
-              <tr className="border-b border-border-primary text-left">
-                <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Card</th>
-                <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Category</th>
-                <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Role</th>
-                <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Mana</th>
-                <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider text-right">Price</th>
-                <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Status</th>
-              </tr>
-            </thead>
-            <tbody className="divide-y divide-border-primary">
-              {result.cards.map(card => (
-                <tr key={card.name} className="hover:bg-bg-hover transition-colors">
-                  <td className="px-4 py-2.5">
-                    <span className="font-medium text-text-primary">{card.quantity}x {card.name}</span>
-                    {card.is_substitute && (
-                      <span className="ml-2 text-[10px] text-accent-amber">sub for {card.original_name}</span>
-                    )}
-                  </td>
-                  <td className="px-4 py-2.5 text-xs text-text-secondary">{card.category}</td>
-                  <td className="px-4 py-2.5 text-xs text-text-secondary">{card.role}</td>
-                  <td className="px-4 py-2.5"><ManaSymbols cost={card.mana_cost} /></td>
-                  <td className="px-4 py-2.5 text-right text-accent-teal text-xs">{card.tcg_price != null ? `$${card.tcg_price.toFixed(2)}` : '—'}</td>
-                  <td className="px-4 py-2.5">
-                    <span className={`text-[10px] px-2 py-0.5 rounded ${card.owned ? 'bg-accent-green/15 text-accent-green' : 'bg-bg-tertiary text-text-tertiary'}`}>
-                      {card.owned ? `Owned (${card.owned_qty})` : 'Missing'}
-                    </span>
-                  </td>
-                </tr>
-              ))}
-            </tbody>
-          </table>
-        </div>
-      )}
-
-      {/* Card detail popup */}
-      {selectedCard && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/70 backdrop-blur-sm" onClick={() => setSelectedCard(null)}>
-          <div className="bg-bg-secondary rounded-xl border border-border-primary shadow-lg max-w-2xl w-full mx-4 p-6 animate-fade-in" onClick={e => e.stopPropagation()}>
-            <div className="flex gap-5">
-              <CardImage src={selectedCard.image_url} alt={selectedCard.name} size="lg" />
-              <div className="flex-1 space-y-3">
-                <h3 className="text-lg font-bold text-text-primary">{selectedCard.name}</h3>
-                <p className="text-sm text-text-secondary">{selectedCard.type_line}</p>
-                <ManaSymbols cost={selectedCard.mana_cost} size="md" />
-                <p className="text-sm text-text-primary whitespace-pre-wrap">{selectedCard.reason}</p>
-                <div className="flex items-center gap-3 text-xs">
-                  <span className="text-text-tertiary">Role: <span className="text-accent-blue">{selectedCard.role}</span></span>
-                  {selectedCard.is_substitute && (
-                    <span className="text-accent-amber">Substituted for {selectedCard.original_name} ({(selectedCard.similarity_score ?? 0 * 100).toFixed(0)}%)</span>
-                  )}
-                </div>
-              </div>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ── Main Auto Gen Page ────────────────────────────────────────
-export function AutoGenPage() {
-  const [status, setStatus] = useState<DeckGenV3Status | null>(null)
-  const [loading, setLoading] = useState(true)
-  const [generating, setGenerating] = useState(false)
-  const [result, setResult] = useState<DeckGenV3Result | null>(null)
-  const [commander, setCommander] = useState<CommanderSearchResult | null>(null)
-  const [strategy, setStrategy] = useState('')
-  const [bracket, setBracket] = useState(3)
-  const [budget, setBudget] = useState<string>('')
-  const [useCollection, setUseCollection] = useState(true)
-  const [runSub, setRunSub] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-
-  useEffect(() => {
-    deckgenApi.getV3Status().then(s => { setStatus(s); setLoading(false) }).catch(() => setLoading(false))
-  }, [])
-
-  async function handleGenerate() {
-    if (!commander) return
-    setGenerating(true)
-    setError(null)
-    setResult(null)
-    try {
-      const res = await deckgenApi.generateDeckV3({
-        commander_name: commander.name,
-        strategy: strategy || undefined,
-        target_bracket: bracket,
-        budget_usd: budget ? Number(budget) : undefined,
-        use_collection: useCollection,
-        run_substitution: runSub,
-      })
-      setResult(res)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Generation failed')
-    }
-    setGenerating(false)
-  }
-
-  async function handleCommit() {
-    if (!commander || !result) return
-    try {
-      await deckgenApi.commitDeckV3({
-        commander_name: commander.name,
-        strategy: strategy || undefined,
-        target_bracket: bracket,
-        budget_usd: budget ? Number(budget) : undefined,
-        use_collection: useCollection,
-        run_substitution: runSub,
-      })
-    } catch { /* ignore */ }
-  }
-
-  if (loading) {
-    return <div className="p-6 flex items-center justify-center h-64"><Spinner size="lg" className="text-accent-blue" /></div>
-  }
-
-  return (
-    <div className="p-6 space-y-5">
-      <div>
-        <h1 className="text-2xl font-bold text-text-primary flex items-center gap-3">
-          <Sparkles className="w-6 h-6 text-accent-purple" />
-          Auto Gen V3
-        </h1>
-        <p className="text-sm text-text-secondary mt-0.5">AI-powered deck generation with Perplexity</p>
-      </div>
-
-      {/* Status bar */}
-      <div className="flex items-center gap-3">
-        <StatusBadge
-          variant={status?.initialized ? 'success' : 'error'}
-          label={status?.initialized ? 'Ready' : 'Not Initialized'}
-        />
-        <StatusBadge
-          variant={status?.pplx_configured ? 'success' : 'warning'}
-          label={status?.pplx_configured ? 'Perplexity Connected' : 'Perplexity Not Set'}
-        />
-        {status?.embeddings_loaded && (
-          <StatusBadge variant="info" label={`${status.embedding_cards.toLocaleString()} embeddings`} />
-        )}
-      </div>
-
-      {!result ? (
-        /* Config form */
-        <div className="max-w-2xl space-y-5">
-          <div>
-            <label className="text-sm font-medium text-text-primary block mb-2">Commander</label>
-            <CommanderSearch onSelect={setCommander} />
-            {commander && (
-              <div className="mt-2 flex items-center gap-3 p-3 bg-bg-secondary rounded-lg border border-border-primary">
-                <CardImage src={commander.image_url} alt={commander.name} size="sm" />
-                <div>
-                  <p className="text-sm font-medium text-text-primary">{commander.name}</p>
-                  <p className="text-xs text-text-secondary">{commander.type_line}</p>
-                </div>
-                <ColorDots colors={commander.color_identity} />
-              </div>
-            )}
-          </div>
-
-          <div>
-            <label className="text-sm font-medium text-text-primary block mb-2">Strategy (optional)</label>
-            <input
-              type="text"
-              placeholder="e.g. Voltron, Aristocrats, Storm..."
-              value={strategy}
-              onChange={e => setStrategy(e.target.value)}
-              className="w-full px-4 py-3 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-            />
-          </div>
-
-          <div className="grid grid-cols-2 gap-4">
-            <div>
-              <label className="text-sm font-medium text-text-primary block mb-2">Target Bracket</label>
-              <select
-                value={bracket}
-                onChange={e => setBracket(Number(e.target.value))}
-                className="w-full px-4 py-3 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all"
-              >
-                <option value={1}>1 — Casual</option>
-                <option value={2}>2 — Low Power</option>
-                <option value={3}>3 — Mid Power</option>
-                <option value={4}>4 — High Power</option>
-              </select>
-            </div>
-            <div>
-              <label className="text-sm font-medium text-text-primary block mb-2">Budget (USD, optional)</label>
-              <input
-                type="number"
-                placeholder="No limit"
-                value={budget}
-                onChange={e => setBudget(e.target.value)}
-                className="w-full px-4 py-3 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-              />
-            </div>
-          </div>
-
-          <div className="flex items-center gap-6">
-            <label className="flex items-center gap-2 cursor-pointer">
-              <input type="checkbox" checked={useCollection} onChange={e => setUseCollection(e.target.checked)}
-                className="w-4 h-4 rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30" />
-              <span className="text-sm text-text-secondary">Use collection cards</span>
-            </label>
-            <label className="flex items-center gap-2 cursor-pointer">
-              <input type="checkbox" checked={runSub} onChange={e => setRunSub(e.target.checked)}
-                className="w-4 h-4 rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30" />
-              <span className="text-sm text-text-secondary">Run substitution pass</span>
-            </label>
-          </div>
-
-          {error && (
-            <div className="flex items-center gap-2 px-4 py-3 bg-status-error/10 border border-status-error/30 rounded-lg text-sm text-status-error">
-              <AlertCircle className="w-4 h-4 flex-shrink-0" />
-              {error}
-            </div>
-          )}
-
-          <button
-            onClick={handleGenerate}
-            disabled={!commander || generating || !status?.initialized}
-            className="flex items-center gap-2 px-6 py-3 bg-accent-blue text-white text-sm font-semibold rounded-lg hover:bg-accent-blue-hover shadow-glow-blue transition-all disabled:opacity-50 disabled:shadow-none"
-          >
-            {generating ? (
-              <><Spinner size="sm" /> Generating...</>
-            ) : (
-              <><Wand2 className="w-4 h-4" /> Generate Deck</>
-            )}
-          </button>
-        </div>
-      ) : (
-        /* Results */
-        <div>
-          <button onClick={() => setResult(null)}
-            className="flex items-center gap-2 mb-4 text-sm text-text-secondary hover:text-text-primary transition-colors">
-            <ChevronDown className="w-4 h-4 rotate-90" />
-            Back to Config
-          </button>
-          <GeneratedDeckView result={result} onCommit={handleCommit} />
-        </div>
-      )}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/pages/BatchSimPage.tsx

@@ -1,415 +0,0 @@
-import { useState, useEffect } from 'react'
-import {
-  FlaskConical, Play, Clock, Trophy,
-  Upload, Link, FileText, History, ChevronRight, AlertCircle,
-  Check
-} from 'lucide-react'
-import { Spinner } from '../components/common'
-import { labApi } from '../api'
-import { usePolling } from '../hooks/usePolling'
-import type { LabDeck, LabStatus, LabResult, LabHistoryEntry, PreconDeck } from '../types'
-import { BarChart, Bar, XAxis, YAxis, Tooltip, ResponsiveContainer, Cell } from 'recharts'
-
-// ── Results Chart ─────────────────────────────────────────────
-function ResultsChart({ result }: { result: LabResult }) {
-  const data = result.decks
-    .sort((a, b) => b.win_rate - a.win_rate)
-    .map(d => ({
-      name: d.name.length > 20 ? d.name.slice(0, 18) + '...' : d.name,
-      win_rate: Math.round(d.win_rate * 100),
-      fullName: d.name,
-    }))
-
-  return (
-    <div className="h-64">
-      <ResponsiveContainer width="100%" height="100%">
-        <BarChart data={data} layout="vertical" barSize={20} margin={{ left: 10, right: 20 }}>
-          <XAxis type="number" domain={[0, 100]} tick={{ fill: '#6b7190', fontSize: 11 }} axisLine={false} tickLine={false} />
-          <YAxis type="category" dataKey="name" width={150} tick={{ fill: '#9ba1b8', fontSize: 11 }} axisLine={false} tickLine={false} />
-          <Tooltip
-            contentStyle={{ backgroundColor: '#1c2030', border: '1px solid #2a2f42', borderRadius: 8, fontSize: 12 }}
-            formatter={(value: unknown) => [`${value}%`, 'Win Rate']}
-            labelFormatter={(label: unknown) => data.find(d => d.name === String(label))?.fullName || String(label)}
-          />
-          <Bar dataKey="win_rate" radius={[0, 4, 4, 0]}>
-            {data.map((_, i) => (
-              <Cell key={i} fill={i === 0 ? '#4ade80' : i === 1 ? '#4f6ef7' : '#363c54'} />
-            ))}
-          </Bar>
-        </BarChart>
-      </ResponsiveContainer>
-    </div>
-  )
-}
-
-// ── Deck Selector ─────────────────────────────────────────────
-function DeckSelector({
-  decks,
-  selected,
-  onToggle,
-  precons,
-  onInstallPrecon,
-}: {
-  decks: LabDeck[]
-  selected: Set<string>
-  onToggle: (name: string) => void
-  precons: PreconDeck[]
-  onInstallPrecon: (name: string) => void
-}) {
-  const [showPrecons, setShowPrecons] = useState(false)
-  const [installing, setInstalling] = useState<string | null>(null)
-
-  async function handleInstall(name: string) {
-    setInstalling(name)
-    await onInstallPrecon(name)
-    setInstalling(null)
-  }
-
-  return (
-    <div className="space-y-3">
-      <h3 className="text-sm font-semibold text-text-primary">Available Decks</h3>
-      {decks.length === 0 ? (
-        <p className="text-xs text-text-tertiary">No decks available. Import or install precons.</p>
-      ) : (
-        <div className="space-y-1 max-h-64 overflow-y-auto">
-          {decks.map(d => (
-            <label key={d.name} className="flex items-center gap-3 px-3 py-2 rounded-lg hover:bg-bg-hover cursor-pointer transition-colors">
-              <input
-                type="checkbox"
-                checked={selected.has(d.name)}
-                onChange={() => onToggle(d.name)}
-                className="w-4 h-4 rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30"
-              />
-              <div className="flex-1 min-w-0">
-                <span className="text-sm text-text-primary truncate block">{d.name}</span>
-                <span className="text-[10px] text-text-tertiary">{d.source} · {d.card_count} cards</span>
-              </div>
-            </label>
-          ))}
-        </div>
-      )}
-
-      <button
-        onClick={() => setShowPrecons(!showPrecons)}
-        className="w-full flex items-center justify-between px-3 py-2 text-xs font-medium bg-bg-tertiary rounded-lg text-text-secondary hover:bg-bg-hover border border-border-primary transition-colors"
-      >
-        Precon Decks
-        <ChevronRight className={`w-3.5 h-3.5 transition-transform ${showPrecons ? 'rotate-90' : ''}`} />
-      </button>
-
-      {showPrecons && (
-        <div className="space-y-1 max-h-48 overflow-y-auto animate-fade-in">
-          {precons.map(p => (
-            <div key={p.name} className="flex items-center gap-3 px-3 py-2 rounded-lg bg-bg-tertiary">
-              <span className="flex-1 text-xs text-text-secondary truncate">{p.name}</span>
-              {p.installed ? (
-                <span className="text-[10px] text-accent-green flex items-center gap-1"><Check className="w-3 h-3" /> Installed</span>
-              ) : (
-                <button
-                  onClick={() => handleInstall(p.name)}
-                  disabled={installing === p.name}
-                  className="text-[10px] text-accent-blue hover:text-accent-blue-hover transition-colors"
-                >
-                  {installing === p.name ? <Spinner size="sm" /> : 'Install'}
-                </button>
-              )}
-            </div>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ── Import Panel ──────────────────────────────────────────────
-function ImportPanel({ onImported }: { onImported: () => void }) {
-  const [importUrl, setImportUrl] = useState('')
-  const [importText, setImportText] = useState('')
-  const [importName, setImportName] = useState('')
-  const [importing, setImporting] = useState(false)
-  const [importMode, setImportMode] = useState<'url' | 'text'>('url')
-
-  async function handleImport() {
-    setImporting(true)
-    try {
-      if (importMode === 'url' && importUrl.trim()) {
-        await labApi.importDeckFromUrl(importUrl.trim())
-      } else if (importMode === 'text' && importText.trim()) {
-        await labApi.importDeckFromText(importText.trim(), importName || undefined)
-      }
-      setImportUrl('')
-      setImportText('')
-      setImportName('')
-      onImported()
-    } catch { /* ignore */ }
-    setImporting(false)
-  }
-
-  return (
-    <div className="bg-bg-secondary rounded-xl border border-border-primary p-4 space-y-3">
-      <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-        <Upload className="w-4 h-4 text-accent-blue" />
-        Import Deck
-      </h3>
-      <div className="flex gap-1">
-        <button onClick={() => setImportMode('url')}
-          className={`flex-1 px-3 py-1.5 text-xs font-medium rounded-lg transition-colors ${importMode === 'url' ? 'bg-accent-blue/15 text-accent-blue' : 'bg-bg-tertiary text-text-tertiary'}`}>
-          <Link className="w-3 h-3 inline mr-1" />URL
-        </button>
-        <button onClick={() => setImportMode('text')}
-          className={`flex-1 px-3 py-1.5 text-xs font-medium rounded-lg transition-colors ${importMode === 'text' ? 'bg-accent-blue/15 text-accent-blue' : 'bg-bg-tertiary text-text-tertiary'}`}>
-          <FileText className="w-3 h-3 inline mr-1" />Text
-        </button>
-      </div>
-      {importMode === 'url' ? (
-        <input
-          type="text"
-          placeholder="Moxfield, Archidekt, or deck URL..."
-          value={importUrl}
-          onChange={e => setImportUrl(e.target.value)}
-          className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-        />
-      ) : (
-        <>
-          <input
-            type="text"
-            placeholder="Deck name"
-            value={importName}
-            onChange={e => setImportName(e.target.value)}
-            className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-          />
-          <textarea
-            placeholder={"1x Sol Ring\n1x Command Tower\n..."}
-            value={importText}
-            onChange={e => setImportText(e.target.value)}
-            rows={5}
-            className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary font-mono focus:outline-none focus:border-accent-blue/50 transition-all resize-none"
-          />
-        </>
-      )}
-      <button onClick={handleImport} disabled={importing}
-        className="w-full px-4 py-2 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors disabled:opacity-50">
-        {importing ? <Spinner size="sm" /> : 'Import'}
-      </button>
-    </div>
-  )
-}
-
-// ── Main Batch Sim Page ───────────────────────────────────────
-export function BatchSimPage() {
-  const [decks, setDecks] = useState<LabDeck[]>([])
-  const [precons, setPrecons] = useState<PreconDeck[]>([])
-  const [selected, setSelected] = useState<Set<string>>(new Set())
-  const [games, setGames] = useState(100)
-  const [status, setStatus] = useState<LabStatus | null>(null)
-  const [result, setResult] = useState<LabResult | null>(null)
-  const [history, setHistory] = useState<LabHistoryEntry[]>([])
-  const [loading, setLoading] = useState(true)
-  const [starting, setStarting] = useState(false)
-  const [error, setError] = useState<string | null>(null)
-  const [showHistory, setShowHistory] = useState(false)
-
-  async function fetchDecks() {
-    try {
-      const [d, p] = await Promise.all([labApi.getLabDecks(), labApi.getPrecons()])
-      setDecks(d)
-      setPrecons(p)
-    } catch { /* ignore */ }
-    setLoading(false)
-  }
-
-  useEffect(() => {
-    fetchDecks()
-    labApi.getLabStatus().then(setStatus).catch(() => {})
-    labApi.getLabHistory().then(setHistory).catch(() => {})
-  }, [])
-
-  // Poll while running
-  usePolling(async () => {
-    try {
-      const s = await labApi.getLabStatus()
-      setStatus(s)
-      if (!s.running && s.run_id) {
-        const r = await labApi.getLabResult()
-        setResult(r)
-        labApi.getLabHistory().then(setHistory).catch(() => {})
-      }
-    } catch { /* ignore */ }
-  }, 2000, status?.running || false)
-
-  function toggleDeck(name: string) {
-    setSelected(prev => {
-      const next = new Set(prev)
-      if (next.has(name)) next.delete(name)
-      else next.add(name)
-      return next
-    })
-  }
-
-  async function handleStart() {
-    if (selected.size < 2) { setError('Select at least 2 decks'); return }
-    setStarting(true)
-    setError(null)
-    setResult(null)
-    try {
-      await labApi.startBatchSim({ decks: [...selected], games })
-      const s = await labApi.getLabStatus()
-      setStatus(s)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Failed to start')
-    }
-    setStarting(false)
-  }
-
-  async function handleInstallPrecon(name: string) {
-    try {
-      await labApi.installPrecon(name)
-      fetchDecks()
-    } catch { /* ignore */ }
-  }
-
-  return (
-    <div className="p-6 space-y-5">
-      <div>
-        <h1 className="text-2xl font-bold text-text-primary flex items-center gap-3">
-          <FlaskConical className="w-6 h-6 text-accent-teal" />
-          Batch Simulator
-        </h1>
-        <p className="text-sm text-text-secondary mt-0.5">Run mass simulations between decks</p>
-      </div>
-
-      <div className="flex gap-5">
-        {/* Left sidebar: deck selection + import */}
-        <div className="w-72 flex-shrink-0 space-y-4">
-          {loading ? (
-            <div className="flex items-center justify-center h-32"><Spinner size="md" className="text-accent-blue" /></div>
-          ) : (
-            <DeckSelector
-              decks={decks}
-              selected={selected}
-              onToggle={toggleDeck}
-              precons={precons}
-              onInstallPrecon={handleInstallPrecon}
-            />
-          )}
-          <ImportPanel onImported={fetchDecks} />
-        </div>
-
-        {/* Main content */}
-        <div className="flex-1 space-y-5">
-          {/* Config + Start */}
-          <div className="bg-bg-secondary rounded-xl border border-border-primary p-5">
-            <div className="flex items-center gap-4">
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Games</label>
-                <input
-                  type="number"
-                  min={10}
-                  max={10000}
-                  step={10}
-                  value={games}
-                  onChange={e => setGames(Number(e.target.value))}
-                  className="mt-1 w-28 px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all"
-                />
-              </div>
-              <div className="flex-1">
-                <p className="text-xs text-text-tertiary">Selected: {selected.size} decks</p>
-              </div>
-              {status?.running ? (
-                <div className="flex items-center gap-3">
-                  <div className="flex items-center gap-2">
-                    <Spinner size="sm" className="text-accent-blue" />
-                    <span className="text-sm text-text-secondary">
-                      {status.games_completed} / {status.total_games} games
-                    </span>
-                  </div>
-                  <div className="w-48 h-2 bg-bg-tertiary rounded-full overflow-hidden">
-                    <div
-                      className="h-full bg-accent-blue rounded-full transition-all"
-                      style={{ width: `${status.total_games ? (status.games_completed / status.total_games) * 100 : 0}%` }}
-                    />
-                  </div>
-                </div>
-              ) : (
-                <button onClick={handleStart} disabled={starting || selected.size < 2}
-                  className="flex items-center gap-2 px-5 py-2.5 bg-accent-teal/15 text-accent-teal text-sm font-semibold rounded-lg hover:bg-accent-teal/25 border border-accent-teal/30 transition-colors disabled:opacity-50">
-                  {starting ? <Spinner size="sm" /> : <Play className="w-4 h-4" />}
-                  Start Simulation
-                </button>
-              )}
-            </div>
-            {error && (
-              <div className="mt-3 flex items-center gap-2 px-4 py-2 bg-status-error/10 border border-status-error/30 rounded-lg text-sm text-status-error">
-                <AlertCircle className="w-4 h-4" />{error}
-              </div>
-            )}
-          </div>
-
-          {/* Results */}
-          {result && (
-            <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 space-y-4 animate-fade-in">
-              <div className="flex items-center justify-between">
-                <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-                  <Trophy className="w-4 h-4 text-accent-amber" />
-                  Results
-                </h3>
-                <span className="text-xs text-text-tertiary">{result.total_games} games · {new Date(result.timestamp).toLocaleString()}</span>
-              </div>
-              <ResultsChart result={result} />
-              <div className="overflow-x-auto">
-                <table className="w-full text-sm">
-                  <thead>
-                    <tr className="border-b border-border-primary">
-                      <th className="px-3 py-2 text-left text-xs text-text-tertiary font-medium uppercase tracking-wider">Deck</th>
-                      <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium uppercase tracking-wider">Wins</th>
-                      <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium uppercase tracking-wider">Games</th>
-                      <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium uppercase tracking-wider">Win Rate</th>
-                      <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium uppercase tracking-wider">Avg Turns</th>
-                    </tr>
-                  </thead>
-                  <tbody className="divide-y divide-border-primary">
-                    {result.decks.sort((a, b) => b.win_rate - a.win_rate).map((d, i) => (
-                      <tr key={d.name} className="hover:bg-bg-hover transition-colors">
-                        <td className="px-3 py-2.5 flex items-center gap-2">
-                          {i === 0 && <Trophy className="w-3.5 h-3.5 text-accent-amber" />}
-                          <span className="font-medium text-text-primary">{d.name}</span>
-                        </td>
-                        <td className="px-3 py-2.5 text-right text-text-secondary">{d.wins}</td>
-                        <td className="px-3 py-2.5 text-right text-text-secondary">{d.games}</td>
-                        <td className="px-3 py-2.5 text-right font-semibold text-accent-blue">{(d.win_rate * 100).toFixed(1)}%</td>
-                        <td className="px-3 py-2.5 text-right text-text-secondary">{d.avg_turns.toFixed(1)}</td>
-                      </tr>
-                    ))}
-                  </tbody>
-                </table>
-              </div>
-            </div>
-          )}
-
-          {/* History */}
-          <div>
-            <button onClick={() => setShowHistory(!showHistory)}
-              className="flex items-center gap-2 text-sm text-text-secondary hover:text-text-primary transition-colors">
-              <History className="w-4 h-4" />
-              Run History ({history.length})
-              <ChevronRight className={`w-3.5 h-3.5 transition-transform ${showHistory ? 'rotate-90' : ''}`} />
-            </button>
-            {showHistory && history.length > 0 && (
-              <div className="mt-3 space-y-2 animate-fade-in">
-                {history.map(h => (
-                  <div key={h.run_id} className="flex items-center gap-4 px-4 py-3 bg-bg-secondary rounded-lg border border-border-primary">
-                    <Clock className="w-4 h-4 text-text-tertiary" />
-                    <div className="flex-1">
-                      <p className="text-sm text-text-primary">{h.decks.join(' vs ')}</p>
-                      <p className="text-xs text-text-tertiary">{new Date(h.timestamp).toLocaleString()} · {h.total_games} games</p>
-                    </div>
-                  </div>
-                ))}
-              </div>
-            )}
-          </div>
-        </div>
-      </div>
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/pages/CoachPage.tsx

@@ -1,949 +0,0 @@
-import { useState, useEffect, useRef, useCallback } from 'react'
-import {
-  GraduationCap, MessageSquare, Send, Sparkles, AlertCircle, X, Check,
-  ChevronRight, ChevronDown, Download, Settings2, Search, Zap,
-  Minus, Plus, History, ArrowRightLeft, Lightbulb, DollarSign, Loader2,
-  ClipboardList, Brain, BarChart3
-} from 'lucide-react'
-import { Spinner, StatusBadge, EmptyState } from '../components/common'
-import { coachApi } from '../api'
-import type {
-  CoachStatus, CoachDeck, CoachSession, CoachSessionSummary,
-  CoachMessage, CoachGoals, CoachApplyResult, CoachCardLikeResult
-} from '../types'
-
-// ════════════════════════════════════════════════════════════
-// Goals Config Panel
-// ════════════════════════════════════════════════════════════
-function GoalsPanel({
-  goals, onChange, collapsed, onToggle
-}: {
-  goals: CoachGoals
-  onChange: (g: CoachGoals) => void
-  collapsed: boolean
-  onToggle: () => void
-}) {
-  const strategies = ['aggro', 'control', 'combo', 'midrange', 'stax', 'voltron', 'aristocrats', 'tokens']
-  const budgets = [
-    { value: 'budget', label: 'Budget', desc: 'Under $5/card' },
-    { value: 'medium', label: 'Medium', desc: 'Under $20/card' },
-    { value: 'no-limit', label: 'No Limit', desc: 'Any price' },
-  ]
-  const focusOptions = ['ramp', 'card draw', 'removal', 'protection', 'threats', 'mana base', 'combos', 'synergy']
-
-  return (
-    <div className="bg-bg-secondary rounded-xl border border-border-primary">
-      <button
-        onClick={onToggle}
-        className="w-full flex items-center gap-2 px-4 py-3 text-left hover:bg-bg-hover transition-colors rounded-xl"
-      >
-        <Settings2 className="w-4 h-4 text-accent-teal" />
-        <span className="text-sm font-medium text-text-primary flex-1">Coaching Goals</span>
-        {collapsed ? <ChevronRight className="w-4 h-4 text-text-tertiary" /> : <ChevronDown className="w-4 h-4 text-text-tertiary" />}
-      </button>
-
-      {!collapsed && (
-        <div className="px-4 pb-4 space-y-4 border-t border-border-primary pt-3">
-          {/* Power Level Slider */}
-          <div>
-            <label className="text-xs font-medium text-text-secondary mb-1 block">
-              Power Level: {goals.targetPowerLevel ?? 'Any'}
-            </label>
-            <input
-              type="range" min={1} max={10}
-              value={goals.targetPowerLevel ?? 5}
-              onChange={e => onChange({ ...goals, targetPowerLevel: parseInt(e.target.value) })}
-              className="w-full accent-accent-teal"
-            />
-            <div className="flex justify-between text-[10px] text-text-tertiary">
-              <span>Casual</span><span>Focused</span><span>cEDH</span>
-            </div>
-          </div>
-
-          {/* Strategy */}
-          <div>
-            <label className="text-xs font-medium text-text-secondary mb-1.5 block">Strategy Focus</label>
-            <div className="flex flex-wrap gap-1.5">
-              {strategies.map(s => (
-                <button
-                  key={s}
-                  onClick={() => onChange({ ...goals, metaFocus: goals.metaFocus === s ? null : s })}
-                  className={`px-2.5 py-1 text-xs rounded-full border transition-colors ${
-                    goals.metaFocus === s
-                      ? 'bg-accent-teal/20 border-accent-teal/40 text-accent-teal'
-                      : 'border-border-primary text-text-tertiary hover:border-border-secondary'
-                  }`}
-                >
-                  {s}
-                </button>
-              ))}
-            </div>
-          </div>
-
-          {/* Budget */}
-          <div>
-            <label className="text-xs font-medium text-text-secondary mb-1.5 block">Budget</label>
-            <div className="grid grid-cols-3 gap-2">
-              {budgets.map(b => (
-                <button
-                  key={b.value}
-                  onClick={() => onChange({ ...goals, budget: goals.budget === b.value ? null : b.value })}
-                  className={`px-3 py-2 text-xs rounded-lg border transition-colors ${
-                    goals.budget === b.value
-                      ? 'bg-accent-teal/20 border-accent-teal/40 text-accent-teal'
-                      : 'border-border-primary text-text-tertiary hover:border-border-secondary'
-                  }`}
-                >
-                  <div className="font-medium">{b.label}</div>
-                  <div className="text-[10px] opacity-60">{b.desc}</div>
-                </button>
-              ))}
-            </div>
-          </div>
-
-          {/* Focus Areas */}
-          <div>
-            <label className="text-xs font-medium text-text-secondary mb-1.5 block">Focus Areas</label>
-            <div className="flex flex-wrap gap-1.5">
-              {focusOptions.map(f => {
-                const active = (goals.focusAreas || []).includes(f)
-                return (
-                  <button
-                    key={f}
-                    onClick={() => {
-                      const areas = goals.focusAreas || []
-                      onChange({
-                        ...goals,
-                        focusAreas: active ? areas.filter(a => a !== f) : [...areas, f]
-                      })
-                    }}
-                    className={`px-2.5 py-1 text-xs rounded-full border transition-colors ${
-                      active
-                        ? 'bg-accent-blue/20 border-accent-blue/40 text-accent-blue'
-                        : 'border-border-primary text-text-tertiary hover:border-border-secondary'
-                    }`}
-                  >
-                    {f}
-                  </button>
-                )
-              })}
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ════════════════════════════════════════════════════════════
-// Session View — Shows coaching results with apply functionality
-// ════════════════════════════════════════════════════════════
-function SessionView({
-  session, deckId, onClose, onApplied
-}: {
-  session: CoachSession
-  deckId: number
-  onClose: () => void
-  onApplied?: () => void
-}) {
-  const [selectedCuts, setSelectedCuts] = useState<Set<string>>(new Set())
-  const [selectedAdds, setSelectedAdds] = useState<Set<string>>(new Set())
-  const [applying, setApplying] = useState(false)
-  const [applyResult, setApplyResult] = useState<CoachApplyResult | null>(null)
-
-  const toggleCut = (name: string) => {
-    const s = new Set(selectedCuts)
-    s.has(name) ? s.delete(name) : s.add(name)
-    setSelectedCuts(s)
-  }
-  const toggleAdd = (name: string) => {
-    const s = new Set(selectedAdds)
-    s.has(name) ? s.delete(name) : s.add(name)
-    setSelectedAdds(s)
-  }
-
-  const handleApply = async () => {
-    if (selectedCuts.size === 0 && selectedAdds.size === 0) return
-    setApplying(true)
-    try {
-      const result = await coachApi.applyCoachSuggestions(
-        session.sessionId, deckId,
-        [...selectedCuts], [...selectedAdds]
-      )
-      setApplyResult(result)
-      onApplied?.()
-    } catch (e) {
-      console.error('Apply failed:', e)
-    }
-    setApplying(false)
-  }
-
-  return (
-    <div className="space-y-5">
-      <div className="flex items-center justify-between">
-        <div>
-          <h3 className="text-lg font-semibold text-text-primary">Coaching Session</h3>
-          <p className="text-xs text-text-tertiary">
-            {new Date(session.timestamp).toLocaleString()} · {session.modelUsed}
-            {session.promptTokens > 0 && ` · ${session.promptTokens + session.completionTokens} tokens`}
-          </p>
-        </div>
-        <button onClick={onClose} className="p-1.5 rounded-lg hover:bg-bg-hover text-text-tertiary">
-          <X className="w-4 h-4" />
-        </button>
-      </div>
-
-      {/* Summary */}
-      {session.summary && (
-        <div className="bg-bg-secondary rounded-xl border border-border-primary p-4">
-          <h4 className="text-xs font-medium text-text-secondary mb-2 flex items-center gap-1.5">
-            <Brain className="w-3.5 h-3.5" /> Summary
-          </h4>
-          <p className="text-sm text-text-primary leading-relaxed">{session.summary}</p>
-        </div>
-      )}
-
-      {/* Heuristic Hints */}
-      {session.heuristicHints?.length > 0 && (
-        <div className="bg-accent-amber/5 rounded-xl border border-accent-amber/20 p-4">
-          <h4 className="text-xs font-medium text-accent-amber mb-2 flex items-center gap-1.5">
-            <Lightbulb className="w-3.5 h-3.5" /> Strategic Tips
-          </h4>
-          <ul className="space-y-1.5">
-            {session.heuristicHints.map((h, i) => (
-              <li key={i} className="text-sm text-text-primary flex items-start gap-2">
-                <span className="text-accent-amber mt-0.5">•</span> {h}
-              </li>
-            ))}
-          </ul>
-        </div>
-      )}
-
-      {/* Mana Base Advice */}
-      {session.manaBaseAdvice && (
-        <div className="bg-accent-blue/5 rounded-xl border border-accent-blue/20 p-4">
-          <h4 className="text-xs font-medium text-accent-blue mb-2 flex items-center gap-1.5">
-            <BarChart3 className="w-3.5 h-3.5" /> Mana Base
-          </h4>
-          <p className="text-sm text-text-primary">{session.manaBaseAdvice}</p>
-        </div>
-      )}
-
-      {/* Suggested Cuts */}
-      {session.suggestedCuts?.length > 0 && (
-        <div>
-          <h4 className="text-sm font-medium text-status-error mb-2 flex items-center gap-1.5">
-            <Minus className="w-4 h-4" /> Suggested Cuts ({session.suggestedCuts.length})
-          </h4>
-          <div className="space-y-2">
-            {session.suggestedCuts.map((cut, i) => (
-              <div
-                key={i}
-                onClick={() => toggleCut(cut.cardName)}
-                className={`flex items-start gap-3 p-3 rounded-lg border cursor-pointer transition-colors ${
-                  selectedCuts.has(cut.cardName)
-                    ? 'bg-status-error/10 border-status-error/30'
-                    : 'bg-bg-secondary border-border-primary hover:border-border-secondary'
-                }`}
-              >
-                <div className={`mt-0.5 w-4 h-4 rounded border flex items-center justify-center flex-shrink-0 ${
-                  selectedCuts.has(cut.cardName)
-                    ? 'bg-status-error border-status-error text-white'
-                    : 'border-border-secondary'
-                }`}>
-                  {selectedCuts.has(cut.cardName) && <Check className="w-3 h-3" />}
-                </div>
-                <div className="flex-1 min-w-0">
-                  <p className="text-sm font-medium text-text-primary">{cut.cardName}</p>
-                  <p className="text-xs text-text-secondary mt-0.5">{cut.reason}</p>
-                  {cut.replacementOptions?.length > 0 && (
-                    <p className="text-[10px] text-text-tertiary mt-1">
-                      Replace with: {cut.replacementOptions.join(', ')}
-                    </p>
-                  )}
-                </div>
-              </div>
-            ))}
-          </div>
-        </div>
-      )}
-
-      {/* Suggested Adds */}
-      {session.suggestedAdds?.length > 0 && (
-        <div>
-          <h4 className="text-sm font-medium text-status-success mb-2 flex items-center gap-1.5">
-            <Plus className="w-4 h-4" /> Suggested Adds ({session.suggestedAdds.length})
-          </h4>
-          <div className="space-y-2">
-            {session.suggestedAdds.map((add, i) => (
-              <div
-                key={i}
-                onClick={() => toggleAdd(add.cardName)}
-                className={`flex items-start gap-3 p-3 rounded-lg border cursor-pointer transition-colors ${
-                  selectedAdds.has(add.cardName)
-                    ? 'bg-status-success/10 border-status-success/30'
-                    : 'bg-bg-secondary border-border-primary hover:border-border-secondary'
-                }`}
-              >
-                <div className={`mt-0.5 w-4 h-4 rounded border flex items-center justify-center flex-shrink-0 ${
-                  selectedAdds.has(add.cardName)
-                    ? 'bg-status-success border-status-success text-white'
-                    : 'border-border-secondary'
-                }`}>
-                  {selectedAdds.has(add.cardName) && <Check className="w-3 h-3" />}
-                </div>
-                <div className="flex-1 min-w-0">
-                  <div className="flex items-center gap-2">
-                    <p className="text-sm font-medium text-text-primary">{add.cardName}</p>
-                    {add.role && (
-                      <span className="px-1.5 py-0.5 text-[10px] bg-accent-blue/15 text-accent-blue rounded">
-                        {add.role}
-                      </span>
-                    )}
-                  </div>
-                  <p className="text-xs text-text-secondary mt-0.5">{add.reason}</p>
-                  {add.synergyWith?.length > 0 && (
-                    <p className="text-[10px] text-text-tertiary mt-1">
-                      Synergy: {add.synergyWith.join(', ')}
-                    </p>
-                  )}
-                </div>
-              </div>
-            ))}
-          </div>
-        </div>
-      )}
-
-      {/* Apply Button */}
-      {!applyResult && (selectedCuts.size > 0 || selectedAdds.size > 0) && (
-        <div className="sticky bottom-0 bg-bg-primary/95 backdrop-blur-sm border-t border-border-primary py-3 -mx-6 px-6">
-          <button
-            onClick={handleApply}
-            disabled={applying}
-            className="w-full flex items-center justify-center gap-2 px-4 py-2.5 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors disabled:opacity-50"
-          >
-            {applying ? <Spinner size="sm" /> : <ArrowRightLeft className="w-4 h-4" />}
-            Apply {selectedCuts.size > 0 && `${selectedCuts.size} cuts`}
-            {selectedCuts.size > 0 && selectedAdds.size > 0 && ' + '}
-            {selectedAdds.size > 0 && `${selectedAdds.size} adds`} to Deck
-          </button>
-        </div>
-      )}
-
-      {/* Apply Results */}
-      {applyResult && (
-        <div className="bg-status-success/5 rounded-xl border border-status-success/20 p-4">
-          <h4 className="text-sm font-medium text-status-success mb-2 flex items-center gap-1.5">
-            <Check className="w-4 h-4" /> Changes Applied
-          </h4>
-          <p className="text-sm text-text-primary">
-            {applyResult.total_cuts > 0 && `Removed ${applyResult.total_cuts} card(s). `}
-            {applyResult.total_adds > 0 && `Added ${applyResult.total_adds} card(s). `}
-            {applyResult.errors.length > 0 && `${applyResult.errors.length} error(s).`}
-          </p>
-          {applyResult.errors.length > 0 && (
-            <ul className="mt-2 text-xs text-status-error">
-              {applyResult.errors.map((e, i) => (
-                <li key={i}>{e.name}: {e.error}</li>
-              ))}
-            </ul>
-          )}
-        </div>
-      )}
-
-      {/* Raw Explanation */}
-      {session.rawTextExplanation && (
-        <details className="group">
-          <summary className="text-xs text-text-tertiary cursor-pointer hover:text-text-secondary">
-            Full analysis...
-          </summary>
-          <p className="mt-2 text-sm text-text-secondary whitespace-pre-wrap leading-relaxed bg-bg-secondary rounded-lg p-4 border border-border-primary">
-            {session.rawTextExplanation}
-          </p>
-        </details>
-      )}
-    </div>
-  )
-}
-
-// ════════════════════════════════════════════════════════════
-// Cards Like Search
-// ════════════════════════════════════════════════════════════
-function CardsLikePanel() {
-  const [query, setQuery] = useState('')
-  const [results, setResults] = useState<CoachCardLikeResult[]>([])
-  const [searching, setSearching] = useState(false)
-
-  const handleSearch = async () => {
-    if (!query.trim()) return
-    setSearching(true)
-    try {
-      const data = await coachApi.searchCardsLike(query.trim(), undefined, 12)
-      setResults(data.results)
-    } catch { /* ignore */ }
-    setSearching(false)
-  }
-
-  return (
-    <div className="space-y-4">
-      <div className="flex gap-2">
-        <div className="relative flex-1">
-          <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-text-tertiary" />
-          <input
-            value={query}
-            onChange={e => setQuery(e.target.value)}
-            onKeyDown={e => e.key === 'Enter' && handleSearch()}
-            placeholder="Enter a card name..."
-            className="w-full pl-9 pr-3 py-2 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue"
-          />
-        </div>
-        <button
-          onClick={handleSearch}
-          disabled={searching || !query.trim()}
-          className="px-4 py-2 bg-accent-teal/15 text-accent-teal text-sm font-medium rounded-lg hover:bg-accent-teal/25 border border-accent-teal/30 transition-colors disabled:opacity-50"
-        >
-          {searching ? <Spinner size="sm" /> : 'Search'}
-        </button>
-      </div>
-
-      {results.length > 0 && (
-        <div className="grid grid-cols-1 md:grid-cols-2 gap-2">
-          {results.map((card, i) => (
-            <div key={i} className="flex items-start gap-3 p-3 bg-bg-secondary rounded-lg border border-border-primary">
-              <div className="flex-1 min-w-0">
-                <div className="flex items-center gap-2">
-                  <p className="text-sm font-medium text-text-primary truncate">{card.name}</p>
-                  <span className="text-[10px] text-text-tertiary whitespace-nowrap">
-                    {(card.similarity * 100).toFixed(0)}%
-                  </span>
-                </div>
-                <p className="text-[11px] text-text-secondary mt-0.5">{card.types}</p>
-                {card.text && (
-                  <p className="text-[10px] text-text-tertiary mt-1 line-clamp-2">{card.text}</p>
-                )}
-                <div className="flex items-center gap-3 mt-1.5 text-[10px]">
-                  {card.tcg_price != null && (
-                    <span className="text-accent-amber flex items-center gap-0.5">
-                      <DollarSign className="w-2.5 h-2.5" />{card.tcg_price.toFixed(2)}
-                    </span>
-                  )}
-                  {card.owned_qty > 0 && (
-                    <span className="text-status-success">Owned: {card.owned_qty}</span>
-                  )}
-                  <span className="text-text-tertiary">MV: {card.mana_value}</span>
-                </div>
-              </div>
-              {card.image_url && (
-                <img src={card.image_url} alt={card.name} className="w-14 h-auto rounded" />
-              )}
-            </div>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ════════════════════════════════════════════════════════════
-// Live Chat View
-// ════════════════════════════════════════════════════════════
-function LiveChat({
-  deckId, deckName, goals, onClose
-}: {
-  deckId: string
-  deckName: string
-  goals: CoachGoals
-  onClose: () => void
-}) {
-  const [messages, setMessages] = useState<CoachMessage[]>([])
-  const [input, setInput] = useState('')
-  const [streaming, setStreaming] = useState(false)
-  const [streamText, setStreamText] = useState('')
-  const messagesEndRef = useRef<HTMLDivElement>(null)
-  const abortRef = useRef<AbortController | null>(null)
-
-  useEffect(() => {
-    messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' })
-  }, [messages, streamText])
-
-  const sendMessage = async () => {
-    if (!input.trim() || streaming) return
-    const userMsg: CoachMessage = { role: 'user', content: input.trim() }
-    const allMessages = [...messages, userMsg]
-    setMessages(allMessages)
-    setInput('')
-    setStreaming(true)
-    setStreamText('')
-
-    const goalsDict = goals.targetPowerLevel || goals.metaFocus || goals.budget || (goals.focusAreas || []).length > 0
-      ? {
-          targetPowerLevel: goals.targetPowerLevel,
-          metaFocus: goals.metaFocus,
-          budget: goals.budget,
-          focusAreas: goals.focusAreas,
-        }
-      : undefined
-
-    try {
-      abortRef.current = new AbortController()
-      const fullText = await coachApi.coachChatStream(
-        deckId,
-        allMessages.map(m => ({ role: m.role, content: m.content })),
-        goalsDict,
-        (text) => setStreamText(text),
-        abortRef.current.signal
-      )
-
-      setMessages(prev => [...prev, { role: 'assistant', content: fullText }])
-      setStreamText('')
-    } catch (e) {
-      if ((e as Error).name !== 'AbortError') {
-        // Fallback to non-streaming
-        try {
-          const resp = await coachApi.coachChat(
-            deckId,
-            allMessages.map(m => ({ role: m.role, content: m.content })),
-            goalsDict
-          )
-          setMessages(prev => [...prev, { role: 'assistant', content: resp.content }])
-        } catch (e2) {
-          setMessages(prev => [...prev, {
-            role: 'assistant',
-            content: `Error: ${(e2 as Error).message || 'Failed to get response'}`
-          }])
-        }
-      }
-      setStreamText('')
-    }
-    setStreaming(false)
-  }
-
-  return (
-    <div className="flex flex-col h-[calc(100vh-180px)]">
-      {/* Header */}
-      <div className="flex items-center justify-between px-4 py-3 border-b border-border-primary">
-        <div>
-          <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-            <MessageSquare className="w-4 h-4 text-accent-blue" />
-            Chat: {deckName}
-          </h3>
-          <p className="text-[10px] text-text-tertiary">
-            {goals.metaFocus && `${goals.metaFocus} · `}
-            {goals.targetPowerLevel && `Power ${goals.targetPowerLevel} · `}
-            {goals.budget && `${goals.budget}`}
-          </p>
-        </div>
-        <button onClick={onClose} className="p-1.5 rounded-lg hover:bg-bg-hover text-text-tertiary">
-          <X className="w-4 h-4" />
-        </button>
-      </div>
-
-      {/* Messages */}
-      <div className="flex-1 overflow-y-auto p-4 space-y-3">
-        {messages.length === 0 && !streaming && (
-          <div className="text-center py-12">
-            <GraduationCap className="w-10 h-10 text-text-tertiary mx-auto mb-3" />
-            <p className="text-sm text-text-secondary">Ask your coach anything about this deck.</p>
-            <div className="mt-4 flex flex-wrap gap-2 justify-center">
-              {[
-                'What should I cut?',
-                'How is my mana curve?',
-                'Suggest win conditions',
-                'Rate my removal suite',
-              ].map(q => (
-                <button
-                  key={q}
-                  onClick={() => { setInput(q); }}
-                  className="px-3 py-1.5 text-xs bg-bg-secondary border border-border-primary rounded-full text-text-secondary hover:text-text-primary hover:border-border-secondary transition-colors"
-                >
-                  {q}
-                </button>
-              ))}
-            </div>
-          </div>
-        )}
-
-        {messages.map((msg, i) => (
-          <div key={i} className={`flex ${msg.role === 'user' ? 'justify-end' : 'justify-start'}`}>
-            <div className={`max-w-[85%] px-4 py-3 rounded-xl text-sm whitespace-pre-wrap leading-relaxed ${
-              msg.role === 'user'
-                ? 'bg-accent-blue/15 text-text-primary border border-accent-blue/20'
-                : 'bg-bg-secondary text-text-primary border border-border-primary'
-            }`}>
-              {msg.content}
-            </div>
-          </div>
-        ))}
-
-        {/* Streaming indicator */}
-        {streaming && (
-          <div className="flex justify-start">
-            <div className="max-w-[85%] px-4 py-3 rounded-xl text-sm whitespace-pre-wrap leading-relaxed bg-bg-secondary text-text-primary border border-border-primary">
-              {streamText || (
-                <span className="flex items-center gap-2 text-text-tertiary">
-                  <Loader2 className="w-3.5 h-3.5 animate-spin" />
-                  Thinking...
-                </span>
-              )}
-            </div>
-          </div>
-        )}
-        <div ref={messagesEndRef} />
-      </div>
-
-      {/* Input */}
-      <div className="border-t border-border-primary p-3">
-        <div className="flex gap-2">
-          <input
-            value={input}
-            onChange={e => setInput(e.target.value)}
-            onKeyDown={e => e.key === 'Enter' && !e.shiftKey && sendMessage()}
-            placeholder="Ask the coach..."
-            disabled={streaming}
-            className="flex-1 px-3 py-2 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue disabled:opacity-50"
-          />
-          <button
-            onClick={sendMessage}
-            disabled={streaming || !input.trim()}
-            className="px-3 py-2 bg-accent-blue text-white rounded-lg hover:bg-accent-blue-hover transition-colors disabled:opacity-50"
-          >
-            <Send className="w-4 h-4" />
-          </button>
-        </div>
-      </div>
-    </div>
-  )
-}
-
-// ════════════════════════════════════════════════════════════
-// Main Coach Page
-// ════════════════════════════════════════════════════════════
-type Tab = 'decks' | 'chat' | 'session' | 'history' | 'search'
-
-export function CoachPage() {
-  const [status, setStatus] = useState<CoachStatus | null>(null)
-  const [decks, setDecks] = useState<CoachDeck[]>([])
-  const [sessions, setSessions] = useState<CoachSessionSummary[]>([])
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-
-  // UI state
-  const [tab, setTab] = useState<Tab>('decks')
-  const [selectedDeck, setSelectedDeck] = useState<CoachDeck | null>(null)
-  const [selectedSession, setSelectedSession] = useState<CoachSession | null>(null)
-  const [goals, setGoals] = useState<CoachGoals>({})
-  const [goalsCollapsed, setGoalsCollapsed] = useState(true)
-  const [generatingReport, setGeneratingReport] = useState(false)
-  const [runningSession, setRunningSession] = useState<number | null>(null)
-  const [downloadingEmbeddings, setDownloadingEmbeddings] = useState(false)
-
-  const loadData = useCallback(async () => {
-    try {
-      const [s, d, sess] = await Promise.all([
-        coachApi.getCoachStatus(),
-        coachApi.getCoachDecks().catch(() => []),
-        coachApi.getCoachSessions().catch(() => ({ sessions: [] })),
-      ])
-      setStatus(s)
-      setDecks(Array.isArray(d) ? d : [])
-      setSessions(Array.isArray(sess) ? sess : (sess as { sessions: CoachSessionSummary[] }).sessions || [])
-    } catch { /* ignore */ }
-    setLoading(false)
-  }, [])
-
-  useEffect(() => { loadData() }, [loadData])
-
-  const handleDownloadEmbeddings = async () => {
-    setDownloadingEmbeddings(true)
-    try {
-      await coachApi.downloadEmbeddings()
-      const s = await coachApi.getCoachStatus()
-      setStatus(s)
-    } catch { /* ignore */ }
-    setDownloadingEmbeddings(false)
-  }
-
-  const handleGenerateReports = async () => {
-    setGeneratingReport(true)
-    setError(null)
-    try {
-      await coachApi.generateReport()
-      await loadData()
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Report generation failed')
-    }
-    setGeneratingReport(false)
-  }
-
-  const handleRunSession = async (deck: CoachDeck) => {
-    setRunningSession(deck.deck_id)
-    setError(null)
-    try {
-      const deckSlug = deck.deck_name.toLowerCase().replace(/\s+/g, '-')
-      const goalsDict = goals.targetPowerLevel || goals.metaFocus || goals.budget || (goals.focusAreas || []).length > 0
-        ? goals : undefined
-      const session = await coachApi.runCoachSession(deckSlug, goalsDict as Record<string, unknown>)
-      setSelectedSession(session)
-      setSelectedDeck(deck)
-      setTab('session')
-      await loadData()
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Session failed')
-    }
-    setRunningSession(null)
-  }
-
-  const handleOpenChat = (deck: CoachDeck) => {
-    setSelectedDeck(deck)
-    setTab('chat')
-  }
-
-  const handleViewSession = async (sessionId: string) => {
-    try {
-      const s = await coachApi.getCoachSession(sessionId)
-      setSelectedSession(s)
-      // Find the matching deck
-      const matchDeck = decks.find(d =>
-        d.deck_name.toLowerCase().replace(/\s+/g, '-') === s.deckId.toLowerCase() ||
-        d.deck_name.toLowerCase() === s.deckId.toLowerCase()
-      )
-      if (matchDeck) setSelectedDeck(matchDeck)
-      setTab('session')
-    } catch { /* ignore */ }
-  }
-
-  if (loading) {
-    return (
-      <div className="p-6 flex items-center justify-center h-64">
-        <Spinner size="lg" className="text-accent-blue" />
-      </div>
-    )
-  }
-
-  return (
-    <div className="p-6 space-y-5">
-      {/* Header */}
-      <div className="flex items-center justify-between">
-        <div>
-          <h1 className="text-2xl font-bold text-text-primary flex items-center gap-3">
-            <GraduationCap className="w-6 h-6 text-accent-amber" />
-            Deck Coach
-          </h1>
-          <p className="text-sm text-text-secondary mt-0.5">
-            AI-powered deck analysis, coaching, and live chat
-          </p>
-        </div>
-      </div>
-
-      {/* Status Bar */}
-      <div className="flex items-center gap-3 flex-wrap">
-        <StatusBadge
-          variant={status?.llmConnected ? 'success' : 'warning'}
-          label={status?.llmConnected ? `LLM: ${status.llmModel || 'Connected'}` : 'LLM: Disconnected'}
-        />
-        <StatusBadge
-          variant={status?.embeddingsLoaded ? 'success' : 'neutral'}
-          label={status?.embeddingsLoaded ? `${(status.embeddingCards || 0).toLocaleString()} embeddings` : 'No embeddings'}
-        />
-        {status?.deckReportsAvailable != null && status.deckReportsAvailable > 0 && (
-          <StatusBadge variant="success" label={`${status.deckReportsAvailable} reports`} />
-        )}
-        {!status?.embeddingsLoaded && (
-          <button onClick={handleDownloadEmbeddings} disabled={downloadingEmbeddings}
-            className="flex items-center gap-1.5 text-xs text-accent-blue hover:text-accent-blue-hover transition-colors disabled:opacity-50">
-            {downloadingEmbeddings ? <Spinner size="sm" /> : <Download className="w-3 h-3" />}
-            Download Embeddings
-          </button>
-        )}
-      </div>
-
-      {error && (
-        <div className="flex items-center gap-2 px-4 py-2 bg-status-error/10 border border-status-error/30 rounded-lg text-sm text-status-error">
-          <AlertCircle className="w-4 h-4 flex-shrink-0" />{error}
-          <button onClick={() => setError(null)} className="ml-auto"><X className="w-3 h-3" /></button>
-        </div>
-      )}
-
-      {/* Tab Nav */}
-      <div className="flex gap-1 bg-bg-secondary rounded-lg p-1 border border-border-primary">
-        {([
-          { id: 'decks', label: 'Decks', icon: ClipboardList },
-          { id: 'history', label: 'Sessions', icon: History },
-          { id: 'search', label: 'Cards Like', icon: Search },
-        ] as { id: Tab; label: string; icon: typeof ClipboardList }[]).map(t => (
-          <button
-            key={t.id}
-            onClick={() => setTab(t.id)}
-            className={`flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-md transition-colors ${
-              tab === t.id
-                ? 'bg-bg-primary text-text-primary shadow-sm'
-                : 'text-text-tertiary hover:text-text-secondary'
-            }`}
-          >
-            <t.icon className="w-3.5 h-3.5" />
-            {t.label}
-            {t.id === 'history' && sessions.length > 0 && (
-              <span className="text-[10px] bg-bg-tertiary px-1.5 rounded-full">{sessions.length}</span>
-            )}
-          </button>
-        ))}
-        {tab === 'chat' && selectedDeck && (
-          <div className="flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-md bg-bg-primary text-accent-blue shadow-sm">
-            <MessageSquare className="w-3.5 h-3.5" />
-            Chat
-          </div>
-        )}
-        {tab === 'session' && selectedSession && (
-          <div className="flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium rounded-md bg-bg-primary text-accent-amber shadow-sm">
-            <Sparkles className="w-3.5 h-3.5" />
-            Results
-          </div>
-        )}
-      </div>
-
-      {/* Goals Panel (shown when on decks tab) */}
-      {tab === 'decks' && (
-        <GoalsPanel
-          goals={goals}
-          onChange={setGoals}
-          collapsed={goalsCollapsed}
-          onToggle={() => setGoalsCollapsed(!goalsCollapsed)}
-        />
-      )}
-
-      {/* ── Decks Tab ─────────────────────────────────────── */}
-      {tab === 'decks' && (
-        <div className="space-y-4">
-          <div className="flex items-center justify-between">
-            <h2 className="text-sm font-semibold text-text-primary">Your Decks</h2>
-            <button
-              onClick={handleGenerateReports}
-              disabled={generatingReport}
-              className="flex items-center gap-1.5 text-xs text-accent-amber hover:text-accent-amber transition-colors disabled:opacity-50"
-            >
-              {generatingReport ? <Spinner size="sm" /> : <Zap className="w-3 h-3" />}
-              Generate Reports
-            </button>
-          </div>
-
-          {decks.length === 0 ? (
-            <EmptyState
-              icon={GraduationCap}
-              title="No decks available"
-              description="Create decks in the Deck Builder to start coaching."
-            />
-          ) : (
-            <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-3">
-              {decks.map(deck => (
-                <div key={deck.deck_id} className="bg-bg-secondary rounded-xl border border-border-primary p-4 space-y-3">
-                  <div>
-                    <h3 className="text-sm font-semibold text-text-primary">{deck.deck_name}</h3>
-                    <p className="text-xs text-text-secondary">{deck.commander}</p>
-                  </div>
-                  <div className="flex items-center gap-3 text-[10px] text-text-tertiary">
-                    <span>{deck.card_count} cards</span>
-                    {deck.has_report && (
-                      <span className="flex items-center gap-1 text-status-success">
-                        <Check className="w-2.5 h-2.5" /> Report
-                      </span>
-                    )}
-                  </div>
-                  <div className="flex items-center gap-2">
-                    <button
-                      onClick={() => handleRunSession(deck)}
-                      disabled={runningSession === deck.deck_id || !status?.llmConnected}
-                      className="flex-1 flex items-center justify-center gap-1.5 px-3 py-2 bg-accent-amber/15 text-accent-amber text-xs font-medium rounded-lg hover:bg-accent-amber/25 border border-accent-amber/30 transition-colors disabled:opacity-50"
-                    >
-                      {runningSession === deck.deck_id ? <Spinner size="sm" /> : <Sparkles className="w-3 h-3" />}
-                      Analyze
-                    </button>
-                    <button
-                      onClick={() => handleOpenChat(deck)}
-                      disabled={!status?.llmConnected}
-                      className="flex-1 flex items-center justify-center gap-1.5 px-3 py-2 bg-accent-blue/15 text-accent-blue text-xs font-medium rounded-lg hover:bg-accent-blue/25 border border-accent-blue/30 transition-colors disabled:opacity-50"
-                    >
-                      <MessageSquare className="w-3 h-3" />
-                      Chat
-                    </button>
-                  </div>
-                </div>
-              ))}
-            </div>
-          )}
-        </div>
-      )}
-
-      {/* ── Chat Tab ──────────────────────────────────────── */}
-      {tab === 'chat' && selectedDeck && (
-        <LiveChat
-          deckId={selectedDeck.deck_name.toLowerCase().replace(/\s+/g, '-')}
-          deckName={selectedDeck.deck_name}
-          goals={goals}
-          onClose={() => setTab('decks')}
-        />
-      )}
-
-      {/* ── Session Results Tab ───────────────────────────── */}
-      {tab === 'session' && selectedSession && selectedDeck && (
-        <SessionView
-          session={selectedSession}
-          deckId={selectedDeck.deck_id}
-          onClose={() => setTab('decks')}
-          onApplied={() => loadData()}
-        />
-      )}
-
-      {/* ── History Tab ───────────────────────────────────── */}
-      {tab === 'history' && (
-        <div className="space-y-3">
-          <h2 className="text-sm font-semibold text-text-primary">Coaching Sessions</h2>
-          {sessions.length === 0 ? (
-            <EmptyState
-              icon={History}
-              title="No sessions yet"
-              description="Run an analysis on a deck to create your first coaching session."
-            />
-          ) : (
-            <div className="space-y-2">
-              {sessions.map(s => (
-                <button
-                  key={s.sessionId}
-                  onClick={() => handleViewSession(s.sessionId)}
-                  className="w-full flex items-center gap-4 px-4 py-3 bg-bg-secondary rounded-lg border border-border-primary hover:border-border-secondary text-left transition-colors"
-                >
-                  <Sparkles className="w-4 h-4 text-accent-amber flex-shrink-0" />
-                  <div className="flex-1 min-w-0">
-                    <div className="flex items-center gap-2">
-                      <p className="text-sm font-medium text-text-primary">{s.deckId}</p>
-                      <span className="text-[10px] text-text-tertiary">
-                        {s.cutsCount > 0 && `${s.cutsCount} cuts`}
-                        {s.cutsCount > 0 && s.addsCount > 0 && ' · '}
-                        {s.addsCount > 0 && `${s.addsCount} adds`}
-                      </span>
-                    </div>
-                    <p className="text-xs text-text-tertiary mt-0.5 truncate">{s.summary || 'No summary'}</p>
-                    <p className="text-[10px] text-text-tertiary mt-0.5">{new Date(s.timestamp).toLocaleString()}</p>
-                  </div>
-                  <ChevronRight className="w-4 h-4 text-text-tertiary flex-shrink-0" />
-                </button>
-              ))}
-            </div>
-          )}
-        </div>
-      )}
-
-      {/* ── Cards Like Tab ────────────────────────────────── */}
-      {tab === 'search' && (
-        <div className="space-y-4">
-          <div>
-            <h2 className="text-sm font-semibold text-text-primary mb-1">Cards Like This</h2>
-            <p className="text-xs text-text-secondary">
-              Find similar cards using AI embeddings. Search by card name to discover alternatives.
-            </p>
-          </div>
-          <CardsLikePanel />
-        </div>
-      )}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/pages/CollectionPage.tsx

@@ -1,484 +0,0 @@
-import { useState, useEffect, useCallback, useRef } from 'react'
-import {
-  Search, Filter, Upload, Download, Camera, RefreshCw,
-  ChevronLeft, ChevronRight, X, Package, SlidersHorizontal,
-  Plus, Grid3x3, List
-} from 'lucide-react'
-import { Spinner, EmptyState, ManaSymbols, CardImage } from '../components/common'
-import { collectionApi } from '../api'
-import type { CollectionCard, CollectionFilters, SetInfo } from '../types'
-
-// ── Card Detail Modal ─────────────────────────────────────────
-function CardDetailModal({ card, onClose }: { card: CollectionCard; onClose: () => void }) {
-  return (
-    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/70 backdrop-blur-sm" onClick={onClose}>
-      <div
-        className="bg-bg-secondary rounded-xl border border-border-primary shadow-lg max-w-4xl w-full mx-4 max-h-[90vh] overflow-y-auto animate-fade-in"
-        onClick={e => e.stopPropagation()}
-      >
-        <div className="flex items-start justify-between p-5 border-b border-border-primary">
-          <div>
-            <h2 className="text-xl font-bold text-text-primary">{card.name}</h2>
-            <p className="text-sm text-text-secondary mt-0.5">{card.type_line}</p>
-          </div>
-          <button onClick={onClose} className="p-1 rounded hover:bg-bg-hover text-text-tertiary">
-            <X className="w-5 h-5" />
-          </button>
-        </div>
-        <div className="flex flex-col md:flex-row gap-6 p-5">
-          {/* Large card image */}
-          <div className="flex-shrink-0">
-            <CardImage src={card.image_url} alt={card.name} size="xl" />
-          </div>
-          {/* Card info */}
-          <div className="flex-1 space-y-4">
-            <div>
-              <label className="text-xs text-text-tertiary uppercase tracking-wider">Mana Cost</label>
-              <div className="mt-1"><ManaSymbols cost={card.mana_cost} size="md" /></div>
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary uppercase tracking-wider">Oracle Text</label>
-              <p className="mt-1 text-sm text-text-primary whitespace-pre-wrap leading-relaxed">{card.oracle_text}</p>
-            </div>
-            <div className="grid grid-cols-2 gap-4">
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Set</label>
-                <p className="mt-1 text-sm text-text-primary">{card.set_name} ({card.set_code.toUpperCase()})</p>
-              </div>
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Rarity</label>
-                <p className={`mt-1 text-sm font-medium capitalize ${
-                  card.rarity === 'mythic' ? 'text-accent-amber' :
-                  card.rarity === 'rare' ? 'text-accent-amber/80' :
-                  card.rarity === 'uncommon' ? 'text-accent-teal' : 'text-text-secondary'
-                }`}>{card.rarity}</p>
-              </div>
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">CMC</label>
-                <p className="mt-1 text-sm text-text-primary">{card.cmc}</p>
-              </div>
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">EDHREC Rank</label>
-                <p className="mt-1 text-sm text-text-primary">{card.edhrec_rank ?? 'N/A'}</p>
-              </div>
-            </div>
-            <div className="grid grid-cols-2 gap-4">
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Quantity</label>
-                <p className="mt-1 text-sm text-text-primary">{card.quantity} (+ {card.foil_quantity} foil)</p>
-              </div>
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Price</label>
-                <p className="mt-1 text-sm text-accent-teal font-semibold">
-                  ${card.tcg_price?.toFixed(2) ?? '—'}
-                  {card.foil_price ? <span className="text-text-tertiary ml-2">Foil: ${card.foil_price.toFixed(2)}</span> : null}
-                </p>
-              </div>
-            </div>
-          </div>
-        </div>
-      </div>
-    </div>
-  )
-}
-
-// ── Scanner Panel ─────────────────────────────────────────────
-function ScannerPanel({ onCardAdded }: { onCardAdded: () => void }) {
-  const [scanning, setScanning] = useState(false)
-  const [results, setResults] = useState<import('../types').ScanMatch[]>([])
-  const [adding, setAdding] = useState<string | null>(null)
-  const fileRef = useRef<HTMLInputElement>(null)
-
-  async function handleScan(file: File) {
-    setScanning(true)
-    setResults([])
-    try {
-      const res = await collectionApi.scanCard(file)
-      setResults(res.matches || [])
-    } catch {
-      setResults([])
-    }
-    setScanning(false)
-  }
-
-  async function handleAdd(match: import('../types').ScanMatch) {
-    setAdding(match.scryfall_id)
-    try {
-      await collectionApi.addScanResult({
-        name: match.name,
-        set_code: match.set_code,
-        scryfall_id: match.scryfall_id,
-      })
-      onCardAdded()
-    } catch { /* ignore */ }
-    setAdding(null)
-  }
-
-  return (
-    <div className="bg-bg-secondary rounded-xl border border-border-primary p-5">
-      <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2 mb-3">
-        <Camera className="w-4 h-4 text-accent-blue" />
-        Card Scanner
-      </h3>
-      <input
-        ref={fileRef}
-        type="file"
-        accept="image/*"
-        className="hidden"
-        onChange={e => e.target.files?.[0] && handleScan(e.target.files[0])}
-      />
-      <button
-        onClick={() => fileRef.current?.click()}
-        disabled={scanning}
-        className="w-full flex items-center justify-center gap-2 px-4 py-2.5 bg-accent-blue/10 text-accent-blue border border-accent-blue/30 rounded-lg text-sm font-medium hover:bg-accent-blue/20 transition-colors disabled:opacity-50"
-      >
-        {scanning ? <Spinner size="sm" /> : <Camera className="w-4 h-4" />}
-        {scanning ? 'Scanning...' : 'Scan a Card'}
-      </button>
-      {results.length > 0 && (
-        <div className="mt-3 space-y-2 max-h-60 overflow-y-auto">
-          {results.map(m => (
-            <div key={m.scryfall_id} className="flex items-center gap-3 p-2 rounded-lg bg-bg-tertiary">
-              <CardImage src={m.image_url} alt={m.name} size="sm" />
-              <div className="flex-1 min-w-0">
-                <p className="text-sm font-medium text-text-primary truncate">{m.name}</p>
-                <p className="text-xs text-text-tertiary">{m.set_name} — {(m.confidence * 100).toFixed(0)}%</p>
-              </div>
-              <button
-                onClick={() => handleAdd(m)}
-                disabled={adding === m.scryfall_id}
-                className="p-1.5 rounded-lg bg-accent-green/15 text-accent-green hover:bg-accent-green/25 transition-colors"
-              >
-                {adding === m.scryfall_id ? <Spinner size="sm" /> : <Plus className="w-4 h-4" />}
-              </button>
-            </div>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ── Main Collection Page ──────────────────────────────────────
-export function CollectionPage() {
-  const [cards, setCards] = useState<CollectionCard[]>([])
-  const [total, setTotal] = useState(0)
-  const [loading, setLoading] = useState(true)
-  const [sets, setSets] = useState<SetInfo[]>([])
-  const [selectedCard, setSelectedCard] = useState<CollectionCard | null>(null)
-  const [viewMode, setViewMode] = useState<'grid' | 'list'>('grid')
-  const [showFilters, setShowFilters] = useState(false)
-  const [importing, setImporting] = useState(false)
-  const [enriching, setEnriching] = useState(false)
-  const importRef = useRef<HTMLInputElement>(null)
-
-  const [filters, setFilters] = useState<CollectionFilters>({
-    q: '',
-    page: 1,
-    page_size: 48,
-    sort_by: 'name',
-    sort_dir: 'asc',
-  })
-
-  const fetchCards = useCallback(async () => {
-    setLoading(true)
-    try {
-      const res = await collectionApi.searchCollection(filters)
-      setCards(res.cards)
-      setTotal(res.total)
-    } catch { /* ignore */ }
-    setLoading(false)
-  }, [filters])
-
-  useEffect(() => { fetchCards() }, [fetchCards])
-
-  useEffect(() => {
-    collectionApi.getSets().then(setSets).catch(() => {})
-  }, [])
-
-  const totalPages = Math.ceil(total / (filters.page_size || 48))
-
-  function updateFilter(key: keyof CollectionFilters, value: string | number | boolean | undefined) {
-    setFilters(prev => ({ ...prev, [key]: value, page: 1 }))
-  }
-
-  async function handleExport() {
-    const blob = await collectionApi.exportCollection('csv')
-    const url = URL.createObjectURL(blob)
-    const a = document.createElement('a')
-    a.href = url
-    a.download = 'collection.csv'
-    a.click()
-    URL.revokeObjectURL(url)
-  }
-
-  async function handleImport(file: File) {
-    setImporting(true)
-    try {
-      await collectionApi.importCollection(file)
-      fetchCards()
-    } catch { /* ignore */ }
-    setImporting(false)
-  }
-
-  async function handleReEnrich() {
-    setEnriching(true)
-    try {
-      await collectionApi.reEnrichCards()
-      fetchCards()
-    } catch { /* ignore */ }
-    setEnriching(false)
-  }
-
-  return (
-    <div className="p-6 space-y-5">
-      {/* Header */}
-      <div className="flex items-center justify-between">
-        <div>
-          <h1 className="text-2xl font-bold text-text-primary">Collection</h1>
-          <p className="text-sm text-text-secondary mt-0.5">{total.toLocaleString()} cards in your collection</p>
-        </div>
-        <div className="flex items-center gap-2">
-          <button onClick={handleReEnrich} disabled={enriching}
-            className="flex items-center gap-2 px-3 py-2 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors disabled:opacity-50">
-            {enriching ? <Spinner size="sm" /> : <RefreshCw className="w-3.5 h-3.5" />}
-            Re-Enrich
-          </button>
-          <input ref={importRef} type="file" accept=".csv,.txt" className="hidden"
-            onChange={e => e.target.files?.[0] && handleImport(e.target.files[0])} />
-          <button onClick={() => importRef.current?.click()} disabled={importing}
-            className="flex items-center gap-2 px-3 py-2 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors disabled:opacity-50">
-            {importing ? <Spinner size="sm" /> : <Upload className="w-3.5 h-3.5" />}
-            Import
-          </button>
-          <button onClick={handleExport}
-            className="flex items-center gap-2 px-3 py-2 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors">
-            <Download className="w-3.5 h-3.5" />
-            Export
-          </button>
-        </div>
-      </div>
-
-      <div className="flex gap-5">
-        {/* Left sidebar: search + filters + scanner */}
-        <div className="w-72 flex-shrink-0 space-y-4">
-          {/* Search */}
-          <div className="relative">
-            <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-text-tertiary" />
-            <input
-              type="text"
-              placeholder="Search cards..."
-              value={filters.q || ''}
-              onChange={e => updateFilter('q', e.target.value)}
-              className="w-full pl-10 pr-4 py-2.5 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 focus:ring-1 focus:ring-accent-blue/30 transition-all"
-            />
-          </div>
-
-          {/* Filter toggle */}
-          <button
-            onClick={() => setShowFilters(!showFilters)}
-            className="w-full flex items-center justify-between px-4 py-2.5 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-secondary hover:bg-bg-hover transition-colors"
-          >
-            <span className="flex items-center gap-2">
-              <SlidersHorizontal className="w-4 h-4" />
-              Filters
-            </span>
-            <Filter className={`w-3.5 h-3.5 transition-transform ${showFilters ? 'rotate-180' : ''}`} />
-          </button>
-
-          {showFilters && (
-            <div className="bg-bg-secondary rounded-xl border border-border-primary p-4 space-y-3 animate-fade-in">
-              {/* Rarity */}
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Rarity</label>
-                <select
-                  value={filters.rarity || ''}
-                  onChange={e => updateFilter('rarity', e.target.value || undefined)}
-                  className="mt-1 w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50"
-                >
-                  <option value="">All</option>
-                  <option value="common">Common</option>
-                  <option value="uncommon">Uncommon</option>
-                  <option value="rare">Rare</option>
-                  <option value="mythic">Mythic</option>
-                </select>
-              </div>
-              {/* Color */}
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Color</label>
-                <select
-                  value={filters.color || ''}
-                  onChange={e => updateFilter('color', e.target.value || undefined)}
-                  className="mt-1 w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50"
-                >
-                  <option value="">All</option>
-                  <option value="W">White</option>
-                  <option value="U">Blue</option>
-                  <option value="B">Black</option>
-                  <option value="R">Red</option>
-                  <option value="G">Green</option>
-                  <option value="C">Colorless</option>
-                </select>
-              </div>
-              {/* Set */}
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Set</label>
-                <select
-                  value={filters.set_code || ''}
-                  onChange={e => updateFilter('set_code', e.target.value || undefined)}
-                  className="mt-1 w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50"
-                >
-                  <option value="">All Sets</option>
-                  {sets.map(s => (
-                    <option key={s.code} value={s.code}>{s.name} ({s.card_count})</option>
-                  ))}
-                </select>
-              </div>
-              {/* CMC Range */}
-              <div className="grid grid-cols-2 gap-2">
-                <div>
-                  <label className="text-xs text-text-tertiary uppercase tracking-wider">CMC Min</label>
-                  <input type="number" min="0" max="20"
-                    value={filters.cmc_min ?? ''}
-                    onChange={e => updateFilter('cmc_min', e.target.value ? Number(e.target.value) : undefined)}
-                    className="mt-1 w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50"
-                  />
-                </div>
-                <div>
-                  <label className="text-xs text-text-tertiary uppercase tracking-wider">CMC Max</label>
-                  <input type="number" min="0" max="20"
-                    value={filters.cmc_max ?? ''}
-                    onChange={e => updateFilter('cmc_max', e.target.value ? Number(e.target.value) : undefined)}
-                    className="mt-1 w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50"
-                  />
-                </div>
-              </div>
-              {/* Sort */}
-              <div>
-                <label className="text-xs text-text-tertiary uppercase tracking-wider">Sort By</label>
-                <select
-                  value={filters.sort_by || 'name'}
-                  onChange={e => updateFilter('sort_by', e.target.value)}
-                  className="mt-1 w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50"
-                >
-                  <option value="name">Name</option>
-                  <option value="cmc">CMC</option>
-                  <option value="tcg_price">Price</option>
-                  <option value="rarity">Rarity</option>
-                  <option value="set_code">Set</option>
-                  <option value="added_date">Date Added</option>
-                </select>
-              </div>
-            </div>
-          )}
-
-          {/* Scanner */}
-          <ScannerPanel onCardAdded={fetchCards} />
-        </div>
-
-        {/* Main content: card grid/list */}
-        <div className="flex-1 min-w-0">
-          {/* View toggle + pagination */}
-          <div className="flex items-center justify-between mb-4">
-            <div className="flex items-center gap-1 bg-bg-secondary rounded-lg border border-border-primary p-0.5">
-              <button
-                onClick={() => setViewMode('grid')}
-                className={`p-1.5 rounded-md transition-colors ${viewMode === 'grid' ? 'bg-bg-hover text-text-primary' : 'text-text-tertiary hover:text-text-secondary'}`}
-              >
-                <Grid3x3 className="w-4 h-4" />
-              </button>
-              <button
-                onClick={() => setViewMode('list')}
-                className={`p-1.5 rounded-md transition-colors ${viewMode === 'list' ? 'bg-bg-hover text-text-primary' : 'text-text-tertiary hover:text-text-secondary'}`}
-              >
-                <List className="w-4 h-4" />
-              </button>
-            </div>
-            <div className="flex items-center gap-2 text-sm text-text-secondary">
-              <span>Page {filters.page} of {totalPages || 1}</span>
-              <button
-                onClick={() => setFilters(p => ({ ...p, page: Math.max(1, (p.page || 1) - 1) }))}
-                disabled={!filters.page || filters.page <= 1}
-                className="p-1 rounded hover:bg-bg-hover disabled:opacity-30"
-              >
-                <ChevronLeft className="w-4 h-4" />
-              </button>
-              <button
-                onClick={() => setFilters(p => ({ ...p, page: Math.min(totalPages, (p.page || 1) + 1) }))}
-                disabled={(filters.page || 1) >= totalPages}
-                className="p-1 rounded hover:bg-bg-hover disabled:opacity-30"
-              >
-                <ChevronRight className="w-4 h-4" />
-              </button>
-            </div>
-          </div>
-
-          {loading ? (
-            <div className="flex items-center justify-center h-64">
-              <Spinner size="lg" className="text-accent-blue" />
-            </div>
-          ) : cards.length === 0 ? (
-            <EmptyState
-              icon={Package}
-              title="No cards found"
-              description="Try adjusting your search or filters, or import a collection."
-            />
-          ) : viewMode === 'grid' ? (
-            <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-5 xl:grid-cols-6 gap-3">
-              {cards.map(card => (
-                <div
-                  key={card.id}
-                  className="group cursor-pointer"
-                  onClick={() => setSelectedCard(card)}
-                >
-                  <CardImage src={card.image_url} alt={card.name} size="md" className="w-full h-auto aspect-[5/7]" />
-                  <div className="mt-1.5 px-0.5">
-                    <p className="text-xs font-medium text-text-primary truncate group-hover:text-accent-blue transition-colors">{card.name}</p>
-                    <div className="flex items-center justify-between">
-                      <span className="text-[10px] text-text-tertiary">{card.set_code.toUpperCase()}</span>
-                      {card.tcg_price != null && (
-                        <span className="text-[10px] text-accent-teal font-medium">${card.tcg_price.toFixed(2)}</span>
-                      )}
-                    </div>
-                  </div>
-                </div>
-              ))}
-            </div>
-          ) : (
-            <div className="bg-bg-secondary rounded-xl border border-border-primary overflow-hidden">
-              <table className="w-full text-sm">
-                <thead>
-                  <tr className="border-b border-border-primary text-left">
-                    <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Card</th>
-                    <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Type</th>
-                    <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Mana</th>
-                    <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Set</th>
-                    <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider">Qty</th>
-                    <th className="px-4 py-3 text-xs text-text-tertiary font-medium uppercase tracking-wider text-right">Price</th>
-                  </tr>
-                </thead>
-                <tbody className="divide-y divide-border-primary">
-                  {cards.map(card => (
-                    <tr key={card.id} className="hover:bg-bg-hover cursor-pointer transition-colors" onClick={() => setSelectedCard(card)}>
-                      <td className="px-4 py-2.5">
-                        <span className="font-medium text-text-primary">{card.name}</span>
-                      </td>
-                      <td className="px-4 py-2.5 text-text-secondary text-xs">{card.type_line}</td>
-                      <td className="px-4 py-2.5"><ManaSymbols cost={card.mana_cost} /></td>
-                      <td className="px-4 py-2.5 text-text-secondary text-xs">{card.set_code.toUpperCase()}</td>
-                      <td className="px-4 py-2.5 text-text-secondary">{card.quantity}</td>
-                      <td className="px-4 py-2.5 text-right text-accent-teal font-medium">{card.tcg_price != null ? `$${card.tcg_price.toFixed(2)}` : '—'}</td>
-                    </tr>
-                  ))}
-                </tbody>
-              </table>
-            </div>
-          )}
-        </div>
-      </div>
-
-      {/* Card detail modal */}
-      {selectedCard && <CardDetailModal card={selectedCard} onClose={() => setSelectedCard(null)} />}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/pages/DecksPage.tsx

@@ -1,967 +0,0 @@
-import { useState, useEffect } from 'react'
-import {
-  Plus, Trash2, Download, ChevronRight,
-  BarChart3, Lightbulb, Layers, X, Library,
-  Globe, XCircle, ShoppingCart,
-  ChevronDown, ChevronUp, Sparkles
-} from 'lucide-react'
-import { Spinner, EmptyState, ManaSymbols, ColorDots } from '../components/common'
-import { decksApi } from '../api'
-import type {
-  Deck, DeckCard, DeckAnalysis,
-  EdhRecCard, EdhRecsResponse,
-  CollectionRecsResponse
-} from '../types'
-import { BarChart, Bar, XAxis, YAxis, Tooltip, ResponsiveContainer, Cell } from 'recharts'
-
-// ── Role Badge ──────────────────────────────────────────────
-const ROLE_COLORS: Record<string, string> = {
-  Ramp: 'bg-green-500/15 text-green-400 border-green-500/25',
-  Draw: 'bg-blue-500/15 text-blue-400 border-blue-500/25',
-  Removal: 'bg-red-500/15 text-red-400 border-red-500/25',
-  BoardWipe: 'bg-orange-500/15 text-orange-400 border-orange-500/25',
-  Tutor: 'bg-purple-500/15 text-purple-400 border-purple-500/25',
-  Protection: 'bg-cyan-500/15 text-cyan-400 border-cyan-500/25',
-  Finisher: 'bg-yellow-500/15 text-yellow-400 border-yellow-500/25',
-  Recursion: 'bg-emerald-500/15 text-emerald-400 border-emerald-500/25',
-  Other: 'bg-slate-500/15 text-slate-400 border-slate-500/25',
-}
-
-function RoleBadge({ role }: { role: string }) {
-  const colors = ROLE_COLORS[role] || ROLE_COLORS.Other
-  return (
-    <span className={'text-[10px] font-medium px-1.5 py-0.5 rounded border ' + colors}>
-      {role}
-    </span>
-  )
-}
-
-// ── Deck Card List ────────────────────────────────────────────
-function DeckCardList({ deckId, cards, onUpdate }: { deckId: number; cards: DeckCard[]; onUpdate: () => void }) {
-  const [removing, setRemoving] = useState<number | null>(null)
-
-  // Group cards by category
-  const grouped = cards.reduce<Record<string, DeckCard[]>>((acc, c) => {
-    const cat = c.category || 'Other'
-    if (!acc[cat]) acc[cat] = []
-    acc[cat].push(c)
-    return acc
-  }, {})
-
-  const categoryOrder = ['Commander', 'Creature', 'Instant', 'Sorcery', 'Artifact', 'Enchantment', 'Planeswalker', 'Land', 'Other']
-  const sortedCategories = Object.keys(grouped).sort((a, b) => {
-    const ia = categoryOrder.indexOf(a)
-    const ib = categoryOrder.indexOf(b)
-    return (ia === -1 ? 99 : ia) - (ib === -1 ? 99 : ib)
-  })
-
-  async function handleRemove(cardId: number) {
-    setRemoving(cardId)
-    try {
-      await decksApi.removeCardFromDeck(deckId, cardId)
-      onUpdate()
-    } catch { /* ignore */ }
-    setRemoving(null)
-  }
-
-  return (
-    <div className="space-y-4">
-      {sortedCategories.map(cat => (
-        <div key={cat}>
-          <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider mb-2">
-            {cat} ({grouped[cat].length})
-          </h4>
-          <div className="space-y-1">
-            {grouped[cat].map(card => (
-              <div key={card.id} className="flex items-center gap-3 px-3 py-2 rounded-lg hover:bg-bg-hover group transition-colors">
-                <span className="text-xs text-text-tertiary w-5 text-right">{card.quantity}x</span>
-                <ManaSymbols cost={card.mana_cost} />
-                <span className="flex-1 text-sm text-text-primary truncate">{card.name}</span>
-                {card.tcg_price != null && (
-                  <span className="text-xs text-accent-teal">${card.tcg_price.toFixed(2)}</span>
-                )}
-                {!card.is_commander && (
-                  <button
-                    onClick={() => handleRemove(card.id)}
-                    className="opacity-0 group-hover:opacity-100 p-1 text-text-tertiary hover:text-accent-red transition-all"
-                  >
-                    {removing === card.id ? <Spinner size="sm" /> : <Trash2 className="w-3.5 h-3.5" />}
-                  </button>
-                )}
-              </div>
-            ))}
-          </div>
-        </div>
-      ))}
-    </div>
-  )
-}
-
-// ── Mana Curve Chart ──────────────────────────────────────────
-function ManaCurveChart({ analysis }: { analysis: DeckAnalysis }) {
-  const data = Object.entries(analysis.mana_curve)
-    .map(([cmc, count]) => ({ cmc: cmc === '7' ? '7+' : cmc, count }))
-    .sort((a, b) => Number(a.cmc) - Number(b.cmc))
-
-  return (
-    <div className="h-40">
-      <ResponsiveContainer width="100%" height="100%">
-        <BarChart data={data} barSize={24}>
-          <XAxis dataKey="cmc" axisLine={false} tickLine={false} tick={{ fill: '#6b7190', fontSize: 11 }} />
-          <YAxis hide />
-          <Tooltip
-            contentStyle={{ backgroundColor: '#1c2030', border: '1px solid #2a2f42', borderRadius: 8, fontSize: 12 }}
-            labelStyle={{ color: '#9ba1b8' }}
-            itemStyle={{ color: '#e8eaf0' }}
-          />
-          <Bar dataKey="count" radius={[4, 4, 0, 0]}>
-            {data.map((_, i) => (
-              <Cell key={i} fill="#4f6ef7" fillOpacity={0.8} />
-            ))}
-          </Bar>
-        </BarChart>
-      </ResponsiveContainer>
-    </div>
-  )
-}
-
-// ── EDHREC Recommendations Sub-tab ──────────────────────────
-function EdhRecTab({ deckId, onAddedCards }: { deckId: number; onAddedCards: () => void }) {
-  const [data, setData] = useState<EdhRecsResponse | null>(null)
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-  const [onlyOwned, setOnlyOwned] = useState(false)
-  const [selectedCards, setSelectedCards] = useState<Set<string>>(new Set())
-  const [addingCards, setAddingCards] = useState<Set<string>>(new Set())
-  const [bulkAdding, setBulkAdding] = useState(false)
-  const [hoveredCard, setHoveredCard] = useState<EdhRecCard | null>(null)
-  const [collapsedGroups, setCollapsedGroups] = useState<Set<string>>(new Set())
-
-  async function fetchRecs() {
-    setLoading(true)
-    setError(null)
-    try {
-      const result = await decksApi.getEdhRecs(deckId, onlyOwned)
-      setData(result)
-    } catch (e: any) {
-      setError(e?.message || 'Failed to load EDHREC recommendations')
-    }
-    setLoading(false)
-  }
-
-  useEffect(() => { fetchRecs() }, [deckId, onlyOwned])
-
-  function toggleSelect(name: string) {
-    setSelectedCards(prev => {
-      const next = new Set(prev)
-      if (next.has(name)) next.delete(name)
-      else next.add(name)
-      return next
-    })
-  }
-
-  function selectAll() {
-    if (!data) return
-    setSelectedCards(new Set(data.recommendations.map(r => r.name)))
-  }
-
-  function selectNone() { setSelectedCards(new Set()) }
-
-  function selectOwned() {
-    if (!data) return
-    setSelectedCards(new Set(data.recommendations.filter(r => r.owned).map(r => r.name)))
-  }
-
-  async function handleAddSingle(name: string) {
-    setAddingCards(prev => new Set(prev).add(name))
-    try {
-      await decksApi.bulkAddRecommended(deckId, [name])
-      onAddedCards()
-      // Remove from list
-      if (data) {
-        setData({
-          ...data,
-          recommendations: data.recommendations.filter(r => r.name !== name),
-          total: data.total - 1,
-        })
-      }
-      selectedCards.delete(name)
-      setSelectedCards(new Set(selectedCards))
-    } catch { /* ignore */ }
-    setAddingCards(prev => { const n = new Set(prev); n.delete(name); return n })
-  }
-
-  async function handleBulkAdd() {
-    if (selectedCards.size === 0) return
-    setBulkAdding(true)
-    try {
-      await decksApi.bulkAddRecommended(deckId, Array.from(selectedCards))
-      onAddedCards()
-      if (data) {
-        setData({
-          ...data,
-          recommendations: data.recommendations.filter(r => !selectedCards.has(r.name)),
-          total: data.total - selectedCards.size,
-        })
-      }
-      setSelectedCards(new Set())
-    } catch { /* ignore */ }
-    setBulkAdding(false)
-  }
-
-  function toggleGroup(groupName: string) {
-    setCollapsedGroups(prev => {
-      const next = new Set(prev)
-      if (next.has(groupName)) next.delete(groupName)
-      else next.add(groupName)
-      return next
-    })
-  }
-
-  // Group recommendations by role
-  function groupByRole(recs: EdhRecCard[]): Record<string, EdhRecCard[]> {
-    const groups: Record<string, EdhRecCard[]> = {}
-    for (const rec of recs) {
-      const role = rec.role || 'Other'
-      if (!groups[role]) groups[role] = []
-      groups[role].push(rec)
-    }
-    return groups
-  }
-
-  if (loading) {
-    return <div className="flex items-center justify-center h-40"><Spinner size="lg" className="text-accent-blue" /></div>
-  }
-
-  if (error) {
-    return (
-      <div className="bg-accent-red/10 border border-accent-red/20 rounded-xl p-5 text-center">
-        <XCircle className="w-6 h-6 text-accent-red mx-auto mb-2" />
-        <p className="text-sm text-accent-red font-medium">{error}</p>
-        <button onClick={fetchRecs} className="mt-3 px-4 py-2 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors">
-          Retry
-        </button>
-      </div>
-    )
-  }
-
-  if (!data || data.recommendations.length === 0) {
-    return <EmptyState icon={Globe} title="No EDHREC data" description="No recommendations found for this commander on EDHREC." />
-  }
-
-  const grouped = groupByRole(data.recommendations)
-  const roleOrder = ['Ramp', 'Draw', 'Removal', 'BoardWipe', 'Tutor', 'Protection', 'Finisher', 'Recursion', 'Other']
-  const sortedRoles = Object.keys(grouped).sort((a, b) => {
-    const ia = roleOrder.indexOf(a)
-    const ib = roleOrder.indexOf(b)
-    return (ia === -1 ? 99 : ia) - (ib === -1 ? 99 : ib)
-  })
-
-  const ownedCount = data.recommendations.filter(r => r.owned).length
-  const missingCount = data.recommendations.length - ownedCount
-
-  return (
-    <div className="space-y-4">
-      {/* Header bar */}
-      <div className="flex items-center justify-between flex-wrap gap-3">
-        <div className="flex items-center gap-3">
-          <div className="flex items-center gap-2 text-sm">
-            <Sparkles className="w-4 h-4 text-accent-blue" />
-            <span className="text-text-primary font-medium">{data.commander}</span>
-            <span className="text-text-tertiary">via {data.source}</span>
-          </div>
-          <span className="text-xs px-2 py-0.5 rounded bg-accent-green/15 text-accent-green">{ownedCount} owned</span>
-          <span className="text-xs px-2 py-0.5 rounded bg-bg-tertiary text-text-tertiary">{missingCount} missing</span>
-        </div>
-        <label className="flex items-center gap-2 text-xs text-text-secondary cursor-pointer select-none">
-          <input
-            type="checkbox"
-            checked={onlyOwned}
-            onChange={e => setOnlyOwned(e.target.checked)}
-            className="rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30 w-3.5 h-3.5"
-          />
-          Show only owned
-        </label>
-      </div>
-
-      {/* Selection toolbar */}
-      <div className="flex items-center justify-between bg-bg-secondary rounded-xl border border-border-primary px-4 py-3">
-        <div className="flex items-center gap-2">
-          <span className="text-xs text-text-tertiary">Select:</span>
-          <button onClick={selectAll} className="text-xs text-accent-blue hover:underline">All</button>
-          <span className="text-text-tertiary">/</span>
-          <button onClick={selectNone} className="text-xs text-accent-blue hover:underline">None</button>
-          <span className="text-text-tertiary">/</span>
-          <button onClick={selectOwned} className="text-xs text-accent-blue hover:underline">Owned</button>
-          {selectedCards.size > 0 && (
-            <span className="text-xs text-text-secondary ml-2">({selectedCards.size} selected)</span>
-          )}
-        </div>
-        <button
-          onClick={handleBulkAdd}
-          disabled={selectedCards.size === 0 || bulkAdding}
-          className="flex items-center gap-2 px-3 py-1.5 text-xs font-medium bg-accent-blue text-white rounded-lg hover:bg-accent-blue-hover transition-colors disabled:opacity-40 disabled:cursor-not-allowed"
-        >
-          {bulkAdding ? <Spinner size="sm" /> : <ShoppingCart className="w-3.5 h-3.5" />}
-          Add {selectedCards.size > 0 ? selectedCards.size : ''} to Deck
-        </button>
-      </div>
-
-      {/* Grouped cards */}
-      {sortedRoles.map(role => {
-        const cards = grouped[role]
-        const isCollapsed = collapsedGroups.has(role)
-        return (
-          <div key={role} className="bg-bg-secondary rounded-xl border border-border-primary overflow-hidden">
-            {/* Group header */}
-            <button
-              onClick={() => toggleGroup(role)}
-              className="w-full flex items-center justify-between px-4 py-3 hover:bg-bg-hover transition-colors"
-            >
-              <div className="flex items-center gap-2">
-                <RoleBadge role={role} />
-                <span className="text-xs text-text-tertiary">({cards.length})</span>
-              </div>
-              {isCollapsed ? <ChevronDown className="w-4 h-4 text-text-tertiary" /> : <ChevronUp className="w-4 h-4 text-text-tertiary" />}
-            </button>
-            {/* Card list */}
-            {!isCollapsed && (
-              <div className="border-t border-border-primary divide-y divide-border-primary">
-                {cards.map(rec => (
-                  <div
-                    key={rec.name}
-                    className="flex items-center gap-3 px-4 py-2.5 hover:bg-bg-hover transition-colors group relative"
-                    onMouseEnter={() => setHoveredCard(rec)}
-                    onMouseLeave={() => setHoveredCard(null)}
-                  >
-                    {/* Checkbox */}
-                    <input
-                      type="checkbox"
-                      checked={selectedCards.has(rec.name)}
-                      onChange={() => toggleSelect(rec.name)}
-                      className="rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30 w-3.5 h-3.5 flex-shrink-0"
-                    />
-                    {/* Card image mini */}
-                    {rec.image_url && (
-                      <div className="w-8 h-11 rounded overflow-hidden bg-bg-tertiary flex-shrink-0">
-                        <img src={rec.image_url} alt={rec.name} className="w-full h-full object-cover" loading="lazy" />
-                      </div>
-                    )}
-                    {/* Card info */}
-                    <div className="flex-1 min-w-0">
-                      <p className="text-sm font-medium text-text-primary truncate">{rec.name}</p>
-                      <div className="flex items-center gap-1.5 mt-0.5">
-                        <span className="text-[10px] text-text-tertiary truncate">{rec.type_line}</span>
-                        {rec.roles.length > 0 && rec.roles.map(r => <RoleBadge key={r} role={r} />)}
-                      </div>
-                    </div>
-                    {/* Owned badge */}
-                    <span className={'text-xs px-2 py-0.5 rounded flex-shrink-0 ' + (rec.owned ? 'bg-accent-green/15 text-accent-green' : 'bg-bg-tertiary text-text-tertiary')}>
-                      {rec.owned ? (rec.owned_qty + 'x owned') : 'Missing'}
-                    </span>
-                    {/* Add button */}
-                    <button
-                      onClick={e => { e.stopPropagation(); handleAddSingle(rec.name) }}
-                      disabled={addingCards.has(rec.name)}
-                      className="opacity-0 group-hover:opacity-100 px-2.5 py-1 text-xs font-medium bg-accent-blue text-white rounded-lg hover:bg-accent-blue-hover transition-all disabled:opacity-50 flex-shrink-0"
-                    >
-                      {addingCards.has(rec.name) ? <Spinner size="sm" /> : '+ Add'}
-                    </button>
-                  </div>
-                ))}
-              </div>
-            )}
-          </div>
-        )
-      })}
-
-      {/* Hover preview */}
-      {hoveredCard && hoveredCard.image_url && (
-        <div className="fixed top-20 right-8 z-50 pointer-events-none animate-fade-in">
-          <img
-            src={hoveredCard.image_url}
-            alt={hoveredCard.name}
-            className="w-[244px] rounded-xl shadow-2xl shadow-black/60 border border-border-primary"
-          />
-        </div>
-      )}
-    </div>
-  )
-}
-
-// ── Collection Recommendations Sub-tab ──────────────────────
-function CollectionRecTab({ deckId, onAddedCards }: { deckId: number; onAddedCards: () => void }) {
-  const [data, setData] = useState<CollectionRecsResponse | null>(null)
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-  const [selectedCards, setSelectedCards] = useState<Set<string>>(new Set())
-  const [addingCards, setAddingCards] = useState<Set<string>>(new Set())
-  const [bulkAdding, setBulkAdding] = useState(false)
-  const [collapsedGroups, setCollapsedGroups] = useState<Set<string>>(new Set())
-
-  async function fetchRecs() {
-    setLoading(true)
-    setError(null)
-    try {
-      const result = await decksApi.getCollectionRecs(deckId)
-      setData(result)
-    } catch (e: any) {
-      setError(e?.message || 'Failed to load collection recommendations')
-    }
-    setLoading(false)
-  }
-
-  useEffect(() => { fetchRecs() }, [deckId])
-
-  function toggleSelect(name: string) {
-    setSelectedCards(prev => {
-      const next = new Set(prev)
-      if (next.has(name)) next.delete(name)
-      else next.add(name)
-      return next
-    })
-  }
-
-  function selectAll() {
-    if (!data) return
-    const all = new Set<string>()
-    Object.values(data.grouped).flat().forEach(c => all.add(c.name))
-    setSelectedCards(all)
-  }
-
-  function selectNone() { setSelectedCards(new Set()) }
-
-  async function handleAddSingle(name: string) {
-    setAddingCards(prev => new Set(prev).add(name))
-    try {
-      await decksApi.bulkAddRecommended(deckId, [name])
-      onAddedCards()
-      // Remove from groupings
-      if (data) {
-        const newGrouped = { ...data.grouped }
-        for (const key of Object.keys(newGrouped)) {
-          newGrouped[key] = newGrouped[key].filter(c => c.name !== name)
-          if (newGrouped[key].length === 0) delete newGrouped[key]
-        }
-        setData({ ...data, grouped: newGrouped, total: data.total - 1 })
-      }
-      selectedCards.delete(name)
-      setSelectedCards(new Set(selectedCards))
-    } catch { /* ignore */ }
-    setAddingCards(prev => { const n = new Set(prev); n.delete(name); return n })
-  }
-
-  async function handleBulkAdd() {
-    if (selectedCards.size === 0) return
-    setBulkAdding(true)
-    try {
-      await decksApi.bulkAddRecommended(deckId, Array.from(selectedCards))
-      onAddedCards()
-      if (data) {
-        const newGrouped = { ...data.grouped }
-        for (const key of Object.keys(newGrouped)) {
-          newGrouped[key] = newGrouped[key].filter(c => !selectedCards.has(c.name))
-          if (newGrouped[key].length === 0) delete newGrouped[key]
-        }
-        setData({ ...data, grouped: newGrouped, total: data.total - selectedCards.size })
-      }
-      setSelectedCards(new Set())
-    } catch { /* ignore */ }
-    setBulkAdding(false)
-  }
-
-  function toggleGroup(groupName: string) {
-    setCollapsedGroups(prev => {
-      const next = new Set(prev)
-      if (next.has(groupName)) next.delete(groupName)
-      else next.add(groupName)
-      return next
-    })
-  }
-
-  if (loading) {
-    return <div className="flex items-center justify-center h-40"><Spinner size="lg" className="text-accent-blue" /></div>
-  }
-
-  if (error) {
-    return (
-      <div className="bg-accent-red/10 border border-accent-red/20 rounded-xl p-5 text-center">
-        <XCircle className="w-6 h-6 text-accent-red mx-auto mb-2" />
-        <p className="text-sm text-accent-red font-medium">{error}</p>
-        <button onClick={fetchRecs} className="mt-3 px-4 py-2 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors">
-          Retry
-        </button>
-      </div>
-    )
-  }
-
-  if (!data || data.total === 0) {
-    return <EmptyState icon={Library} title="No collection matches" description="No cards in your collection match this deck's needs." />
-  }
-
-  const typeOrder = ['Creature', 'Instant', 'Sorcery', 'Artifact', 'Enchantment', 'Planeswalker', 'Land', 'Other']
-  const sortedTypes = Object.keys(data.grouped).sort((a, b) => {
-    const ia = typeOrder.indexOf(a)
-    const ib = typeOrder.indexOf(b)
-    return (ia === -1 ? 99 : ia) - (ib === -1 ? 99 : ib)
-  })
-
-  return (
-    <div className="space-y-4">
-      {/* Shortfall alert */}
-      {data.shortfall_types.length > 0 && (
-        <div className="flex items-start gap-3 bg-accent-blue/8 border border-accent-blue/20 rounded-xl px-4 py-3">
-          <Lightbulb className="w-4 h-4 text-accent-blue mt-0.5 flex-shrink-0" />
-          <div>
-            <p className="text-xs font-medium text-accent-blue">Deck needs more:</p>
-            <div className="flex flex-wrap gap-1.5 mt-1">
-              {data.shortfall_types.map(t => (
-                <span key={t} className="text-[10px] font-medium px-2 py-0.5 rounded bg-accent-blue/15 text-accent-blue border border-accent-blue/25">{t}</span>
-              ))}
-            </div>
-          </div>
-        </div>
-      )}
-
-      {/* Selection toolbar */}
-      <div className="flex items-center justify-between bg-bg-secondary rounded-xl border border-border-primary px-4 py-3">
-        <div className="flex items-center gap-2">
-          <span className="text-xs text-text-tertiary">Select:</span>
-          <button onClick={selectAll} className="text-xs text-accent-blue hover:underline">All</button>
-          <span className="text-text-tertiary">/</span>
-          <button onClick={selectNone} className="text-xs text-accent-blue hover:underline">None</button>
-          {selectedCards.size > 0 && (
-            <span className="text-xs text-text-secondary ml-2">({selectedCards.size} selected)</span>
-          )}
-        </div>
-        <button
-          onClick={handleBulkAdd}
-          disabled={selectedCards.size === 0 || bulkAdding}
-          className="flex items-center gap-2 px-3 py-1.5 text-xs font-medium bg-accent-blue text-white rounded-lg hover:bg-accent-blue-hover transition-colors disabled:opacity-40 disabled:cursor-not-allowed"
-        >
-          {bulkAdding ? <Spinner size="sm" /> : <ShoppingCart className="w-3.5 h-3.5" />}
-          Add {selectedCards.size > 0 ? selectedCards.size : ''} to Deck
-        </button>
-      </div>
-
-      {/* Grouped cards */}
-      {sortedTypes.map(type => {
-        const cards = data.grouped[type]
-        const isCollapsed = collapsedGroups.has(type)
-        const isShortfall = data.shortfall_types.includes(type)
-        return (
-          <div key={type} className={'bg-bg-secondary rounded-xl border overflow-hidden ' + (isShortfall ? 'border-accent-blue/30' : 'border-border-primary')}>
-            {/* Group header */}
-            <button
-              onClick={() => toggleGroup(type)}
-              className="w-full flex items-center justify-between px-4 py-3 hover:bg-bg-hover transition-colors"
-            >
-              <div className="flex items-center gap-2">
-                <span className="text-xs font-semibold text-text-primary uppercase tracking-wider">{type}</span>
-                <span className="text-xs text-text-tertiary">({cards.length})</span>
-                {isShortfall && <span className="text-[10px] font-medium px-1.5 py-0.5 rounded bg-accent-blue/15 text-accent-blue border border-accent-blue/25">Shortfall</span>}
-              </div>
-              {isCollapsed ? <ChevronDown className="w-4 h-4 text-text-tertiary" /> : <ChevronUp className="w-4 h-4 text-text-tertiary" />}
-            </button>
-            {/* Card list */}
-            {!isCollapsed && (
-              <div className="border-t border-border-primary divide-y divide-border-primary">
-                {cards.map(rec => (
-                  <div key={rec.scryfall_id} className="flex items-center gap-3 px-4 py-2.5 hover:bg-bg-hover transition-colors group">
-                    {/* Checkbox */}
-                    <input
-                      type="checkbox"
-                      checked={selectedCards.has(rec.name)}
-                      onChange={() => toggleSelect(rec.name)}
-                      className="rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30 w-3.5 h-3.5 flex-shrink-0"
-                    />
-                    {/* Card image mini */}
-                    {rec.image_url && (
-                      <div className="w-8 h-11 rounded overflow-hidden bg-bg-tertiary flex-shrink-0">
-                        <img src={rec.image_url} alt={rec.name} className="w-full h-full object-cover" loading="lazy" />
-                      </div>
-                    )}
-                    {/* Card info */}
-                    <div className="flex-1 min-w-0">
-                      <p className="text-sm font-medium text-text-primary truncate">{rec.name}</p>
-                      <div className="flex items-center gap-1.5 mt-0.5">
-                        <span className="text-[10px] text-text-tertiary">{rec.cmc} CMC</span>
-                        {rec.roles.length > 0 && rec.roles.map(r => <RoleBadge key={r} role={r} />)}
-                      </div>
-                    </div>
-                    {/* Score */}
-                    <span className="text-xs text-accent-teal font-medium flex-shrink-0">Score: {rec.score}</span>
-                    {/* Owned qty */}
-                    <span className="text-xs px-2 py-0.5 rounded bg-accent-green/15 text-accent-green flex-shrink-0">{rec.owned_qty}x</span>
-                    {/* Add button */}
-                    <button
-                      onClick={e => { e.stopPropagation(); handleAddSingle(rec.name) }}
-                      disabled={addingCards.has(rec.name)}
-                      className="opacity-0 group-hover:opacity-100 px-2.5 py-1 text-xs font-medium bg-accent-blue text-white rounded-lg hover:bg-accent-blue-hover transition-all disabled:opacity-50 flex-shrink-0"
-                    >
-                      {addingCards.has(rec.name) ? <Spinner size="sm" /> : '+ Add'}
-                    </button>
-                  </div>
-                ))}
-              </div>
-            )}
-          </div>
-        )
-      })}
-    </div>
-  )
-}
-
-// ── Deck Detail View ──────────────────────────────────────────
-function DeckDetail({ deck, onBack }: { deck: Deck; onBack: () => void }) {
-  const [cards, setCards] = useState<DeckCard[]>([])
-  const [analysis, setAnalysis] = useState<DeckAnalysis | null>(null)
-  const [loading, setLoading] = useState(true)
-  const [tab, setTab] = useState<'cards' | 'analysis' | 'recs'>('cards')
-  const [recSource, setRecSource] = useState<'edhrec' | 'collection'>('edhrec')
-  const [addingCard, setAddingCard] = useState('')
-  const [bulkText, setBulkText] = useState('')
-  const [showBulk, setShowBulk] = useState(false)
-
-  async function fetchAll() {
-    setLoading(true)
-    try {
-      const [c, a] = await Promise.all([
-        decksApi.getDeckCards(deck.id),
-        decksApi.getDeckAnalysis(deck.id),
-      ])
-      setCards(c)
-      setAnalysis(a)
-    } catch { /* ignore */ }
-    setLoading(false)
-  }
-
-  useEffect(() => { fetchAll() }, [deck.id])
-
-  async function handleAddCard() {
-    if (!addingCard.trim()) return
-    try {
-      await decksApi.addCardToDeck(deck.id, { name: addingCard.trim() })
-      setAddingCard('')
-      fetchAll()
-    } catch { /* ignore */ }
-  }
-
-  async function handleBulkAdd() {
-    if (!bulkText.trim()) return
-    const cardLines = bulkText.split('\n').filter(l => l.trim())
-    const cardParsed = cardLines.map(l => {
-      const match = l.match(/^(\d+)x?\s+(.+)$/)
-      return match ? { name: match[2].trim(), quantity: Number(match[1]) } : { name: l.trim() }
-    })
-    try {
-      await decksApi.bulkAddCards(deck.id, cardParsed)
-      setBulkText('')
-      setShowBulk(false)
-      fetchAll()
-    } catch { /* ignore */ }
-  }
-
-  async function handleExportToSim() {
-    try {
-      await decksApi.exportDeckToSim(deck.id)
-    } catch { /* ignore */ }
-  }
-
-  return (
-    <div className="space-y-5">
-      {/* Header */}
-      <div className="flex items-center gap-4">
-        <button onClick={onBack} className="p-2 rounded-lg hover:bg-bg-hover text-text-secondary transition-colors">
-          <ChevronRight className="w-5 h-5 rotate-180" />
-        </button>
-        <div className="flex-1">
-          <h2 className="text-xl font-bold text-text-primary">{deck.name}</h2>
-          <div className="flex items-center gap-3 mt-1">
-            <span className="text-sm text-text-secondary">{deck.commander}</span>
-            <ColorDots colors={deck.color_identity} />
-            <span className="text-xs text-text-tertiary">{deck.card_count} cards</span>
-            <span className="text-xs text-accent-teal">${deck.total_price.toFixed(2)}</span>
-          </div>
-        </div>
-        <button onClick={handleExportToSim}
-          className="flex items-center gap-2 px-3 py-2 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors">
-          <Download className="w-3.5 h-3.5" />
-          Export to Sim
-        </button>
-      </div>
-
-      {/* Tabs */}
-      <div className="flex gap-1 border-b border-border-primary">
-        {(['cards', 'analysis', 'recs'] as const).map(t => (
-          <button
-            key={t}
-            onClick={() => setTab(t)}
-            className={`px-4 py-2.5 text-sm font-medium border-b-2 transition-colors capitalize ${
-              tab === t
-                ? 'border-accent-blue text-accent-blue'
-                : 'border-transparent text-text-tertiary hover:text-text-secondary'
-            }`}
-          >
-            {t === 'recs' ? 'Recommendations' : t}
-          </button>
-        ))}
-      </div>
-
-      {loading ? (
-        <div className="flex items-center justify-center h-40"><Spinner size="lg" className="text-accent-blue" /></div>
-      ) : tab === 'cards' ? (
-        <div className="space-y-4">
-          {/* Add card */}
-          <div className="flex items-center gap-2">
-            <input
-              type="text"
-              placeholder="Add card by name..."
-              value={addingCard}
-              onChange={e => setAddingCard(e.target.value)}
-              onKeyDown={e => e.key === 'Enter' && handleAddCard()}
-              className="flex-1 px-4 py-2.5 bg-bg-secondary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-            />
-            <button onClick={handleAddCard}
-              className="px-4 py-2.5 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors">
-              Add
-            </button>
-            <button onClick={() => setShowBulk(!showBulk)}
-              className="px-3 py-2.5 bg-bg-tertiary text-text-secondary text-sm rounded-lg hover:bg-bg-hover border border-border-primary transition-colors">
-              <Layers className="w-4 h-4" />
-            </button>
-          </div>
-          {showBulk && (
-            <div className="bg-bg-secondary rounded-xl border border-border-primary p-4 animate-fade-in space-y-3">
-              <textarea
-                placeholder={"1x Sol Ring\n1x Command Tower\n2x Counterspell"}
-                value={bulkText}
-                onChange={e => setBulkText(e.target.value)}
-                rows={6}
-                className="w-full px-4 py-3 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary font-mono focus:outline-none focus:border-accent-blue/50 transition-all resize-none"
-              />
-              <button onClick={handleBulkAdd}
-                className="px-4 py-2 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors">
-                Bulk Add
-              </button>
-            </div>
-          )}
-          <DeckCardList deckId={deck.id} cards={cards} onUpdate={fetchAll} />
-        </div>
-      ) : tab === 'analysis' && analysis ? (
-        <div className="grid grid-cols-1 md:grid-cols-2 gap-5">
-          {/* Stats */}
-          <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 space-y-4">
-            <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-              <BarChart3 className="w-4 h-4 text-accent-blue" />
-              Deck Stats
-            </h3>
-            <div className="grid grid-cols-2 gap-3">
-              {[
-                { label: 'Cards', value: analysis.card_count },
-                { label: 'Lands', value: analysis.land_count },
-                { label: 'Creatures', value: analysis.creature_count },
-                { label: 'Non-Creature', value: analysis.noncreature_count },
-                { label: 'Avg CMC', value: analysis.avg_cmc.toFixed(2) },
-                { label: 'Owned', value: `${analysis.owned_count} / ${analysis.card_count}` },
-              ].map(stat => (
-                <div key={stat.label} className="px-3 py-2 rounded-lg bg-bg-tertiary">
-                  <p className="text-xs text-text-tertiary">{stat.label}</p>
-                  <p className="text-lg font-bold text-text-primary">{stat.value}</p>
-                </div>
-              ))}
-            </div>
-          </div>
-          {/* Mana Curve */}
-          <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 space-y-4">
-            <h3 className="text-sm font-semibold text-text-primary">Mana Curve</h3>
-            <ManaCurveChart analysis={analysis} />
-          </div>
-          {/* Type Distribution */}
-          <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 space-y-3 md:col-span-2">
-            <h3 className="text-sm font-semibold text-text-primary">Type Distribution</h3>
-            <div className="flex flex-wrap gap-2">
-              {Object.entries(analysis.type_distribution).map(([type, count]) => (
-                <span key={type} className="px-3 py-1.5 bg-bg-tertiary rounded-lg text-xs text-text-secondary">
-                  {type}: <span className="font-semibold text-text-primary">{count}</span>
-                </span>
-              ))}
-            </div>
-          </div>
-        </div>
-      ) : tab === 'recs' ? (
-        <div className="space-y-4">
-          {/* Sub-tab toggle */}
-          <div className="flex items-center gap-1 bg-bg-tertiary rounded-lg p-1 w-fit">
-            <button
-              onClick={() => setRecSource('edhrec')}
-              className={'flex items-center gap-1.5 px-3.5 py-2 text-xs font-medium rounded-md transition-all ' +
-                (recSource === 'edhrec'
-                  ? 'bg-accent-blue text-white shadow-sm'
-                  : 'text-text-tertiary hover:text-text-secondary')}
-            >
-              <Globe className="w-3.5 h-3.5" />
-              EDHREC
-            </button>
-            <button
-              onClick={() => setRecSource('collection')}
-              className={'flex items-center gap-1.5 px-3.5 py-2 text-xs font-medium rounded-md transition-all ' +
-                (recSource === 'collection'
-                  ? 'bg-accent-blue text-white shadow-sm'
-                  : 'text-text-tertiary hover:text-text-secondary')}
-            >
-              <Library className="w-3.5 h-3.5" />
-              From Collection
-            </button>
-          </div>
-
-          {/* Sub-tab content */}
-          {recSource === 'edhrec' ? (
-            <EdhRecTab deckId={deck.id} onAddedCards={fetchAll} />
-          ) : (
-            <CollectionRecTab deckId={deck.id} onAddedCards={fetchAll} />
-          )}
-        </div>
-      ) : null}
-    </div>
-  )
-}
-
-// ── Main Decks Page ───────────────────────────────────────────
-export function DecksPage() {
-  const [decks, setDecks] = useState<Deck[]>([])
-  const [loading, setLoading] = useState(true)
-  const [selectedDeck, setSelectedDeck] = useState<Deck | null>(null)
-  const [showCreate, setShowCreate] = useState(false)
-  const [newDeckName, setNewDeckName] = useState('')
-  const [newCommander, setNewCommander] = useState('')
-  const [creating, setCreating] = useState(false)
-
-  async function fetchDecks() {
-    setLoading(true)
-    try {
-      const d = await decksApi.listDecks()
-      setDecks(d)
-    } catch { /* ignore */ }
-    setLoading(false)
-  }
-
-  useEffect(() => { fetchDecks() }, [])
-
-  async function handleCreate() {
-    if (!newDeckName.trim()) return
-    setCreating(true)
-    try {
-      const deck = await decksApi.createDeck({ name: newDeckName.trim(), commander: newCommander.trim() || undefined })
-      setNewDeckName('')
-      setNewCommander('')
-      setShowCreate(false)
-      setSelectedDeck(deck)
-      fetchDecks()
-    } catch { /* ignore */ }
-    setCreating(false)
-  }
-
-  async function handleDelete(deckId: number) {
-    try {
-      await decksApi.deleteDeck(deckId)
-      fetchDecks()
-    } catch { /* ignore */ }
-  }
-
-  if (selectedDeck) {
-    return (
-      <div className="p-6">
-        <DeckDetail deck={selectedDeck} onBack={() => { setSelectedDeck(null); fetchDecks() }} />
-      </div>
-    )
-  }
-
-  return (
-    <div className="p-6 space-y-5">
-      {/* Header */}
-      <div className="flex items-center justify-between">
-        <div>
-          <h1 className="text-2xl font-bold text-text-primary">Decks</h1>
-          <p className="text-sm text-text-secondary mt-0.5">{decks.length} deck{decks.length !== 1 ? 's' : ''}</p>
-        </div>
-        <button
-          onClick={() => setShowCreate(true)}
-          className="flex items-center gap-2 px-4 py-2.5 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors"
-        >
-          <Plus className="w-4 h-4" />
-          New Deck
-        </button>
-      </div>
-
-      {/* Create form */}
-      {showCreate && (
-        <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 animate-fade-in space-y-3">
-          <div className="flex items-center justify-between">
-            <h3 className="text-sm font-semibold text-text-primary">Create New Deck</h3>
-            <button onClick={() => setShowCreate(false)} className="text-text-tertiary hover:text-text-secondary">
-              <X className="w-4 h-4" />
-            </button>
-          </div>
-          <div className="grid grid-cols-2 gap-3">
-            <input
-              type="text"
-              placeholder="Deck name"
-              value={newDeckName}
-              onChange={e => setNewDeckName(e.target.value)}
-              className="px-4 py-2.5 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-            />
-            <input
-              type="text"
-              placeholder="Commander (optional)"
-              value={newCommander}
-              onChange={e => setNewCommander(e.target.value)}
-              className="px-4 py-2.5 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-            />
-          </div>
-          <button onClick={handleCreate} disabled={creating}
-            className="px-4 py-2 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors disabled:opacity-50">
-            {creating ? <Spinner size="sm" /> : 'Create'}
-          </button>
-        </div>
-      )}
-
-      {/* Deck list */}
-      {loading ? (
-        <div className="flex items-center justify-center h-40"><Spinner size="lg" className="text-accent-blue" /></div>
-      ) : decks.length === 0 ? (
-        <EmptyState icon={Layers} title="No decks yet" description="Create your first deck to get started." />
-      ) : (
-        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
-          {decks.map(deck => (
-            <div
-              key={deck.id}
-              className="bg-bg-secondary rounded-xl border border-border-primary hover:border-border-secondary p-5 cursor-pointer transition-all group"
-              onClick={() => setSelectedDeck(deck)}
-            >
-              <div className="flex items-start justify-between mb-3">
-                <div className="min-w-0 flex-1">
-                  <h3 className="text-base font-semibold text-text-primary truncate group-hover:text-accent-blue transition-colors">{deck.name}</h3>
-                  <p className="text-sm text-text-secondary mt-0.5 truncate">{deck.commander}</p>
-                </div>
-                <button
-                  onClick={e => { e.stopPropagation(); handleDelete(deck.id) }}
-                  className="opacity-0 group-hover:opacity-100 p-1.5 text-text-tertiary hover:text-accent-red transition-all"
-                >
-                  <Trash2 className="w-3.5 h-3.5" />
-                </button>
-              </div>
-              <div className="flex items-center justify-between">
-                <div className="flex items-center gap-3">
-                  <ColorDots colors={deck.color_identity} />
-                  <span className="text-xs text-text-tertiary">{deck.card_count} cards</span>
-                </div>
-                <span className="text-xs font-medium text-accent-teal">${deck.total_price.toFixed(2)}</span>
-              </div>
-            </div>
-          ))}
-        </div>
-      )}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/pages/SimulatorPage.tsx

@@ -1,284 +0,0 @@
-import { useState, useEffect } from 'react'
-import {
-  Gamepad2, Play, Wifi, WifiOff, Settings,
-  AlertCircle, Trophy, Clock, Brain
-} from 'lucide-react'
-import { Spinner, StatusBadge } from '../components/common'
-import { simApi, labApi } from '../api'
-import { usePolling } from '../hooks/usePolling'
-import type { SimStatus, SimResult, DeepSeekStatus, LabDeck } from '../types'
-import { BarChart, Bar, XAxis, YAxis, Tooltip, ResponsiveContainer, Cell } from 'recharts'
-
-export function SimulatorPage() {
-  const [decks, setDecks] = useState<LabDeck[]>([])
-  const [deckA, setDeckA] = useState('')
-  const [deckB, setDeckB] = useState('')
-  const [games, setGames] = useState(50)
-  const [useDeepSeek, setUseDeepSeek] = useState(false)
-  const [deepSeekDeck, setDeepSeekDeck] = useState('')
-  const [dsStatus, setDsStatus] = useState<DeepSeekStatus | null>(null)
-  const [running, setRunning] = useState(false)
-  const [simId, setSimId] = useState<string | null>(null)
-  const [simStatus, setSimStatus] = useState<SimStatus | null>(null)
-  const [result, setResult] = useState<SimResult | null>(null)
-  const [error, setError] = useState<string | null>(null)
-  const [starting, setStarting] = useState(false)
-
-  // DS config
-  const [showDsConfig, setShowDsConfig] = useState(false)
-  const [dsModel, setDsModel] = useState('')
-  const [dsUrl, setDsUrl] = useState('')
-
-  useEffect(() => {
-    labApi.getLabDecks().then(setDecks).catch(() => {})
-    simApi.getDeepSeekStatus().then(s => {
-      setDsStatus(s)
-      if (s.model) setDsModel(s.model)
-      if (s.base_url) setDsUrl(s.base_url)
-    }).catch(() => {})
-  }, [])
-
-  // Poll while running
-  usePolling(async () => {
-    if (!simId) return
-    try {
-      const s = await simApi.getSimStatus(simId)
-      setSimStatus(s)
-      if (!s.running) {
-        const r = await simApi.getSimResult(simId)
-        setResult(r)
-        setRunning(false)
-      }
-    } catch { /* ignore */ }
-  }, 2000, running)
-
-  async function handleStart() {
-    if (!deckA || !deckB) { setError('Select both decks'); return }
-    setStarting(true)
-    setError(null)
-    setResult(null)
-    try {
-      let res
-      if (useDeepSeek && deepSeekDeck) {
-        res = await simApi.runDeepSeekSim({ deck_a: deckA, deck_b: deckB, games, deepseek_deck: deepSeekDeck })
-      } else {
-        res = await simApi.runSim({ deck_a: deckA, deck_b: deckB, games })
-      }
-      setSimId(res.sim_id)
-      setRunning(true)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Failed to start')
-    }
-    setStarting(false)
-  }
-
-  async function handleDsConnect() {
-    try {
-      const s = await simApi.connectDeepSeek()
-      setDsStatus(s)
-    } catch { /* ignore */ }
-  }
-
-  async function handleDsConfigure() {
-    try {
-      const s = await simApi.configureDeepSeek({
-        model: dsModel || undefined,
-        base_url: dsUrl || undefined,
-      })
-      setDsStatus(s)
-      setShowDsConfig(false)
-    } catch { /* ignore */ }
-  }
-
-  return (
-    <div className="p-6 space-y-5">
-      <div>
-        <h1 className="text-2xl font-bold text-text-primary flex items-center gap-3">
-          <Gamepad2 className="w-6 h-6 text-accent-purple" />
-          Simulator
-        </h1>
-        <p className="text-sm text-text-secondary mt-0.5">Run head-to-head deck simulations</p>
-      </div>
-
-      {/* DeepSeek status */}
-      <div className="flex items-center gap-3">
-        <StatusBadge
-          variant={dsStatus?.connected ? 'success' : 'warning'}
-          label={dsStatus?.connected ? `DeepSeek: ${dsStatus.model}` : 'DeepSeek: Disconnected'}
-        />
-        <button onClick={handleDsConnect}
-          className="flex items-center gap-1.5 text-xs text-text-tertiary hover:text-text-secondary transition-colors">
-          {dsStatus?.connected ? <Wifi className="w-3 h-3" /> : <WifiOff className="w-3 h-3" />}
-          {dsStatus?.connected ? 'Reconnect' : 'Connect'}
-        </button>
-        <button onClick={() => setShowDsConfig(!showDsConfig)}
-          className="flex items-center gap-1.5 text-xs text-text-tertiary hover:text-text-secondary transition-colors">
-          <Settings className="w-3 h-3" />
-          Configure
-        </button>
-      </div>
-
-      {showDsConfig && (
-        <div className="bg-bg-secondary rounded-xl border border-border-primary p-4 max-w-md animate-fade-in space-y-3">
-          <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-            <Brain className="w-4 h-4 text-accent-purple" />
-            DeepSeek Configuration
-          </h3>
-          <input
-            type="text"
-            placeholder="Model name"
-            value={dsModel}
-            onChange={e => setDsModel(e.target.value)}
-            className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-          />
-          <input
-            type="text"
-            placeholder="Base URL (e.g. http://192.168.0.240:11434)"
-            value={dsUrl}
-            onChange={e => setDsUrl(e.target.value)}
-            className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary placeholder:text-text-tertiary focus:outline-none focus:border-accent-blue/50 transition-all"
-          />
-          <button onClick={handleDsConfigure}
-            className="px-4 py-2 bg-accent-blue text-white text-sm font-medium rounded-lg hover:bg-accent-blue-hover transition-colors">
-            Save
-          </button>
-        </div>
-      )}
-
-      {/* Sim config */}
-      <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 space-y-4 max-w-2xl">
-        <div className="grid grid-cols-2 gap-4">
-          <div>
-            <label className="text-xs text-text-tertiary uppercase tracking-wider">Deck A</label>
-            <select
-              value={deckA}
-              onChange={e => setDeckA(e.target.value)}
-              className="mt-1 w-full px-3 py-2.5 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all"
-            >
-              <option value="">Select deck...</option>
-              {decks.map(d => <option key={d.name} value={d.name}>{d.name}</option>)}
-            </select>
-          </div>
-          <div>
-            <label className="text-xs text-text-tertiary uppercase tracking-wider">Deck B</label>
-            <select
-              value={deckB}
-              onChange={e => setDeckB(e.target.value)}
-              className="mt-1 w-full px-3 py-2.5 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all"
-            >
-              <option value="">Select deck...</option>
-              {decks.map(d => <option key={d.name} value={d.name}>{d.name}</option>)}
-            </select>
-          </div>
-        </div>
-
-        <div className="flex items-center gap-6">
-          <div>
-            <label className="text-xs text-text-tertiary uppercase tracking-wider">Games</label>
-            <input
-              type="number" min={1} max={1000}
-              value={games}
-              onChange={e => setGames(Number(e.target.value))}
-              className="mt-1 w-24 px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all"
-            />
-          </div>
-          <label className="flex items-center gap-2 cursor-pointer mt-5">
-            <input type="checkbox" checked={useDeepSeek} onChange={e => setUseDeepSeek(e.target.checked)}
-              className="w-4 h-4 rounded border-border-primary bg-bg-tertiary text-accent-purple focus:ring-accent-purple/30" />
-            <span className="text-sm text-text-secondary">Use DeepSeek AI pilot</span>
-          </label>
-          {useDeepSeek && (
-            <div className="mt-5">
-              <select
-                value={deepSeekDeck}
-                onChange={e => setDeepSeekDeck(e.target.value)}
-                className="px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all"
-              >
-                <option value="">AI pilots which deck?</option>
-                {[deckA, deckB].filter(Boolean).map(d => <option key={d} value={d}>{d}</option>)}
-              </select>
-            </div>
-          )}
-        </div>
-
-        {error && (
-          <div className="flex items-center gap-2 px-4 py-2 bg-status-error/10 border border-status-error/30 rounded-lg text-sm text-status-error">
-            <AlertCircle className="w-4 h-4" />{error}
-          </div>
-        )}
-
-        {running ? (
-          <div className="flex items-center gap-3">
-            <Spinner size="md" className="text-accent-blue" />
-            <div>
-              <p className="text-sm text-text-primary">Simulation running...</p>
-              {simStatus && (
-                <p className="text-xs text-text-tertiary">
-                  {simStatus.games_completed ?? 0} / {simStatus.total_games ?? games} games
-                </p>
-              )}
-            </div>
-          </div>
-        ) : (
-          <button onClick={handleStart} disabled={starting || !deckA || !deckB}
-            className="flex items-center gap-2 px-5 py-2.5 bg-accent-purple/15 text-accent-purple text-sm font-semibold rounded-lg hover:bg-accent-purple/25 border border-accent-purple/30 transition-colors disabled:opacity-50">
-            {starting ? <Spinner size="sm" /> : <Play className="w-4 h-4" />}
-            Run Simulation
-          </button>
-        )}
-      </div>
-
-      {/* Results */}
-      {result && (
-        <div className="bg-bg-secondary rounded-xl border border-border-primary p-5 space-y-4 animate-fade-in">
-          <div className="flex items-center justify-between">
-            <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-              <Trophy className="w-4 h-4 text-accent-amber" />
-              Results
-            </h3>
-            <span className="text-xs text-text-tertiary flex items-center gap-1.5">
-              <Clock className="w-3 h-3" />
-              {(result.duration_ms / 1000).toFixed(1)}s · {result.total_games} games
-            </span>
-          </div>
-          <div className="h-48">
-            <ResponsiveContainer width="100%" height="100%">
-              <BarChart data={result.decks.map(d => ({ name: d.name, win_rate: Math.round(d.win_rate * 100) }))} barSize={40}>
-                <XAxis dataKey="name" tick={{ fill: '#9ba1b8', fontSize: 12 }} axisLine={false} tickLine={false} />
-                <YAxis domain={[0, 100]} tick={{ fill: '#6b7190', fontSize: 11 }} axisLine={false} tickLine={false} />
-                <Tooltip contentStyle={{ backgroundColor: '#1c2030', border: '1px solid #2a2f42', borderRadius: 8, fontSize: 12 }}
-                  formatter={(value: unknown) => [`${value}%`, 'Win Rate']} />
-                <Bar dataKey="win_rate" radius={[4, 4, 0, 0]}>
-                  {result.decks.map((d, i) => (
-                    <Cell key={i} fill={d.win_rate === Math.max(...result.decks.map(x => x.win_rate)) ? '#4ade80' : '#4f6ef7'} />
-                  ))}
-                </Bar>
-              </BarChart>
-            </ResponsiveContainer>
-          </div>
-          <div className="grid grid-cols-2 gap-4">
-            {result.decks.map(d => (
-              <div key={d.name} className="px-4 py-3 rounded-lg bg-bg-tertiary">
-                <p className="text-sm font-semibold text-text-primary">{d.name}</p>
-                <div className="grid grid-cols-3 gap-2 mt-2">
-                  <div>
-                    <p className="text-[10px] text-text-tertiary uppercase">Wins</p>
-                    <p className="text-lg font-bold text-accent-green">{d.wins}</p>
-                  </div>
-                  <div>
-                    <p className="text-[10px] text-text-tertiary uppercase">Win Rate</p>
-                    <p className="text-lg font-bold text-accent-blue">{(d.win_rate * 100).toFixed(1)}%</p>
-                  </div>
-                  <div>
-                    <p className="text-[10px] text-text-tertiary uppercase">Avg Turn</p>
-                    <p className="text-lg font-bold text-text-primary">{d.avg_turn.toFixed(1)}</p>
-                  </div>
-                </div>
-              </div>
-            ))}
-          </div>
-        </div>
-      )}
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/pages/TrainingPage.tsx

@@ -1,822 +0,0 @@
-import { useState, useEffect, useCallback } from 'react'
-import {
-  Brain, Play, RotateCw, Database, Trophy, AlertCircle,
-  Activity, Zap, Swords, FileText, Cpu, CheckCircle,
-  ChevronDown, ChevronUp, Settings
-} from 'lucide-react'
-import { Spinner, StatusBadge } from '../components/common'
-import { trainingApi } from '../api'
-import { usePolling } from '../hooks/usePolling'
-import type {
-  MLStatus, MLDataStatus, MLTrainStatus, PPOTrainStatus,
-  TournamentStatus, MLModelInfo
-} from '../types'
-
-// ── Progress Bar ──────────────────────────────────────────────
-function ProgressBar({ value, max, label, color = 'bg-accent-blue' }: { value: number; max: number; label: string; color?: string }) {
-  const pct = max > 0 ? Math.min((value / max) * 100, 100) : 0
-  return (
-    <div>
-      <div className="flex items-center justify-between text-xs mb-1">
-        <span className="text-text-secondary">{label}</span>
-        <span className="text-text-tertiary">{value} / {max} ({pct.toFixed(0)}%)</span>
-      </div>
-      <div className="w-full h-2 bg-bg-tertiary rounded-full overflow-hidden">
-        <div className={'h-full rounded-full transition-all duration-500 ' + color} style={{ width: `${pct}%` }} />
-      </div>
-    </div>
-  )
-}
-
-// ── Phase Badge ──────────────────────────────────────────────
-const PHASE_STYLES: Record<string, string> = {
-  idle: 'bg-bg-tertiary text-text-tertiary',
-  starting: 'bg-accent-blue/15 text-accent-blue animate-pulse',
-  building: 'bg-accent-purple/15 text-accent-purple animate-pulse',
-  training: 'bg-accent-blue/15 text-accent-blue animate-pulse',
-  evaluating: 'bg-accent-teal/15 text-accent-teal animate-pulse',
-  running: 'bg-accent-amber/15 text-accent-amber animate-pulse',
-  done: 'bg-accent-green/15 text-accent-green',
-  error: 'bg-accent-red/15 text-accent-red',
-}
-
-function PhaseBadge({ phase }: { phase: string }) {
-  const cls = PHASE_STYLES[phase] || PHASE_STYLES.idle
-  return (
-    <span className={'text-[10px] font-semibold uppercase tracking-wider px-2 py-0.5 rounded ' + cls}>
-      {phase}
-    </span>
-  )
-}
-
-// ── Metric Card ──────────────────────────────────────────────
-function MetricCard({ label, value, accent }: { label: string; value: string | number; accent?: string }) {
-  return (
-    <div className="px-3 py-2 bg-bg-tertiary rounded-lg">
-      <p className="text-[10px] text-text-tertiary">{label}</p>
-      <p className={'text-sm font-bold ' + (accent || 'text-text-primary')}>{value}</p>
-    </div>
-  )
-}
-
-// ── Collapsible Section ─────────────────────────────────────
-function Section({ title, icon, children, defaultOpen = true, color = 'text-accent-blue' }: {
-  title: string; icon: React.ReactNode; children: React.ReactNode; defaultOpen?: boolean; color?: string
-}) {
-  const [open, setOpen] = useState(defaultOpen)
-  return (
-    <div className="bg-bg-secondary rounded-xl border border-border-primary overflow-hidden">
-      <button
-        onClick={() => setOpen(!open)}
-        className="w-full flex items-center justify-between px-5 py-4 hover:bg-bg-hover transition-colors"
-      >
-        <h3 className="text-sm font-semibold text-text-primary flex items-center gap-2">
-          <span className={color}>{icon}</span>
-          {title}
-        </h3>
-        {open ? <ChevronUp className="w-4 h-4 text-text-tertiary" /> : <ChevronDown className="w-4 h-4 text-text-tertiary" />}
-      </button>
-      {open && <div className="px-5 pb-5 space-y-4 border-t border-border-primary pt-4">{children}</div>}
-    </div>
-  )
-}
-
-// ══════════════════════════════════════════════════════════════
-// Main Training Page
-// ══════════════════════════════════════════════════════════════
-export function TrainingPage() {
-  // Status states
-  const [mlStatus, setMlStatus] = useState<MLStatus | null>(null)
-  const [dataStatus, setDataStatus] = useState<MLDataStatus | null>(null)
-  const [modelInfo, setModelInfo] = useState<MLModelInfo | null>(null)
-  const [trainStatus, setTrainStatus] = useState<MLTrainStatus | null>(null)
-  const [ppoStatus, setPpoStatus] = useState<PPOTrainStatus | null>(null)
-  const [tournStatus, setTournStatus] = useState<TournamentStatus | null>(null)
-  const [loading, setLoading] = useState(true)
-  const [error, setError] = useState<string | null>(null)
-
-  // Supervised training config
-  const [epochs, setEpochs] = useState(50)
-  const [lr, setLr] = useState(0.001)
-  const [batchSize, setBatchSize] = useState(256)
-  const [patience, setPatience] = useState(10)
-  const [rebuildDataset, setRebuildDataset] = useState(true)
-
-  // PPO config
-  const [ppoIterations, setPpoIterations] = useState(100)
-  const [ppoEpisodes, setPpoEpisodes] = useState(64)
-  const [ppoEpochs, setPpoEpochs] = useState(4)
-  const [ppoBatchSize, setPpoBatchSize] = useState(256)
-  const [ppoLr, setPpoLr] = useState(0.0003)
-  const [ppoClipEps, setPpoClipEps] = useState(0.2)
-  const [ppoEntropy, setPpoEntropy] = useState(0.01)
-  const [ppoOpponent, setPpoOpponent] = useState('heuristic')
-  const [ppoPlaystyle, _setPpoPlaystyle] = useState('midrange') // eslint-disable-line
-
-  // Tournament config
-  const [tournEpisodes, setTournEpisodes] = useState(50)
-  const [tournPlaystyle, setTournPlaystyle] = useState('midrange')
-
-  // Action states
-  const [startingTrain, setStartingTrain] = useState(false)
-  const [startingPpo, setStartingPpo] = useState(false)
-  const [startingTourn, setStartingTourn] = useState(false)
-  const [reloading, setReloading] = useState(false)
-  const [showSupAdvanced, setShowSupAdvanced] = useState(false)
-  const [showPpoAdvanced, setShowPpoAdvanced] = useState(false)
-
-  // ── Initial Load ──────────────────────────────────────────
-  const loadAll = useCallback(async () => {
-    try {
-      const [ml, data, model, train, ppo, tourn] = await Promise.all([
-        trainingApi.getMLStatus().catch(() => null),
-        trainingApi.getDataStatus().catch(() => null),
-        trainingApi.getModelInfo().catch(() => null),
-        trainingApi.getTrainStatus().catch(() => null),
-        trainingApi.getPPOStatus().catch(() => null),
-        trainingApi.getTournamentStatus().catch(() => null),
-      ])
-      if (ml) setMlStatus(ml)
-      if (data) setDataStatus(data)
-      if (model) setModelInfo(model)
-      if (train) setTrainStatus(train)
-      if (ppo) setPpoStatus(ppo)
-      if (tourn) setTournStatus(tourn)
-    } catch { /* ignore */ }
-    setLoading(false)
-  }, [])
-
-  useEffect(() => { loadAll() }, [loadAll])
-
-  // ── Polling ───────────────────────────────────────────────
-  const isTraining = trainStatus?.running || false
-  const isPpo = ppoStatus?.running || false
-  const isTourn = tournStatus?.running || false
-  const anyRunning = isTraining || isPpo || isTourn
-
-  usePolling(async () => {
-    try {
-      const s = await trainingApi.getTrainStatus()
-      setTrainStatus(s)
-      if (!s.running && s.phase === 'done') {
-        // Refresh model info + data when training completes
-        const [model, data] = await Promise.all([
-          trainingApi.getModelInfo().catch(() => null),
-          trainingApi.getDataStatus().catch(() => null),
-        ])
-        if (model) setModelInfo(model)
-        if (data) setDataStatus(data)
-      }
-    } catch { /* ignore */ }
-  }, 2000, isTraining)
-
-  usePolling(async () => {
-    try {
-      const s = await trainingApi.getPPOStatus()
-      setPpoStatus(s)
-      if (!s.running && s.phase === 'done') {
-        const [model, data] = await Promise.all([
-          trainingApi.getModelInfo().catch(() => null),
-          trainingApi.getDataStatus().catch(() => null),
-        ])
-        if (model) setModelInfo(model)
-        if (data) setDataStatus(data)
-      }
-    } catch { /* ignore */ }
-  }, 2000, isPpo)
-
-  usePolling(async () => {
-    try {
-      const s = await trainingApi.getTournamentStatus()
-      setTournStatus(s)
-    } catch { /* ignore */ }
-  }, 2000, isTourn)
-
-  // ── Actions ───────────────────────────────────────────────
-  async function handleToggleLogging() {
-    try {
-      const newState = !(mlStatus?.ml_logging_enabled ?? false)
-      await trainingApi.toggleML(newState)
-      const ml = await trainingApi.getMLStatus()
-      setMlStatus(ml)
-    } catch { /* ignore */ }
-  }
-
-  async function handleReloadModel() {
-    setReloading(true)
-    try {
-      const res = await trainingApi.reloadModel()
-      setModelInfo(res.status)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Failed to reload model')
-    }
-    setReloading(false)
-  }
-
-  async function handleStartTrain() {
-    setStartingTrain(true)
-    setError(null)
-    try {
-      await trainingApi.startTraining({ epochs, lr, batchSize, patience, rebuildDataset })
-      const s = await trainingApi.getTrainStatus()
-      setTrainStatus(s)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Failed to start training')
-    }
-    setStartingTrain(false)
-  }
-
-  async function handleStartPpo() {
-    setStartingPpo(true)
-    setError(null)
-    try {
-      await trainingApi.startPPOTraining({
-        iterations: ppoIterations,
-        episodesPerIter: ppoEpisodes,
-        ppoEpochs,
-        batchSize: ppoBatchSize,
-        lr: ppoLr,
-        clipEpsilon: ppoClipEps,
-        entropyCoeff: ppoEntropy,
-        opponent: ppoOpponent,
-        playstyle: ppoPlaystyle,
-      })
-      const s = await trainingApi.getPPOStatus()
-      setPpoStatus(s)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Failed to start PPO training')
-    }
-    setStartingPpo(false)
-  }
-
-  async function handleStartTournament() {
-    setStartingTourn(true)
-    setError(null)
-    try {
-      await trainingApi.startTournament({ episodes: tournEpisodes, playstyle: tournPlaystyle })
-      const s = await trainingApi.getTournamentStatus()
-      setTournStatus(s)
-    } catch (e) {
-      setError(e instanceof Error ? e.message : 'Failed to start tournament')
-    }
-    setStartingTourn(false)
-  }
-
-  // ── Render ────────────────────────────────────────────────
-  if (loading) {
-    return <div className="p-6 flex items-center justify-center h-64"><Spinner size="lg" className="text-accent-blue" /></div>
-  }
-
-  const trainDataset = dataStatus?.datasets?.['train']
-  const hasDecisions = (mlStatus?.total_decisions ?? 0) > 0
-  const hasModel = modelInfo?.loaded === true
-
-  return (
-    <div className="p-6 space-y-5">
-      {/* Page Header */}
-      <div>
-        <h1 className="text-2xl font-bold text-text-primary flex items-center gap-3">
-          <Brain className="w-6 h-6 text-accent-green" />
-          ML Training Pipeline
-        </h1>
-        <p className="text-sm text-text-secondary mt-0.5">Collect data, train models, and evaluate performance</p>
-      </div>
-
-      {/* Error banner */}
-      {error && (
-        <div className="flex items-center gap-2 px-4 py-2 bg-accent-red/10 border border-accent-red/30 rounded-lg text-sm text-accent-red">
-          <AlertCircle className="w-4 h-4 flex-shrink-0" />
-          <span className="flex-1">{error}</span>
-          <button onClick={() => setError(null)} className="text-accent-red/60 hover:text-accent-red text-xs">dismiss</button>
-        </div>
-      )}
-
-      {/* Pipeline overview bar */}
-      <div className="flex flex-wrap items-center gap-3 bg-bg-secondary rounded-xl border border-border-primary px-5 py-3">
-        <div className="flex items-center gap-2">
-          <div className={'w-2 h-2 rounded-full ' + (mlStatus?.ml_logging_enabled ? 'bg-accent-green' : 'bg-text-tertiary')} />
-          <span className="text-xs text-text-secondary">Logging {mlStatus?.ml_logging_enabled ? 'On' : 'Off'}</span>
-        </div>
-        <span className="text-border-primary">|</span>
-        <span className="text-xs text-text-secondary">{mlStatus?.total_decisions ?? 0} decisions</span>
-        <span className="text-border-primary">|</span>
-        <span className="text-xs text-text-secondary">{trainDataset ? `${trainDataset.samples.toLocaleString()} training samples` : 'No dataset'}</span>
-        <span className="text-border-primary">|</span>
-        <span className="text-xs text-text-secondary">{(dataStatus?.checkpoints?.length ?? 0)} checkpoints</span>
-        <span className="text-border-primary">|</span>
-        <StatusBadge
-          variant={hasModel ? 'success' : 'neutral'}
-          label={hasModel ? `Model on ${modelInfo?.device ?? '?'}` : 'No model'}
-        />
-        {anyRunning && (
-          <>
-            <span className="text-border-primary">|</span>
-            <span className="text-xs font-medium text-accent-blue animate-pulse">Pipeline running...</span>
-          </>
-        )}
-      </div>
-
-      {/* ═══ Phase 1: Data Collection ═══ */}
-      <Section title="Phase 1 — Data Collection" icon={<FileText className="w-4 h-4" />} color="text-accent-teal">
-        <div className="flex items-center justify-between">
-          <p className="text-xs text-text-secondary">
-            Run batch simulations with ML logging enabled to collect decision data.
-          </p>
-          <button
-            onClick={handleToggleLogging}
-            className={'flex items-center gap-2 px-3 py-1.5 text-xs font-medium rounded-lg border transition-colors ' +
-              (mlStatus?.ml_logging_enabled
-                ? 'bg-accent-green/15 text-accent-green border-accent-green/30 hover:bg-accent-green/25'
-                : 'bg-bg-tertiary text-text-secondary border-border-primary hover:bg-bg-hover'
-              )}
-          >
-            <div className={'w-2 h-2 rounded-full ' + (mlStatus?.ml_logging_enabled ? 'bg-accent-green' : 'bg-text-tertiary')} />
-            {mlStatus?.ml_logging_enabled ? 'Logging Enabled' : 'Enable Logging'}
-          </button>
-        </div>
-
-        {/* Decision files */}
-        {(dataStatus?.decisionFiles?.length ?? 0) > 0 ? (
-          <div className="space-y-1">
-            <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider">Decision Files</h4>
-            <div className="max-h-36 overflow-y-auto space-y-1">
-              {dataStatus!.decisionFiles.map(f => (
-                <div key={f.name} className="flex items-center justify-between px-3 py-1.5 bg-bg-tertiary rounded-lg text-xs">
-                  <span className="text-text-secondary font-mono truncate">{f.name}</span>
-                  <div className="flex items-center gap-3 text-text-tertiary">
-                    <span>{f.decisions.toLocaleString()} decisions</span>
-                    <span>{(f.size / 1024).toFixed(0)} KB</span>
-                  </div>
-                </div>
-              ))}
-            </div>
-          </div>
-        ) : (
-          <div className="text-xs text-text-tertiary italic">No decision files yet. Run batch sims with logging enabled.</div>
-        )}
-      </Section>
-
-      {/* ═══ Phase 2: Dataset & Checkpoints ═══ */}
-      <Section title="Phase 2 — Dataset & Model Artifacts" icon={<Database className="w-4 h-4" />} color="text-accent-purple">
-        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-          {/* Dataset splits */}
-          <div className="space-y-2">
-            <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider">Dataset Splits</h4>
-            {Object.keys(dataStatus?.datasets ?? {}).length > 0 ? (
-              <div className="grid grid-cols-3 gap-2">
-                {(['train', 'val', 'test'] as const).map(split => {
-                  const ds = dataStatus?.datasets?.[split]
-                  return (
-                    <div key={split} className="px-3 py-2 bg-bg-tertiary rounded-lg">
-                      <p className="text-[10px] text-text-tertiary uppercase">{split}</p>
-                      {ds ? (
-                        <>
-                          <p className="text-sm font-bold text-text-primary">{ds.samples.toLocaleString()}</p>
-                          <p className="text-[10px] text-text-tertiary">{ds.features} features</p>
-                        </>
-                      ) : (
-                        <p className="text-xs text-text-tertiary italic">Not built</p>
-                      )}
-                    </div>
-                  )
-                })}
-              </div>
-            ) : (
-              <p className="text-xs text-text-tertiary italic">No dataset built yet. Training will build it automatically.</p>
-            )}
-          </div>
-
-          {/* Checkpoints */}
-          <div className="space-y-2">
-            <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider">Checkpoints</h4>
-            {(dataStatus?.checkpoints?.length ?? 0) > 0 ? (
-              <div className="max-h-28 overflow-y-auto space-y-1">
-                {dataStatus!.checkpoints.map(ckpt => (
-                  <div key={ckpt.name} className="flex items-center justify-between px-3 py-1.5 bg-bg-tertiary rounded-lg text-xs">
-                    <span className="text-text-secondary font-mono truncate">{ckpt.name}</span>
-                    <span className="text-text-tertiary">{(ckpt.size / 1024 / 1024).toFixed(1)} MB</span>
-                  </div>
-                ))}
-              </div>
-            ) : (
-              <p className="text-xs text-text-tertiary italic">No checkpoints yet. Train a model to generate them.</p>
-            )}
-          </div>
-        </div>
-
-        {/* Model info + reload */}
-        <div className="flex items-center justify-between pt-2 border-t border-border-primary">
-          <div className="flex items-center gap-3">
-            <Cpu className="w-4 h-4 text-text-tertiary" />
-            <div className="text-xs">
-              {hasModel ? (
-                <span className="text-accent-green font-medium">
-                  Model loaded on {modelInfo?.device} | {modelInfo?.input_dim} features | {modelInfo?.num_actions} actions
-                </span>
-              ) : (
-                <span className="text-text-tertiary">No model loaded{modelInfo?.error ? ` — ${modelInfo.error}` : ''}</span>
-              )}
-            </div>
-          </div>
-          <button
-            onClick={handleReloadModel}
-            disabled={reloading}
-            className="flex items-center gap-1.5 px-3 py-1.5 text-xs font-medium bg-bg-tertiary text-text-secondary rounded-lg hover:bg-bg-hover border border-border-primary transition-colors disabled:opacity-50"
-          >
-            {reloading ? <Spinner size="sm" /> : <RotateCw className="w-3 h-3" />}
-            Reload Model
-          </button>
-        </div>
-
-        {/* Eval results */}
-        {dataStatus?.evalResults && (
-          <div className="pt-2 border-t border-border-primary space-y-2">
-            <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider flex items-center gap-2">
-              <CheckCircle className="w-3.5 h-3.5 text-accent-green" />
-              Latest Evaluation
-            </h4>
-            <div className="grid grid-cols-2 md:grid-cols-4 gap-2">
-              {Object.entries(dataStatus.evalResults).map(([k, v]) => (
-                <MetricCard
-                  key={k}
-                  label={k.replace(/_/g, ' ')}
-                  value={typeof v === 'number' ? (k.includes('accuracy') || k.includes('rate') ? `${(v * 100).toFixed(1)}%` : v.toFixed(4)) : String(v)}
-                  accent={k.includes('accuracy') ? 'text-accent-green' : undefined}
-                />
-              ))}
-            </div>
-          </div>
-        )}
-      </Section>
-
-      {/* ═══ Phase 3: Supervised Training ═══ */}
-      <Section title="Phase 3 — Supervised Training" icon={<Activity className="w-4 h-4" />}>
-        {/* Config */}
-        <div className="space-y-3">
-          <div className="grid grid-cols-2 gap-3">
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Epochs</label>
-              <input type="number" min={1} max={1000} value={epochs} onChange={e => setEpochs(Number(e.target.value))}
-                disabled={isTraining}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Learning Rate</label>
-              <input type="number" min={0.00001} max={1} step={0.0001} value={lr} onChange={e => setLr(Number(e.target.value))}
-                disabled={isTraining}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-          </div>
-
-          {/* Advanced toggle */}
-          <button onClick={() => setShowSupAdvanced(!showSupAdvanced)} className="flex items-center gap-1 text-xs text-text-tertiary hover:text-text-secondary transition-colors">
-            <Settings className="w-3 h-3" />
-            {showSupAdvanced ? 'Hide' : 'Show'} advanced options
-          </button>
-          {showSupAdvanced && (
-            <div className="grid grid-cols-3 gap-3 animate-fade-in">
-              <div>
-                <label className="text-xs text-text-tertiary block mb-1">Batch Size</label>
-                <input type="number" min={16} max={2048} value={batchSize} onChange={e => setBatchSize(Number(e.target.value))}
-                  disabled={isTraining}
-                  className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-              </div>
-              <div>
-                <label className="text-xs text-text-tertiary block mb-1">Early Stop Patience</label>
-                <input type="number" min={1} max={100} value={patience} onChange={e => setPatience(Number(e.target.value))}
-                  disabled={isTraining}
-                  className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-              </div>
-              <div className="flex items-end pb-1">
-                <label className="flex items-center gap-2 text-xs text-text-secondary cursor-pointer select-none">
-                  <input type="checkbox" checked={rebuildDataset} onChange={e => setRebuildDataset(e.target.checked)}
-                    disabled={isTraining}
-                    className="rounded border-border-primary bg-bg-tertiary text-accent-blue focus:ring-accent-blue/30 w-3.5 h-3.5" />
-                  Rebuild dataset
-                </label>
-              </div>
-            </div>
-          )}
-        </div>
-
-        {/* Training status / start button */}
-        {isTraining || (trainStatus?.phase && trainStatus.phase !== 'idle') ? (
-          <div className="space-y-3 bg-bg-tertiary/50 rounded-xl p-4 border border-border-primary">
-            <div className="flex items-center justify-between">
-              <div className="flex items-center gap-2">
-                <PhaseBadge phase={trainStatus!.phase} />
-                <span className="text-xs text-text-secondary">{trainStatus!.message}</span>
-              </div>
-              {trainStatus!.started_at && (
-                <span className="text-[10px] text-text-tertiary">Started: {new Date(trainStatus!.started_at).toLocaleTimeString()}</span>
-              )}
-            </div>
-
-            {/* Progress bar — only in training phase */}
-            {(trainStatus!.phase === 'training' || trainStatus!.phase === 'done') && trainStatus!.total_epochs > 0 && (
-              <ProgressBar
-                value={trainStatus!.current_epoch}
-                max={trainStatus!.total_epochs}
-                label="Epoch progress"
-              />
-            )}
-
-            {/* Live metrics during training */}
-            {trainStatus!.metrics && (
-              <div className="grid grid-cols-2 md:grid-cols-4 gap-2">
-                {Object.entries(trainStatus!.metrics).map(([k, v]) => {
-                  if (typeof v !== 'number') return null
-                  const isAcc = k.includes('accuracy') || k.includes('acc')
-                  const isLoss = k.includes('loss')
-                  return (
-                    <MetricCard
-                      key={k}
-                      label={k.replace(/_/g, ' ')}
-                      value={isAcc ? `${(v * 100).toFixed(1)}%` : v.toFixed(4)}
-                      accent={isAcc ? 'text-accent-green' : isLoss ? 'text-accent-amber' : undefined}
-                    />
-                  )
-                })}
-              </div>
-            )}
-
-            {/* Final result */}
-            {trainStatus!.phase === 'done' && trainStatus!.result && (
-              <div className="pt-2 border-t border-border-primary space-y-2">
-                <h4 className="text-xs font-semibold text-accent-green flex items-center gap-1.5">
-                  <CheckCircle className="w-3.5 h-3.5" /> Training Complete
-                </h4>
-                <div className="grid grid-cols-2 md:grid-cols-4 gap-2">
-                  <MetricCard label="Device" value={trainStatus!.result.device} />
-                  <MetricCard label="Checkpoint" value={trainStatus!.result.checkpoint.split('/').pop() || '—'} />
-                  {trainStatus!.result.evaluation && Object.entries(trainStatus!.result.evaluation).map(([k, v]) => (
-                    typeof v === 'number' ? (
-                      <MetricCard key={k} label={k.replace(/_/g, ' ')}
-                        value={k.includes('accuracy') ? `${(v * 100).toFixed(1)}%` : v.toFixed(4)}
-                        accent={k.includes('accuracy') ? 'text-accent-green' : undefined} />
-                    ) : null
-                  ))}
-                </div>
-              </div>
-            )}
-
-            {/* Error state */}
-            {trainStatus!.phase === 'error' && trainStatus!.error && (
-              <div className="flex items-start gap-2 bg-accent-red/10 border border-accent-red/20 rounded-lg px-3 py-2">
-                <AlertCircle className="w-4 h-4 text-accent-red mt-0.5 flex-shrink-0" />
-                <span className="text-xs text-accent-red">{trainStatus!.error}</span>
-              </div>
-            )}
-          </div>
-        ) : (
-          <div className="flex items-center gap-3">
-            <button
-              onClick={handleStartTrain}
-              disabled={startingTrain || !hasDecisions || isPpo}
-              className="flex items-center gap-2 px-4 py-2.5 bg-accent-blue/15 text-accent-blue text-sm font-medium rounded-lg hover:bg-accent-blue/25 border border-accent-blue/30 transition-colors disabled:opacity-40 disabled:cursor-not-allowed"
-            >
-              {startingTrain ? <Spinner size="sm" /> : <Play className="w-4 h-4" />}
-              Start Training
-            </button>
-            {!hasDecisions && (
-              <span className="text-xs text-text-tertiary italic">Enable logging and run batch sims first to generate decision data.</span>
-            )}
-          </div>
-        )}
-      </Section>
-
-      {/* ═══ Phase 4: PPO Reinforcement Learning ═══ */}
-      <Section title="Phase 4 — PPO Reinforcement Learning" icon={<Zap className="w-4 h-4" />} color="text-accent-purple" defaultOpen={false}>
-        <p className="text-xs text-text-secondary">
-          Fine-tune the supervised model using PPO self-play against an opponent policy.
-        </p>
-
-        {/* Config */}
-        <div className="grid grid-cols-2 gap-3">
-          <div>
-            <label className="text-xs text-text-tertiary block mb-1">Iterations</label>
-            <input type="number" min={1} max={1000} value={ppoIterations} onChange={e => setPpoIterations(Number(e.target.value))}
-              disabled={isPpo}
-              className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-          </div>
-          <div>
-            <label className="text-xs text-text-tertiary block mb-1">Opponent</label>
-            <select value={ppoOpponent} onChange={e => setPpoOpponent(e.target.value)}
-              disabled={isPpo}
-              className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50">
-              <option value="heuristic">Heuristic</option>
-              <option value="random">Random</option>
-              <option value="self">Self-Play</option>
-            </select>
-          </div>
-        </div>
-
-        <button onClick={() => setShowPpoAdvanced(!showPpoAdvanced)} className="flex items-center gap-1 text-xs text-text-tertiary hover:text-text-secondary transition-colors">
-          <Settings className="w-3 h-3" />
-          {showPpoAdvanced ? 'Hide' : 'Show'} advanced options
-        </button>
-        {showPpoAdvanced && (
-          <div className="grid grid-cols-3 gap-3 animate-fade-in">
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Episodes / Iter</label>
-              <input type="number" min={1} max={512} value={ppoEpisodes} onChange={e => setPpoEpisodes(Number(e.target.value))}
-                disabled={isPpo}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">PPO Epochs</label>
-              <input type="number" min={1} max={20} value={ppoEpochs} onChange={e => setPpoEpochs(Number(e.target.value))}
-                disabled={isPpo}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Batch Size</label>
-              <input type="number" min={16} max={2048} value={ppoBatchSize} onChange={e => setPpoBatchSize(Number(e.target.value))}
-                disabled={isPpo}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Learning Rate</label>
-              <input type="number" min={0.000001} max={0.01} step={0.0001} value={ppoLr} onChange={e => setPpoLr(Number(e.target.value))}
-                disabled={isPpo}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Clip Epsilon</label>
-              <input type="number" min={0.05} max={0.5} step={0.05} value={ppoClipEps} onChange={e => setPpoClipEps(Number(e.target.value))}
-                disabled={isPpo}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-            <div>
-              <label className="text-xs text-text-tertiary block mb-1">Entropy Coeff</label>
-              <input type="number" min={0} max={0.1} step={0.005} value={ppoEntropy} onChange={e => setPpoEntropy(Number(e.target.value))}
-                disabled={isPpo}
-                className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-            </div>
-          </div>
-        )}
-
-        {/* PPO running status */}
-        {isPpo || (ppoStatus?.phase && ppoStatus.phase !== 'idle') ? (
-          <div className="space-y-3 bg-bg-tertiary/50 rounded-xl p-4 border border-border-primary">
-            <div className="flex items-center gap-2">
-              <PhaseBadge phase={ppoStatus!.phase} />
-              <span className="text-xs text-text-secondary">{ppoStatus!.message}</span>
-            </div>
-
-            {(ppoStatus!.phase === 'training' || ppoStatus!.phase === 'done') && ppoStatus!.total_iterations > 0 && (
-              <ProgressBar
-                value={ppoStatus!.iteration}
-                max={ppoStatus!.total_iterations}
-                label="PPO iteration"
-                color="bg-accent-purple"
-              />
-            )}
-
-            {ppoStatus!.metrics && (
-              <div className="grid grid-cols-2 md:grid-cols-4 gap-2">
-                {ppoStatus!.metrics.win_rate != null && (
-                  <MetricCard label="Win Rate" value={`${(ppoStatus!.metrics.win_rate * 100).toFixed(1)}%`} accent="text-accent-green" />
-                )}
-                {ppoStatus!.metrics.avg_reward != null && (
-                  <MetricCard label="Avg Reward" value={ppoStatus!.metrics.avg_reward.toFixed(3)} accent="text-accent-amber" />
-                )}
-                {ppoStatus!.metrics.policy_loss != null && (
-                  <MetricCard label="Policy Loss" value={ppoStatus!.metrics.policy_loss.toFixed(4)} />
-                )}
-                {ppoStatus!.metrics.entropy != null && (
-                  <MetricCard label="Entropy" value={ppoStatus!.metrics.entropy.toFixed(4)} />
-                )}
-              </div>
-            )}
-
-            {ppoStatus!.phase === 'done' && ppoStatus!.result && (
-              <div className="flex items-center gap-2 pt-2 border-t border-border-primary">
-                <CheckCircle className="w-3.5 h-3.5 text-accent-green" />
-                <span className="text-xs text-accent-green font-medium">
-                  PPO Training Complete — Best Win Rate: {
-                    typeof ppoStatus!.result.best_win_rate === 'number'
-                      ? `${(ppoStatus!.result.best_win_rate as number * 100).toFixed(1)}%`
-                      : '—'
-                  }
-                </span>
-              </div>
-            )}
-
-            {ppoStatus!.phase === 'error' && ppoStatus!.error && (
-              <div className="flex items-start gap-2 bg-accent-red/10 border border-accent-red/20 rounded-lg px-3 py-2">
-                <AlertCircle className="w-4 h-4 text-accent-red mt-0.5 flex-shrink-0" />
-                <span className="text-xs text-accent-red">{ppoStatus!.error}</span>
-              </div>
-            )}
-          </div>
-        ) : (
-          <button
-            onClick={handleStartPpo}
-            disabled={startingPpo || isTraining || !hasModel}
-            className="flex items-center gap-2 px-4 py-2.5 bg-accent-purple/15 text-accent-purple text-sm font-medium rounded-lg hover:bg-accent-purple/25 border border-accent-purple/30 transition-colors disabled:opacity-40 disabled:cursor-not-allowed"
-          >
-            {startingPpo ? <Spinner size="sm" /> : <Play className="w-4 h-4" />}
-            Start PPO Training
-          </button>
-        )}
-        {!hasModel && !(isPpo || (ppoStatus?.phase && ppoStatus.phase !== 'idle')) && (
-          <p className="text-xs text-text-tertiary italic">Train a supervised model first (Phase 3) before running PPO.</p>
-        )}
-      </Section>
-
-      {/* ═══ Phase 5: Tournament Evaluation ═══ */}
-      <Section title="Phase 5 — Tournament Evaluation" icon={<Swords className="w-4 h-4" />} color="text-accent-amber" defaultOpen={false}>
-        <p className="text-xs text-text-secondary">
-          Pit the trained model against heuristic, random, and other policy variants.
-        </p>
-
-        <div className="grid grid-cols-2 gap-3">
-          <div>
-            <label className="text-xs text-text-tertiary block mb-1">Episodes per Matchup</label>
-            <input type="number" min={10} max={1000} value={tournEpisodes} onChange={e => setTournEpisodes(Number(e.target.value))}
-              disabled={isTourn}
-              className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50" />
-          </div>
-          <div>
-            <label className="text-xs text-text-tertiary block mb-1">Playstyle</label>
-            <select value={tournPlaystyle} onChange={e => setTournPlaystyle(e.target.value)}
-              disabled={isTourn}
-              className="w-full px-3 py-2 bg-bg-tertiary border border-border-primary rounded-lg text-sm text-text-primary focus:outline-none focus:border-accent-blue/50 transition-all disabled:opacity-50">
-              <option value="midrange">Midrange</option>
-              <option value="aggro">Aggro</option>
-              <option value="control">Control</option>
-              <option value="combo">Combo</option>
-            </select>
-          </div>
-        </div>
-
-        {/* Tournament status */}
-        {isTourn || (tournStatus?.phase && tournStatus.phase !== 'idle') ? (
-          <div className="space-y-3 bg-bg-tertiary/50 rounded-xl p-4 border border-border-primary">
-            <div className="flex items-center gap-2">
-              <PhaseBadge phase={tournStatus!.phase} />
-              <span className="text-xs text-text-secondary">{tournStatus!.message}</span>
-            </div>
-
-            {tournStatus!.phase === 'error' && tournStatus!.error && (
-              <div className="flex items-start gap-2 bg-accent-red/10 border border-accent-red/20 rounded-lg px-3 py-2">
-                <AlertCircle className="w-4 h-4 text-accent-red mt-0.5 flex-shrink-0" />
-                <span className="text-xs text-accent-red">{tournStatus!.error}</span>
-              </div>
-            )}
-          </div>
-        ) : (
-          <button
-            onClick={handleStartTournament}
-            disabled={startingTourn || isTraining || isPpo}
-            className="flex items-center gap-2 px-4 py-2.5 bg-accent-amber/15 text-accent-amber text-sm font-medium rounded-lg hover:bg-accent-amber/25 border border-accent-amber/30 transition-colors disabled:opacity-40 disabled:cursor-not-allowed"
-          >
-            {startingTourn ? <Spinner size="sm" /> : <Trophy className="w-4 h-4" />}
-            Start Tournament
-          </button>
-        )}
-
-        {/* Tournament results */}
-        {(tournStatus?.result?.players?.length ?? 0) > 0 && (
-          <div className="pt-2 border-t border-border-primary space-y-2">
-            <h4 className="text-xs font-semibold text-text-tertiary uppercase tracking-wider flex items-center gap-2">
-              <Trophy className="w-3.5 h-3.5 text-accent-amber" />
-              Leaderboard
-            </h4>
-            <table className="w-full text-sm">
-              <thead>
-                <tr className="border-b border-border-primary">
-                  <th className="px-3 py-2 text-left text-xs text-text-tertiary font-medium w-8">#</th>
-                  <th className="px-3 py-2 text-left text-xs text-text-tertiary font-medium">Policy</th>
-                  <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium">Wins</th>
-                  <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium">Games</th>
-                  <th className="px-3 py-2 text-right text-xs text-text-tertiary font-medium">Win Rate</th>
-                </tr>
-              </thead>
-              <tbody className="divide-y divide-border-primary">
-                {tournStatus!.result!.players
-                  .sort((a, b) => b.win_rate - a.win_rate)
-                  .map((p, i) => (
-                    <tr key={p.name} className="hover:bg-bg-hover transition-colors">
-                      <td className="px-3 py-2 text-text-tertiary text-xs">
-                        {i === 0 ? <Trophy className="w-3.5 h-3.5 text-accent-amber" /> : i + 1}
-                      </td>
-                      <td className="px-3 py-2">
-                        <span className="text-text-primary font-medium capitalize">{p.name}</span>
-                      </td>
-                      <td className="px-3 py-2 text-right text-text-secondary">{p.wins}</td>
-                      <td className="px-3 py-2 text-right text-text-secondary">{p.games}</td>
-                      <td className={'px-3 py-2 text-right font-semibold ' + (i === 0 ? 'text-accent-green' : 'text-accent-blue')}>
-                        {(p.win_rate * 100).toFixed(1)}%
-                      </td>
-                    </tr>
-                  ))}
-              </tbody>
-            </table>
-          </div>
-        )}
-      </Section>
-    </div>
-  )
-}

frontend/commander-ai-lab-ui/src/types/index.ts

@@ -1,562 +0,0 @@
-// ═══════════════════════════════════════════════════════════
-// Commander AI Lab — TypeScript Type Definitions
-// Derived from the FastAPI backend's Pydantic models + SQLite schema
-// ═══════════════════════════════════════════════════════════
-
-// ── Cards & Collection ──────────────────────────────────────
-
-export interface CollectionCard {
-  id: number
-  name: string
-  scryfall_id: string
-  set_code: string
-  set_name: string
-  collector_number: string
-  rarity: string
-  type_line: string
-  mana_cost: string
-  cmc: number
-  oracle_text: string
-  color_identity: string[]
-  quantity: number
-  foil_quantity: number
-  condition: string
-  tcg_price: number | null
-  foil_price: number | null
-  image_url: string
-  edhrec_rank: number | null
-  keywords: string
-  added_date: string
-  updated_date: string
-}
-
-export interface CollectionFilters {
-  q?: string
-  type_line?: string
-  color?: string
-  rarity?: string
-  set_code?: string
-  cmc_min?: number
-  cmc_max?: number
-  price_min?: number
-  price_max?: number
-  owned_only?: boolean
-  sort_by?: string
-  sort_dir?: 'asc' | 'desc'
-  page?: number
-  page_size?: number
-}
-
-export interface CollectionStats {
-  total_cards: number
-  total_unique: number
-  total_value: number
-  sets_count: number
-}
-
-export interface SetInfo {
-  code: string
-  name: string
-  card_count?: number
-}
-
-// ── Scan ─────────────────────────────────────────────────────
-
-export interface ScanResult {
-  matches: ScanMatch[]
-  image_url?: string
-}
-
-export interface ScanMatch {
-  name: string
-  set_code: string
-  set_name: string
-  collector_number: string
-  scryfall_id: string
-  confidence: number
-  image_url: string
-  type_line: string
-  oracle_text: string
-  mana_cost: string
-  tcg_price: number | null
-}
-
-// ── Decks ────────────────────────────────────────────────────
-
-export interface Deck {
-  id: number
-  name: string
-  commander: string
-  commander_scryfall_id?: string
-  commander_image_url?: string
-  color_identity: string[]
-  format: string
-  card_count: number
-  total_price: number
-  created_date: string
-  updated_date: string
-}
-
-export interface DeckCard {
-  id: number
-  deck_id: number
-  name: string
-  scryfall_id: string
-  quantity: number
-  is_commander: boolean
-  category: string
-  type_line: string
-  mana_cost: string
-  cmc: number
-  oracle_text: string
-  tcg_price: number | null
-  image_url: string
-  owned_qty: number
-  set_code: string
-}
-
-export interface DeckAnalysis {
-  card_count: number
-  land_count: number
-  creature_count: number
-  noncreature_count: number
-  avg_cmc: number
-  mana_curve: Record<number, number>
-  color_distribution: Record<string, number>
-  type_distribution: Record<string, number>
-  total_price: number
-  owned_count: number
-  missing_count: number
-}
-
-export interface DeckRecommendation {
-  name: string
-  scryfall_id: string
-  type_line: string
-  mana_cost: string
-  oracle_text: string
-  image_url: string
-  tcg_price: number | null
-  reason: string
-  score: number
-  owned: boolean
-}
-
-// ── EDHREC Recommendations ──────────────────────────────────
-
-export interface EdhRecCard {
-  name: string
-  type_line: string
-  role: string
-  roles: string[]
-  inclusion_pct: number | null
-  synergy_score: number | null
-  owned: boolean
-  owned_qty: number
-  scryfall_id: string
-  image_url: string | null
-}
-
-export interface EdhRecsResponse {
-  commander: string
-  source: string
-  total: number
-  recommendations: EdhRecCard[]
-}
-
-// ── Collection Recommendations ──────────────────────────────
-
-export interface CollectionRecCard {
-  id: number
-  scryfall_id: string
-  name: string
-  type_line: string
-  card_type: string
-  cmc: number
-  color_identity: string[]
-  owned_qty: number
-  roles: string[]
-  score: number
-  image_url: string | null
-}
-
-export interface CollectionRecsResponse {
-  shortfall_types: string[]
-  role_filter: string[]
-  grouped: Record<string, CollectionRecCard[]>
-  total: number
-}
-
-// ── V3 Deck Generator ────────────────────────────────────────
-
-export interface DeckGenV3Request {
-  commander_name: string
-  strategy?: string
-  target_bracket: number
-  budget_usd?: number
-  budget_mode?: 'total' | 'per_card'
-  omit_cards?: string[]
-  use_collection?: boolean
-  run_substitution?: boolean
-  model?: string
-  deck_name?: string
-}
-
-export interface DeckGenV3Status {
-  initialized: boolean
-  pplx_configured: boolean
-  model: string | null
-  embeddings_loaded: boolean
-  embedding_cards: number
-  error: string | null
-}
-
-export interface DeckGenV3Card {
-  name: string
-  quantity: number
-  category: string
-  type_line: string
-  mana_cost: string
-  cmc: number
-  role: string
-  reason: string
-  tcg_price: number | null
-  image_url: string
-  owned: boolean
-  owned_qty: number
-  scryfall_id: string
-  is_substitute: boolean
-  original_name: string | null
-  substitution_reason: string | null
-  similarity_score: number | null
-}
-
-export interface DeckGenV3Result {
-  commander: {
-    name: string
-    image_url: string
-    type_line: string
-    color_identity: string[]
-    mana_cost: string
-    oracle_text: string
-  }
-  cards: DeckGenV3Card[]
-  stats: DeckAnalysis
-  strategy: string
-  bracket: number
-  model: string
-  substitution?: {
-    owned: number
-    substituted: number
-    missing: number
-  }
-}
-
-// ── Simulation ───────────────────────────────────────────────
-
-export interface SimConfig {
-  deck_names: string[]
-  num_games: number
-  threads: number
-  use_deepseek?: boolean
-}
-
-export interface SimStatus {
-  running: boolean
-  sim_id: string
-  progress?: number
-  games_completed?: number
-  total_games?: number
-}
-
-export interface SimResult {
-  sim_id: string
-  decks: SimDeckResult[]
-  total_games: number
-  duration_ms: number
-  timestamp: string
-}
-
-export interface SimDeckResult {
-  name: string
-  wins: number
-  losses: number
-  win_rate: number
-  avg_turn: number
-}
-
-// ── Batch Sim (Lab) ──────────────────────────────────────────
-
-export interface LabDeck {
-  name: string
-  source: string
-  path: string
-  card_count: number
-}
-
-export interface LabStartRequest {
-  decks: string[]
-  games: number
-  threads?: number
-  use_deepseek?: boolean
-  deepseek_deck?: string
-}
-
-export interface LabStatus {
-  running: boolean
-  run_id: string
-  games_completed: number
-  total_games: number
-  current_decks: string[]
-  error: string | null
-}
-
-export interface LabResult {
-  run_id: string
-  decks: LabDeckResult[]
-  total_games: number
-  timestamp: string
-}
-
-export interface LabDeckResult {
-  name: string
-  wins: number
-  games: number
-  win_rate: number
-  avg_turns: number
-  avg_life_remaining: number
-}
-
-export interface LabHistoryEntry {
-  run_id: string
-  timestamp: string
-  decks: string[]
-  total_games: number
-}
-
-export interface PreconDeck {
-  name: string
-  filename: string
-  release_date?: string
-  set_name?: string
-  installed: boolean
-}
-
-// ── Coach ────────────────────────────────────────────────────
-
-export interface CoachStatus {
-  llmConnected: boolean
-  llmModel: string | null
-  llmModels: string[]
-  embeddingsLoaded: boolean
-  embeddingCards: number
-  deckReportsAvailable: number
-  error: string | null
-}
-
-export interface CoachDeck {
-  deck_id: number
-  deck_name: string
-  commander: string
-  card_count: number
-  has_report: boolean
-  report_count: number
-  last_report_date: string | null
-}
-
-export interface CoachGoals {
-  targetPowerLevel?: number | null
-  metaFocus?: string | null
-  budget?: string | null
-  focusAreas?: string[]
-}
-
-export interface CoachMessage {
-  role: 'user' | 'assistant'
-  content: string
-}
-
-export interface CoachChatResponse {
-  content: string
-  model: string
-  prompt_tokens: number
-  completion_tokens: number
-}
-
-export interface CoachSession {
-  sessionId: string
-  deckId: string
-  timestamp: string
-  summary: string
-  suggestedCuts: CoachSuggestedCut[]
-  suggestedAdds: CoachSuggestedAdd[]
-  heuristicHints: string[]
-  manaBaseAdvice: string | null
-  rawTextExplanation: string
-  modelUsed: string
-  promptTokens: number
-  completionTokens: number
-  goals: CoachGoals | null
-}
-
-export interface CoachSuggestedCut {
-  cardName: string
-  reason: string
-  replacementOptions: string[]
-  currentImpactScore: number
-}
-
-export interface CoachSuggestedAdd {
-  cardName: string
-  role: string
-  reason: string
-  synergyWith: string[]
-  estimatedManaValue: number | null
-}
-
-export interface CoachSessionSummary {
-  sessionId: string
-  deckId: string
-  timestamp: string
-  summary: string
-  cutsCount: number
-  addsCount: number
-}
-
-export interface CoachApplyResult {
-  cuts: { name: string; status: string }[]
-  adds: { name: string; scryfall_id?: string; status: string }[]
-  errors: { name: string; error: string }[]
-  total_cuts: number
-  total_adds: number
-}
-
-export interface CoachCardLikeResult {
-  name: string
-  similarity: number
-  types: string
-  mana_value: number
-  mana_cost: string
-  text: string
-  owned_qty: number
-  image_url: string | null
-  tcg_price: number | null
-}
-
-// ── ML Training ──────────────────────────────────────────────
-
-/** GET /api/ml/status */
-export interface MLStatus {
-  ml_logging_enabled: boolean
-  training_files: { file: string; decisions: number; size_kb: number }[]
-  total_decisions: number
-  total_files: number
-}
-
-/** GET /api/ml/data/status */
-export interface MLDataStatus {
-  decisionFiles: { name: string; size: number; decisions: number }[]
-  totalDecisions: number
-  datasets: Record<string, { samples: number; features: number; size: number }>
-  checkpoints: { name: string; size: number; modified: string }[]
-  evalResults: Record<string, unknown> | null
-  policyLoaded: boolean
-}
-
-/** GET /api/ml/train/status */
-export interface MLTrainStatus {
-  running: boolean
-  progress: number
-  total_epochs: number
-  current_epoch: number
-  phase: 'idle' | 'starting' | 'building' | 'training' | 'evaluating' | 'done' | 'error'
-  message: string
-  metrics: Record<string, unknown> | null
-  result: {
-    training: Record<string, unknown>
-    evaluation: Record<string, unknown> | null
-    checkpoint: string
-    device: string
-  } | null
-  error: string | null
-  started_at: string | null
-}
-
-/** GET /api/ml/train/ppo/status */
-export interface PPOTrainStatus {
-  running: boolean
-  iteration: number
-  total_iterations: number
-  phase: 'idle' | 'starting' | 'training' | 'done' | 'error'
-  message: string
-  metrics: {
-    avg_reward?: number
-    win_rate?: number
-    policy_loss?: number
-    value_loss?: number
-    entropy?: number
-    [key: string]: unknown
-  } | null
-  result: Record<string, unknown> | null
-  error: string | null
-}
-
-/** GET /api/ml/tournament/status */
-export interface TournamentStatus {
-  running: boolean
-  phase: 'idle' | 'starting' | 'running' | 'done' | 'error'
-  message: string
-  result: TournamentResults | null
-  error: string | null
-}
-
-export interface TournamentResults {
-  players: TournamentPlayer[]
-  total_matches: number
-  matchups?: Record<string, unknown>
-}
-
-export interface TournamentPlayer {
-  name: string
-  wins: number
-  games: number
-  win_rate: number
-}
-
-/** GET /api/ml/model */
-export interface MLModelInfo {
-  loaded: boolean
-  device?: string
-  input_dim?: number
-  num_actions?: number
-  checkpoint_path?: string
-  error?: string
-  torch_available?: boolean
-}
-
-// ── DeepSeek ─────────────────────────────────────────────────
-
-export interface DeepSeekStatus {
-  connected: boolean
-  model: string | null
-  base_url: string
-}
-
-// ── Commander Search ─────────────────────────────────────────
-
-export interface CommanderSearchResult {
-  name: string
-  type_line: string
-  color_identity: string[]
-  mana_cost: string
-  image_url: string
-  oracle_text: string
-  scryfall_id: string
-  in_collection: boolean
-}
-
-// ── Perplexity ───────────────────────────────────────────────
-
-export interface PplxStatus {
-  configured: boolean
-}

frontend/commander-ai-lab-ui/tsconfig.app.json

@@ -1,28 +0,0 @@
-{
-  "compilerOptions": {
-    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
-    "target": "ES2022",
-    "useDefineForClassFields": true,
-    "lib": ["ES2022", "DOM", "DOM.Iterable"],
-    "module": "ESNext",
-    "types": ["vite/client"],
-    "skipLibCheck": true,
-
-    /* Bundler mode */
-    "moduleResolution": "bundler",
-    "allowImportingTsExtensions": true,
-    "verbatimModuleSyntax": true,
-    "moduleDetection": "force",
-    "noEmit": true,
-    "jsx": "react-jsx",
-
-    /* Linting */
-    "strict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
-    "erasableSyntaxOnly": true,
-    "noFallthroughCasesInSwitch": true,
-    "noUncheckedSideEffectImports": true
-  },
-  "include": ["src"]
-}

frontend/commander-ai-lab-ui/tsconfig.json

@@ -1,7 +0,0 @@
-{
-  "files": [],
-  "references": [
-    { "path": "./tsconfig.app.json" },
-    { "path": "./tsconfig.node.json" }
-  ]
-}

frontend/commander-ai-lab-ui/tsconfig.node.json

@@ -1,26 +0,0 @@
-{
-  "compilerOptions": {
-    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
-    "target": "ES2023",
-    "lib": ["ES2023"],
-    "module": "ESNext",
-    "types": ["node"],
-    "skipLibCheck": true,
-
-    /* Bundler mode */
-    "moduleResolution": "bundler",
-    "allowImportingTsExtensions": true,
-    "verbatimModuleSyntax": true,
-    "moduleDetection": "force",
-    "noEmit": true,
-
-    /* Linting */
-    "strict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
-    "erasableSyntaxOnly": true,
-    "noFallthroughCasesInSwitch": true,
-    "noUncheckedSideEffectImports": true
-  },
-  "include": ["vite.config.ts"]
-}

frontend/commander-ai-lab-ui/vite.config.ts

@@ -1,28 +0,0 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
-import tailwindcss from '@tailwindcss/vite'
-
-export default defineConfig({
-  plugins: [react(), tailwindcss()],
-  server: {
-    port: 5173,
-    proxy: {
-      '/api': {
-        target: 'http://localhost:8080',
-        changeOrigin: true,
-      },
-    },
-  },
-  build: {
-    outDir: 'dist',
-    sourcemap: false,
-    rollupOptions: {
-      output: {
-        manualChunks: {
-          recharts: ['recharts'],
-          react: ['react', 'react-dom', 'react-router-dom'],
-        },
-      },
-    },
-  },
-})

frontend/eslint.config.js

@@ -1,23 +0,0 @@
-import js from '@eslint/js'
-import globals from 'globals'
-import reactHooks from 'eslint-plugin-react-hooks'
-import reactRefresh from 'eslint-plugin-react-refresh'
-import tseslint from 'typescript-eslint'
-import { defineConfig, globalIgnores } from 'eslint/config'
-
-export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      js.configs.recommended,
-      tseslint.configs.recommended,
-      reactHooks.configs.flat.recommended,
-      reactRefresh.configs.vite,
-    ],
-    languageOptions: {
-      ecmaVersion: 2020,
-      globals: globals.browser,
-    },
-  },
-])

frontend/index.html

@@ -1,13 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>frontend-tmp</title>
-  </head>
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.tsx"></script>
-  </body>
-</html>

frontend/package.json

@@ -1,42 +0,0 @@
-{
-  "name": "commander-ai-lab-frontend",
-  "private": true,
-  "version": "0.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite",
-    "build": "tsc -b && vite build",
-    "lint": "eslint .",
-    "preview": "vite preview",
-    "test": "vitest run",
-    "test:watch": "vitest"
-  },
-  "dependencies": {
-    "clsx": "^2.1.1",
-    "react": "^19.2.4",
-    "react-dom": "^19.2.4",
-    "react-router-dom": "^7.13.1"
-  },
-  "devDependencies": {
-    "@eslint/js": "^9.39.4",
-    "@testing-library/jest-dom": "^6.9.1",
-    "@testing-library/react": "^16.3.2",
-    "@testing-library/user-event": "^14.6.1",
-    "@types/node": "^24.12.0",
-    "@types/react": "^19.2.14",
-    "@types/react-dom": "^19.2.3",
-    "@vitejs/plugin-react": "^6.0.0",
-    "autoprefixer": "^10.4.27",
-    "eslint": "^9.39.4",
-    "eslint-plugin-react-hooks": "^7.0.1",
-    "eslint-plugin-react-refresh": "^0.5.2",
-    "globals": "^17.4.0",
-    "jsdom": "^29.0.0",
-    "postcss": "^8.5.8",
-    "tailwindcss": "^3.4.19",
-    "typescript": "~5.9.3",
-    "typescript-eslint": "^8.56.1",
-    "vite": "^8.0.0",
-    "vitest": "^4.1.0"
-  }
-}

frontend/postcss.config.js

@@ -1,6 +0,0 @@
-export default {
-  plugins: {
-    tailwindcss: {},
-    autoprefixer: {},
-  },
-}

frontend/public/favicon.svg

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frontend/public/icons.svg

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-  </symbol>
-  <symbol id="discord-icon" viewBox="0 0 20 19">
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frontend/src/App.css

@@ -1,184 +0,0 @@
-.counter {
-  font-size: 16px;
-  padding: 5px 10px;
-  border-radius: 5px;
-  color: var(--accent);
-  background: var(--accent-bg);
-  border: 2px solid transparent;
-  transition: border-color 0.3s;
-  margin-bottom: 24px;
-
-  &:hover {
-    border-color: var(--accent-border);
-  }
-  &:focus-visible {
-    outline: 2px solid var(--accent);
-    outline-offset: 2px;
-  }
-}
-
-.hero {
-  position: relative;
-
-  .base,
-  .framework,
-  .vite {
-    inset-inline: 0;
-    margin: 0 auto;
-  }
-
-  .base {
-    width: 170px;
-    position: relative;
-    z-index: 0;
-  }
-
-  .framework,
-  .vite {
-    position: absolute;
-  }
-
-  .framework {
-    z-index: 1;
-    top: 34px;
-    height: 28px;
-    transform: perspective(2000px) rotateZ(300deg) rotateX(44deg) rotateY(39deg)
-      scale(1.4);
-  }
-
-  .vite {
-    z-index: 0;
-    top: 107px;
-    height: 26px;
-    width: auto;
-    transform: perspective(2000px) rotateZ(300deg) rotateX(40deg) rotateY(39deg)
-      scale(0.8);
-  }
-}
-
-#center {
-  display: flex;
-  flex-direction: column;
-  gap: 25px;
-  place-content: center;
-  place-items: center;
-  flex-grow: 1;
-
-  @media (max-width: 1024px) {
-    padding: 32px 20px 24px;
-    gap: 18px;
-  }
-}
-
-#next-steps {
-  display: flex;
-  border-top: 1px solid var(--border);
-  text-align: left;
-
-  & > div {
-    flex: 1 1 0;
-    padding: 32px;
-    @media (max-width: 1024px) {
-      padding: 24px 20px;
-    }
-  }
-
-  .icon {
-    margin-bottom: 16px;
-    width: 22px;
-    height: 22px;
-  }
-
-  @media (max-width: 1024px) {
-    flex-direction: column;
-    text-align: center;
-  }
-}
-
-#docs {
-  border-right: 1px solid var(--border);
-
-  @media (max-width: 1024px) {
-    border-right: none;
-    border-bottom: 1px solid var(--border);
-  }
-}
-
-#next-steps ul {
-  list-style: none;
-  padding: 0;
-  display: flex;
-  gap: 8px;
-  margin: 32px 0 0;
-
-  .logo {
-    height: 18px;
-  }
-
-  a {
-    color: var(--text-h);
-    font-size: 16px;
-    border-radius: 6px;
-    background: var(--social-bg);
-    display: flex;
-    padding: 6px 12px;
-    align-items: center;
-    gap: 8px;
-    text-decoration: none;
-    transition: box-shadow 0.3s;
-
-    &:hover {
-      box-shadow: var(--shadow);
-    }
-    .button-icon {
-      height: 18px;
-      width: 18px;
-    }
-  }
-
-  @media (max-width: 1024px) {
-    margin-top: 20px;
-    flex-wrap: wrap;
-    justify-content: center;
-
-    li {
-      flex: 1 1 calc(50% - 8px);
-    }
-
-    a {
-      width: 100%;
-      justify-content: center;
-      box-sizing: border-box;
-    }
-  }
-}
-
-#spacer {
-  height: 88px;
-  border-top: 1px solid var(--border);
-  @media (max-width: 1024px) {
-    height: 48px;
-  }
-}
-
-.ticks {
-  position: relative;
-  width: 100%;
-
-  &::before,
-  &::after {
-    content: '';
-    position: absolute;
-    top: -4.5px;
-    border: 5px solid transparent;
-  }
-
-  &::before {
-    left: 0;
-    border-left-color: var(--border);
-  }
-  &::after {
-    right: 0;
-    border-right-color: var(--border);
-  }
-}

frontend/src/App.tsx

@@ -1,48 +0,0 @@
-import { BrowserRouter, Routes, Route, Link, useLocation } from 'react-router-dom';
-import LobbyPage from './pages/LobbyPage';
-import RoomPage from './pages/RoomPage';
-import GamePage from './pages/GamePage';
-import SimulatorPage from './pages/SimulatorPage';
-
-function Nav() {
-  const location = useLocation();
-  // Hide nav on active game pages
-  if (location.pathname.startsWith('/game/')) return null;
-  const links = [
-    { to: '/', label: 'Lobby' },
-    { to: '/simulator', label: 'Simulator' },
-  ];
-  return (
-    <nav className="bg-bg-bar border-b border-border-zone px-4 py-2 flex items-center gap-4">
-      <span className="text-sm font-bold text-white mr-4">Commander AI Lab</span>
-      {links.map((l) => (
-        <Link
-          key={l.to}
-          to={l.to}
-          className={`text-sm px-2 py-1 rounded transition-colors ${
-            location.pathname === l.to
-              ? 'text-white bg-accent-blue/20'
-              : 'text-text-muted hover:text-white'
-          }`}
-        >
-          {l.label}
-        </Link>
-      ))}
-    </nav>
-  );
-}
-
-function App() {
-  return (
-    <BrowserRouter>
-      <Nav />
-      <Routes>
-        <Route path="/" element={<LobbyPage />} />
-        <Route path="/room/:roomId" element={<RoomPage />} />
-        <Route path="/game/:gameId" element={<GamePage />} />
-        <Route path="/simulator" element={<SimulatorPage />} />
-      </Routes>
-    </BrowserRouter>
-  );
-}
-export default App;

frontend/src/__tests__/CardChip.test.tsx

@@ -1,35 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { describe, it, expect } from 'vitest';
-import CardChip from '../components/CardChip';
-import type { Card } from '../types/game';
-
-function makeCard(overrides: Partial<Card> = {}): Card {
-  return {
-    name: 'Sol Ring',
-    type: 'Artifact',
-    tapped: false,
-    is_commander: false,
-    oracle: 'Tap: Add CC.',
-    cmc: 1,
-    ...overrides,
-  };
-}
-
-describe('CardChip', () => {
-  it('applies opacity class when tapped', () => {
-    render(<CardChip card={makeCard({ tapped: true })} />);
-    const chip = screen.getByText(/Sol Ring/);
-    expect(chip.closest('span')).toHaveClass('opacity-55');
-  });
-
-  it('shows star for commander cards', () => {
-    render(<CardChip card={makeCard({ is_commander: true })} />);
-    expect(screen.getByText('★')).toBeInTheDocument();
-  });
-
-  it('has hover border class', () => {
-    render(<CardChip card={makeCard()} />);
-    const chip = screen.getByText(/Sol Ring/).closest('span');
-    expect(chip).toHaveClass('hover:border-[#ffdc32]');
-  });
-});

frontend/src/__tests__/GamePage.test.tsx

@@ -1,86 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { describe, it, expect, vi, beforeEach } from 'vitest';
-import { MemoryRouter, Route, Routes } from 'react-router-dom';
-import GamePage from '../pages/GamePage';
-import type { GameState, Card } from '../types/game';
-
-const mockGameState: GameState = {
-  game_id: 'test-game',
-  turn: 1,
-  current_phase: 'main1',
-  active_seat: 0,
-  players: [
-    {
-      seat: 0, name: 'Alice', life: 40, eliminated: false,
-      hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 7,
-    },
-    {
-      seat: 1, name: 'Bob', life: 38, eliminated: false,
-      hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 6,
-    },
-    {
-      seat: 2, name: 'Charlie', life: 40, eliminated: false,
-      hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 7,
-    },
-    {
-      seat: 3, name: 'Diana', life: 35, eliminated: false,
-      hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 5,
-    },
-  ],
-  stack: [],
-  game_over: false,
-  winner: null,
-};
-
-const mockHand: Card[] = [];
-const mockSendMove = vi.fn();
-const mockSendConcede = vi.fn();
-
-vi.mock('../hooks/useGameSocket', () => ({
-  useGameSocket: () => ({
-    gameState: mockGameState,
-    narration: [],
-    thinking: new Set<number>(),
-    hand: mockHand,
-    gameOver: null,
-    status: 'Connected',
-    sendMove: mockSendMove,
-    sendConcede: mockSendConcede,
-  }),
-}));
-
-describe('GamePage integration', () => {
-  beforeEach(() => {
-    vi.clearAllMocks();
-  });
-
-  it('renders all 4 PlayerZone components', () => {
-    render(
-      <MemoryRouter initialEntries={['/game/test-game']}>
-        <Routes>
-          <Route path="/game/:gameId" element={<GamePage />} />
-        </Routes>
-      </MemoryRouter>,
-    );
-
-    // P0: Alice appears in both PhaseBar and PlayerZone, so use getAllByText
-    expect(screen.getAllByText(/P0: Alice/).length).toBeGreaterThanOrEqual(1);
-    expect(screen.getAllByText(/P1: Bob/).length).toBeGreaterThanOrEqual(1);
-    expect(screen.getAllByText(/P2: Charlie/).length).toBeGreaterThanOrEqual(1);
-    expect(screen.getAllByText(/P3: Diana/).length).toBeGreaterThanOrEqual(1);
-  });
-
-  it('renders PhaseBar with current phase', () => {
-    render(
-      <MemoryRouter initialEntries={['/game/test-game']}>
-        <Routes>
-          <Route path="/game/:gameId" element={<GamePage />} />
-        </Routes>
-      </MemoryRouter>,
-    );
-
-    // main1 should be highlighted
-    const main1Buttons = screen.getAllByText('main1');
-    expect(main1Buttons.length).toBeGreaterThan(0);
-  });
-});

frontend/src/__tests__/MoveBar.test.tsx

@@ -1,66 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import userEvent from '@testing-library/user-event';
-import { describe, it, expect, vi } from 'vitest';
-import MoveBar from '../components/MoveBar';
-
-describe('MoveBar', () => {
-  it('calls onPass when pass button is clicked', async () => {
-    const onPass = vi.fn();
-    render(
-      <MoveBar
-        hand={[]}
-        humanSeat={0}
-        onPass={onPass}
-        onConcede={vi.fn()}
-        onPlayCard={vi.fn()}
-        status=""
-      />,
-    );
-
-    await userEvent.click(screen.getByText('Pass Priority'));
-    expect(onPass).toHaveBeenCalledOnce();
-  });
-
-  it('shows confirm dialog on concede', async () => {
-    const onConcede = vi.fn();
-    const confirmSpy = vi.spyOn(window, 'confirm').mockReturnValue(true);
-
-    render(
-      <MoveBar
-        hand={[]}
-        humanSeat={0}
-        onPass={vi.fn()}
-        onConcede={onConcede}
-        onPlayCard={vi.fn()}
-        status=""
-      />,
-    );
-
-    await userEvent.click(screen.getByText('Concede'));
-    expect(confirmSpy).toHaveBeenCalledWith('Are you sure you want to concede?');
-    expect(onConcede).toHaveBeenCalledOnce();
-
-    confirmSpy.mockRestore();
-  });
-
-  it('does not concede if confirm is cancelled', async () => {
-    const onConcede = vi.fn();
-    const confirmSpy = vi.spyOn(window, 'confirm').mockReturnValue(false);
-
-    render(
-      <MoveBar
-        hand={[]}
-        humanSeat={0}
-        onPass={vi.fn()}
-        onConcede={onConcede}
-        onPlayCard={vi.fn()}
-        status=""
-      />,
-    );
-
-    await userEvent.click(screen.getByText('Concede'));
-    expect(onConcede).not.toHaveBeenCalled();
-
-    confirmSpy.mockRestore();
-  });
-});

frontend/src/__tests__/NarrationPanel.test.tsx

@@ -1,38 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { describe, it, expect } from 'vitest';
-import NarrationPanel from '../components/NarrationPanel';
-import type { NarrationLine } from '../types/game';
-
-describe('NarrationPanel', () => {
-  it('renders only 120 lines when given more', () => {
-    const lines: NarrationLine[] = Array.from({ length: 150 }, (_, i) => ({
-      text: `Line ${i}`,
-      isSystem: false,
-      timestamp: Date.now(),
-    }));
-
-    render(<NarrationPanel lines={lines} thinkingSeats={new Set()} />);
-
-    // Should not render the first 30 lines (0-29)
-    expect(screen.queryByText('Line 0')).not.toBeInTheDocument();
-    expect(screen.queryByText('Line 29')).not.toBeInTheDocument();
-
-    // Should render lines 30-149
-    expect(screen.getByText('Line 30')).toBeInTheDocument();
-    expect(screen.getByText('Line 149')).toBeInTheDocument();
-  });
-
-  it('has a scroll container ref', () => {
-    const lines: NarrationLine[] = [
-      { text: 'Hello world', isSystem: false, timestamp: Date.now() },
-    ];
-
-    const { container } = render(
-      <NarrationPanel lines={lines} thinkingSeats={new Set()} />,
-    );
-
-    // The container div has overflow-y-auto
-    const panel = container.firstChild as HTMLElement;
-    expect(panel).toHaveClass('overflow-y-auto');
-  });
-});

frontend/src/__tests__/PhaseBar.test.tsx

@@ -1,38 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { describe, it, expect } from 'vitest';
-import PhaseBar from '../components/PhaseBar';
-import type { Player } from '../types/game';
-
-const players: Player[] = [
-  {
-    seat: 0, name: 'Alice', life: 40, eliminated: false,
-    hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 7,
-  },
-  {
-    seat: 1, name: 'Bob', life: 40, eliminated: false,
-    hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 7,
-  },
-];
-
-describe('PhaseBar', () => {
-  it('highlights the active phase tab', () => {
-    render(<PhaseBar phase="main1" activeSeat={0} players={players} />);
-
-    const main1 = screen.getByText('main1');
-    expect(main1).toHaveClass('bg-accent-blue');
-  });
-
-  it('does not highlight inactive phase tabs', () => {
-    render(<PhaseBar phase="main1" activeSeat={0} players={players} />);
-
-    const untap = screen.getByText('untap');
-    expect(untap).not.toHaveClass('bg-accent-blue');
-    expect(untap).toHaveClass('bg-[#252a42]');
-  });
-
-  it('shows active player name', () => {
-    render(<PhaseBar phase="main1" activeSeat={0} players={players} />);
-
-    expect(screen.getByText(/P0: Alice/)).toBeInTheDocument();
-  });
-});

frontend/src/__tests__/PlayerZone.test.tsx

@@ -1,32 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { describe, it, expect } from 'vitest';
-import PlayerZone from '../components/PlayerZone';
-import type { Player } from '../types/game';
-
-function makePlayer(overrides: Partial<Player> = {}): Player {
-  return {
-    seat: 0, name: 'Alice', life: 40, eliminated: false,
-    hand: [], battlefield: [], graveyard: [], exile: [], command_zone: [], hand_count: 7,
-    ...overrides,
-  };
-}
-
-describe('PlayerZone life colors', () => {
-  it('uses life-high color for life >= 30', () => {
-    render(<PlayerZone player={makePlayer({ life: 35 })} isActive={false} isThinking={false} seatColour="#4696ff" />);
-    const life = screen.getByText('35');
-    expect(life).toHaveClass('text-life-high');
-  });
-
-  it('uses life-med color for life >= 15 and < 30', () => {
-    render(<PlayerZone player={makePlayer({ life: 20 })} isActive={false} isThinking={false} seatColour="#4696ff" />);
-    const life = screen.getByText('20');
-    expect(life).toHaveClass('text-life-med');
-  });
-
-  it('uses life-low color for life < 15', () => {
-    render(<PlayerZone player={makePlayer({ life: 10 })} isActive={false} isThinking={false} seatColour="#4696ff" />);
-    const life = screen.getByText('10');
-    expect(life).toHaveClass('text-life-low');
-  });
-});

frontend/src/__tests__/gameReducer.test.ts

@@ -1,78 +0,0 @@
-import { describe, it, expect } from 'vitest';
-import { gameReducer, initialState } from '../store/gameReducer';
-import type { GameState, Card, NarrationLine } from '../types/game';
-
-const mockGameState: GameState = {
-  game_id: 'g1',
-  turn: 1,
-  current_phase: 'main1',
-  active_seat: 0,
-  players: [],
-  stack: [],
-  game_over: false,
-  winner: null,
-};
-
-const mockCard: Card = {
-  name: 'Sol Ring',
-  type: 'Artifact',
-  tapped: false,
-  is_commander: false,
-  oracle: '',
-  cmc: 1,
-};
-
-const mockLine: NarrationLine = {
-  text: 'Test narration',
-  isSystem: false,
-  timestamp: Date.now(),
-};
-
-describe('gameReducer', () => {
-  it('SET_STATE sets the game state', () => {
-    const result = gameReducer(initialState, { type: 'SET_STATE', payload: mockGameState });
-    expect(result.gameState).toEqual(mockGameState);
-  });
-
-  it('SET_HAND sets the hand cards', () => {
-    const cards = [mockCard];
-    const result = gameReducer(initialState, { type: 'SET_HAND', cards });
-    expect(result.hand).toEqual(cards);
-  });
-
-  it('ADD_NARRATION appends a line', () => {
-    const result = gameReducer(initialState, { type: 'ADD_NARRATION', line: mockLine });
-    expect(result.narration).toHaveLength(1);
-    expect(result.narration[0].text).toBe('Test narration');
-  });
-
-  it('ADD_NARRATION caps at 120 lines', () => {
-    let state = initialState;
-    for (let i = 0; i < 130; i++) {
-      state = gameReducer(state, {
-        type: 'ADD_NARRATION',
-        line: { text: `line ${i}`, isSystem: false, timestamp: Date.now() },
-      });
-    }
-    expect(state.narration).toHaveLength(120);
-    expect(state.narration[0].text).toBe('line 10');
-  });
-
-  it('SET_THINKING adds and removes seats', () => {
-    let state = gameReducer(initialState, { type: 'SET_THINKING', seat: 2, active: true });
-    expect(state.thinkingSeats.has(2)).toBe(true);
-
-    state = gameReducer(state, { type: 'SET_THINKING', seat: 2, active: false });
-    expect(state.thinkingSeats.has(2)).toBe(false);
-  });
-
-  it('GAME_OVER sets winner and reason', () => {
-    const result = gameReducer(initialState, { type: 'GAME_OVER', winner: 1, reason: 'elimination' });
-    expect(result.gameOver).toEqual({ winner: 1, reason: 'elimination' });
-  });
-
-  it('SET_STATUS sets status text', () => {
-    const result = gameReducer(initialState, { type: 'SET_STATUS', status: 'Connected' });
-    expect(result.status).toBe('Connected');
-  });
-});

frontend/src/__tests__/useGameSocket.test.ts

@@ -1,92 +0,0 @@
-import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
-import { renderHook, act } from '@testing-library/react';
-import { useGameSocket } from '../hooks/useGameSocket';
-
-// Mock WebSocket
-class MockWebSocket {
-  static readonly CONNECTING = 0;
-  static readonly OPEN = 1;
-  static readonly CLOSING = 2;
-  static readonly CLOSED = 3;
-
-  static instances: MockWebSocket[] = [];
-  url: string;
-  readyState = 1; // OPEN
-  onopen: ((ev: Event) => void) | null = null;
-  onmessage: ((ev: MessageEvent) => void) | null = null;
-  onclose: ((ev: CloseEvent) => void) | null = null;
-  onerror: ((ev: Event) => void) | null = null;
-  sent: string[] = [];
-
-  constructor(url: string) {
-    this.url = url;
-    MockWebSocket.instances.push(this);
-    // Simulate connection open
-    setTimeout(() => this.onopen?.(new Event('open')), 0);
-  }
-
-  send(data: string) {
-    this.sent.push(data);
-  }
-
-  close() {
-    this.readyState = 3;
-  }
-
-  simulateMessage(data: unknown) {
-    this.onmessage?.(new MessageEvent('message', { data: JSON.stringify(data) }));
-  }
-}
-
-describe('useGameSocket', () => {
-  beforeEach(() => {
-    MockWebSocket.instances = [];
-    vi.stubGlobal('WebSocket', MockWebSocket);
-    vi.useFakeTimers();
-  });
-
-  afterEach(() => {
-    vi.useRealTimers();
-    vi.restoreAllMocks();
-  });
-
-  it('dispatches state on WS message', () => {
-    const { result } = renderHook(() => useGameSocket('game-1'));
-
-    const ws = MockWebSocket.instances[0];
-    const mockState = {
-      game_id: 'game-1', turn: 1, current_phase: 'main1', active_seat: 0,
-      players: [], stack: [], game_over: false, winner: null,
-    };
-
-    act(() => {
-      ws.simulateMessage({ type: 'state', payload: mockState });
-    });
-
-    expect(result.current.gameState).toEqual(mockState);
-  });
-
-  it('dispatches hand cards on WS message', () => {
-    const { result } = renderHook(() => useGameSocket('game-1'));
-    const ws = MockWebSocket.instances[0];
-
-    const cards = [{ name: 'Sol Ring', type: 'Artifact', tapped: false, is_commander: false, oracle: '', cmc: 1 }];
-
-    act(() => {
-      ws.simulateMessage({ type: 'hand', cards });
-    });
-
-    expect(result.current.hand).toEqual(cards);
-  });
-
-  it('sends heartbeat ping every 15s', () => {
-    renderHook(() => useGameSocket('game-1'));
-    const ws = MockWebSocket.instances[0];
-
-    act(() => {
-      vi.advanceTimersByTime(15000);
-    });
-
-    expect(ws.sent).toContain(JSON.stringify({ type: 'ping' }));
-  });
-});

frontend/src/assets/react.svg

@@ -1 +0,0 @@
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frontend/src/assets/vite.svg

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frontend/src/components/Board.tsx

@@ -1,54 +0,0 @@
-import type { GameState } from '../types/game';
-import { SEAT_COLOURS } from '../constants';
-import PlayerZone from './PlayerZone';
-import CardChip from './CardChip';
-
-interface BoardProps {
-  gameState: GameState;
-  thinkingSeats: Set<number>;
-}
-
-export default function Board({ gameState, thinkingSeats }: BoardProps) {
-  const { players, active_seat, stack } = gameState;
-
-  const getPlayer = (seat: number) => players.find((p) => p.seat === seat);
-
-  const renderZone = (seat: number, className: string) => {
-    const player = getPlayer(seat);
-    if (!player) return <div className={className} />;
-    return (
-      <div className={className}>
-        <PlayerZone
-          player={player}
-          isActive={active_seat === seat}
-          isThinking={thinkingSeats.has(seat)}
-          seatColour={SEAT_COLOURS[seat]}
-        />
-      </div>
-    );
-  };
-
-  return (
-    <div className="grid grid-cols-[180px_1fr_180px] grid-rows-3 gap-1 flex-1">
-      {/* Row 1: P1 (top-left), stack center, P2 (top-right) */}
-      {renderZone(1, 'row-start-1 col-start-1')}
-      <div className="bg-bg-zone border border-accent-purple rounded-md min-h-[60px] row-span-3 col-start-2 p-2 overflow-y-auto">
-        <span className="text-[10px] text-[#666] block mb-1">Stack</span>
-        <div className="flex flex-wrap gap-0.5">
-          {stack.map((card, i) => (
-            <CardChip key={i} card={card} />
-          ))}
-        </div>
-      </div>
-      {renderZone(2, 'row-start-1 col-start-3')}
-
-      {/* Row 2: empty side cells (stack spans all 3 rows in center) */}
-      <div className="row-start-2 col-start-1" />
-      <div className="row-start-2 col-start-3" />
-
-      {/* Row 3: P0 (bottom-left), P3 (bottom-right) */}
-      {renderZone(0, 'row-start-3 col-start-1')}
-      {renderZone(3, 'row-start-3 col-start-3')}
-    </div>
-  );
-}

frontend/src/components/CardChip.tsx

@@ -1,20 +0,0 @@
-import type { Card } from '../types/game';
-
-interface CardChipProps {
-  card: Card;
-  onClick?: () => void;
-}
-
-export default function CardChip({ card, onClick }: CardChipProps) {
-  return (
-    <span
-      onClick={onClick}
-      className={`bg-card-bg border border-[#444] rounded text-[10px] max-w-[110px] overflow-hidden text-ellipsis whitespace-nowrap cursor-pointer px-1.5 py-0.5 hover:border-[#ffdc32] ${
-        card.tapped ? 'opacity-55 italic' : ''
-      }`}
-    >
-      {card.name}
-      {card.is_commander && <span className="text-[#ffd200]"> ★</span>}
-    </span>
-  );
-}

frontend/src/components/GameOverOverlay.tsx

@@ -1,40 +0,0 @@
-import type { Player } from '../types/game';
-import { SEAT_COLOURS } from '../constants';
-
-interface GameOverOverlayProps {
-  show: boolean;
-  winner: Player | null;
-  reason: string;
-  players: Player[];
-}
-
-export default function GameOverOverlay({ show, winner, reason, players }: GameOverOverlayProps) {
-  if (!show) return null;
-
-  return (
-    <div className="fixed inset-0 bg-black/80 z-[100] flex items-center justify-center">
-      <div className="bg-bg-zone border-2 border-[#4060c0] rounded-[10px] px-[60px] py-10 text-center">
-        {winner && (
-          <h2
-            className="text-4xl font-bold"
-            style={{ color: SEAT_COLOURS[winner.seat] }}
-          >
-            {winner.name} Wins!
-          </h2>
-        )}
-        <p className="text-base text-[#aaa] mt-2">{reason}</p>
-        <ul className="mt-6 space-y-1">
-          {players.map((p) => (
-            <li key={p.seat} className="text-sm">
-              <span style={{ color: SEAT_COLOURS[p.seat] }}>P{p.seat}</span>{' '}
-              {p.name} — {p.life} life
-              {p.eliminated && (
-                <span className="text-red-500 ml-1 font-bold">[ELIM]</span>
-              )}
-            </li>
-          ))}
-        </ul>
-      </div>
-    </div>
-  );
-}

frontend/src/components/HandCard.tsx

@@ -1,23 +0,0 @@
-import type { Card } from '../types/game';
-
-interface HandCardProps {
-  card: Card;
-  index: number;
-  isSelected: boolean;
-  onClick: () => void;
-}
-
-export default function HandCard({ card, isSelected, onClick }: HandCardProps) {
-  return (
-    <button
-      onClick={onClick}
-      className={`rounded text-[11px] px-2 py-1 cursor-pointer ${
-        isSelected
-          ? 'border border-[#ffdc32] bg-card-selected'
-          : 'bg-card-hand border border-[#5060a0]'
-      }`}
-    >
-      {card.name}
-    </button>
-  );
-}

frontend/src/components/MoveBar.tsx

@@ -1,54 +0,0 @@
-import { useState } from 'react';
-import type { Card } from '../types/game';
-import HandCard from './HandCard';
-
-interface MoveBarProps {
-  hand: Card[];
-  humanSeat: number;
-  onPass: () => void;
-  onConcede: () => void;
-  onPlayCard: (index: number) => void;
-  status: string;
-}
-
-export default function MoveBar({ hand, onPass, onConcede, onPlayCard, status }: MoveBarProps) {
-  const [selectedIndex, setSelectedIndex] = useState<number | null>(null);
-
-  const handleCardClick = (index: number) => {
-    if (selectedIndex === index) {
-      onPlayCard(index);
-      setSelectedIndex(null);
-    } else {
-      setSelectedIndex(index);
-    }
-  };
-
-  return (
-    <div className="bg-bg-bar border-t border-[#2a2e48] px-2.5 py-1.5 flex items-center gap-2">
-      <button
-        onClick={onPass}
-        className="bg-[#2a5090] border border-[#4080d0] text-white rounded px-3 py-1 text-sm cursor-pointer hover:brightness-110"
-      >
-        Pass Priority
-      </button>
-      <button
-        onClick={() => {
-          if (window.confirm('Are you sure you want to concede?')) onConcede();
-        }}
-        className="bg-[#2a3868] border border-[#4060a0] text-white rounded px-3 py-1 text-sm cursor-pointer"
-      >
-        Concede
-      </button>
-      {hand.map((card, i) => (
-        <HandCard
-          key={i}
-          card={card}
-          index={i}
-          isSelected={selectedIndex === i}
-          onClick={() => handleCardClick(i)}
-        />
-      ))}
-      <span className="text-[11px] text-[#778] ml-auto">{status}</span>
-    </div>
-  );
-}

frontend/src/components/NarrationPanel.tsx

@@ -1,68 +0,0 @@
-import { useRef, useEffect, useState } from 'react';
-import type { NarrationLine } from '../types/game';
-import { SEAT_COLOURS } from '../constants';
-
-interface NarrationPanelProps {
-  lines: NarrationLine[];
-  thinkingSeats: Set<number>;
-}
-
-export default function NarrationPanel({ lines, thinkingSeats }: NarrationPanelProps) {
-  const containerRef = useRef<HTMLDivElement>(null);
-  const [dots, setDots] = useState('.');
-
-  // Auto-scroll on new lines
-  useEffect(() => {
-    const el = containerRef.current;
-    if (el) el.scrollTop = el.scrollHeight;
-  }, [lines.length]);
-
-  // Cycling dots for thinking animation
-  useEffect(() => {
-    if (thinkingSeats.size === 0) return;
-    const interval = setInterval(() => {
-      setDots((prev) => (prev.length >= 3 ? '.' : prev + '.'));
-    }, 500);
-    return () => clearInterval(interval);
-  }, [thinkingSeats.size]);
-
-  const displayed = lines.slice(-120);
-
-  return (
-    <div
-      ref={containerRef}
-      className="w-[260px] bg-bg-panel border-l border-[#2a2e48] overflow-y-auto p-2 flex flex-col"
-    >
-      {displayed.map((line, i) => {
-        let colorClass = 'text-[#e8e8e8]';
-        let style: React.CSSProperties | undefined;
-
-        if (line.isSystem) {
-          colorClass = 'text-[#556]';
-        } else if (line.seat !== undefined) {
-          colorClass = '';
-          style = { color: SEAT_COLOURS[line.seat] };
-        }
-
-        return (
-          <div
-            key={i}
-            className={`text-[11px] leading-[1.4] break-words ${colorClass}`}
-            style={style}
-          >
-            {line.text}
-          </div>
-        );
-      })}
-      {thinkingSeats.size > 0 &&
-        Array.from(thinkingSeats).map((seat) => (
-          <div
-            key={`thinking-${seat}`}
-            className="text-[11px] leading-[1.4] break-words text-accent-think italic"
-          >
-            P{seat} thinking{dots}
-          </div>
-        ))}
-    </div>
-  );
-}

frontend/src/components/PhaseBar.tsx

@@ -1,37 +0,0 @@
-import type { Phase, Player } from '../types/game';
-import { PHASES, SEAT_COLOURS } from '../constants';
-
-interface PhaseBarProps {
-  phase: Phase;
-  activeSeat: number;
-  players: Player[];
-}
-
-export default function PhaseBar({ phase, activeSeat, players }: PhaseBarProps) {
-  const activePlayer = players.find((p) => p.seat === activeSeat);
-
-  return (
-    <div className="h-[34px] bg-[#1e2338] px-2 py-1 flex items-center gap-1">
-      {PHASES.map((p) => (
-        <button
-          key={p}
-          className={`text-[11px] rounded px-2 py-0.5 ${
-            p === phase
-              ? 'bg-accent-blue text-white'
-              : 'bg-[#252a42] text-[#888]'
-          }`}
-        >
-          {p}
-        </button>
-      ))}
-      {activePlayer && (
-        <span
-          className="text-[11px] ml-auto font-bold"
-          style={{ color: SEAT_COLOURS[activeSeat] }}
-        >
-          P{activeSeat}: {activePlayer.name}
-        </span>
-      )}
-    </div>
-  );
-}

frontend/src/components/PlayerZone.tsx

@@ -1,40 +0,0 @@
-import type { Player } from '../types/game';
-import CardChip from './CardChip';
-
-interface PlayerZoneProps {
-  player: Player;
-  isActive: boolean;
-  isThinking: boolean;
-  seatColour: string;
-}
-
-function lifeColor(life: number): string {
-  if (life >= 30) return 'text-life-high';
-  if (life >= 15) return 'text-life-med';
-  return 'text-life-low';
-}
-
-export default function PlayerZone({ player, isActive, isThinking, seatColour }: PlayerZoneProps) {
-  return (
-    <div
-      className={`bg-bg-zone border border-[#3a4060] rounded-md p-1.5 ${
-        isThinking ? 'animate-pulse' : ''
-      } ${player.eliminated ? 'opacity-40' : ''}`}
-      style={isActive ? { borderColor: seatColour } : undefined}
-    >
-      <div className="flex items-center justify-between mb-1">
-        <span className="text-[11px] text-[#666]">
-          P{player.seat}: {player.name}
-        </span>
-        <span className={`text-[28px] font-bold ${lifeColor(player.life)}`}>
-          {player.life}
-        </span>
-      </div>
-      <div className="flex flex-wrap gap-0.5">
-        {player.battlefield.map((card, i) => (
-          <CardChip key={i} card={card} />
-        ))}
-      </div>
-    </div>
-  );
-}

frontend/src/constants.ts

@@ -1,9 +0,0 @@
-import type { Phase } from './types/game';
-
-export const SEAT_COLOURS = ['#4696ff', '#ff6450', '#50d278', '#dcaa32'] as const;
-
-export const PHASES: Phase[] = [
-  'untap', 'upkeep', 'draw', 'main1',
-  'begin_combat', 'declare_attackers', 'declare_blockers', 'combat_damage',
-  'main2', 'end_step', 'cleanup',
-];

frontend/src/hooks/useGameSocket.ts

@@ -1,132 +0,0 @@
-import { useReducer, useRef, useEffect, useCallback } from 'react';
-import { gameReducer, initialState } from '../store/gameReducer';
-import type { WsIncoming, NarrationLine } from '../types/game';
-
-export function useGameSocket(gameId: string) {
-  const [state, dispatch] = useReducer(gameReducer, initialState);
-  const wsRef = useRef<WebSocket | null>(null);
-  const reconnectTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
-  const heartbeatInterval = useRef<ReturnType<typeof setInterval> | null>(null);
-  const intentionalClose = useRef(false);
-
-  const connect = useCallback(() => {
-    const url = `ws://${window.location.host}/ws/game/${gameId}`;
-    const ws = new WebSocket(url);
-    wsRef.current = ws;
-
-    ws.onopen = () => {
-      dispatch({ type: 'SET_STATUS', status: 'Connected' });
-    };
-
-    ws.onmessage = (event) => {
-      const msg: WsIncoming = JSON.parse(event.data);
-
-      switch (msg.type) {
-        case 'state':
-          dispatch({ type: 'SET_STATE', payload: msg.payload });
-          break;
-
-        case 'hand':
-          dispatch({ type: 'SET_HAND', cards: msg.cards });
-          break;
-
-        case 'event': {
-          const line: NarrationLine = {
-            text: msg.text,
-            seat: msg.seat,
-            isSystem: false,
-            timestamp: Date.now(),
-          };
-          dispatch({ type: 'ADD_NARRATION', line });
-          break;
-        }
-
-        case 'phase': {
-          const line: NarrationLine = {
-            text: `Phase: ${msg.phase} (P${msg.active_seat})`,
-            isSystem: true,
-            timestamp: Date.now(),
-          };
-          dispatch({ type: 'ADD_NARRATION', line });
-          break;
-        }
-
-        case 'thinking':
-          dispatch({ type: 'SET_THINKING', seat: msg.seat, active: msg.active });
-          break;
-
-        case 'game_over':
-          dispatch({ type: 'GAME_OVER', winner: msg.winner, reason: msg.reason });
-          break;
-
-        case 'pong':
-          break;
-
-        case 'error':
-          dispatch({ type: 'SET_STATUS', status: `Error: ${msg.message}` });
-          break;
-      }
-    };
-
-    ws.onclose = () => {
-      if (!intentionalClose.current) {
-        dispatch({ type: 'SET_STATUS', status: 'Disconnected — reconnecting…' });
-        reconnectTimeout.current = setTimeout(() => {
-          connect();
-        }, 3000);
-      }
-    };
-
-    ws.onerror = () => {
-      dispatch({ type: 'SET_STATUS', status: 'Connection error' });
-    };
-  }, [gameId]);
-
-  // Connect on mount
-  useEffect(() => {
-    intentionalClose.current = false;
-    connect();
-
-    return () => {
-      intentionalClose.current = true;
-      if (reconnectTimeout.current) clearTimeout(reconnectTimeout.current);
-      wsRef.current?.close();
-    };
-  }, [connect]);
-
-  // Heartbeat ping every 15s
-  useEffect(() => {
-    heartbeatInterval.current = setInterval(() => {
-      if (wsRef.current?.readyState === WebSocket.OPEN) {
-        wsRef.current.send(JSON.stringify({ type: 'ping' }));
-      }
-    }, 15000);
-
-    return () => {
-      if (heartbeatInterval.current) clearInterval(heartbeatInterval.current);
-    };
-  }, []);
-
-  const sendMove = useCallback((move: string, data?: Record<string, unknown>) => {
-    if (wsRef.current?.readyState === WebSocket.OPEN) {
-      wsRef.current.send(JSON.stringify({ type: 'move', move, ...data }));
-    }
-  }, []);
-
-  const sendConcede = useCallback(() => {
-    if (wsRef.current?.readyState === WebSocket.OPEN) {
-      wsRef.current.send(JSON.stringify({ type: 'concede' }));
-    }
-  }, []);
-
-  return {
-    gameState: state.gameState,
-    narration: state.narration,
-    thinking: state.thinkingSeats,
-    hand: state.hand,
-    gameOver: state.gameOver,
-    status: state.status,
-    sendMove,
-    sendConcede,
-  };
-}

frontend/src/hooks/useLobbySock.ts

@@ -1,163 +0,0 @@
-import { useReducer, useRef, useEffect, useCallback } from 'react';
-
-export interface Seat {
-  seat: number;
-  name: string;
-  ready: boolean;
-  isAi: boolean;
-}
-
-export interface RoomState {
-  roomId: string;
-  roomName: string;
-  host: string;
-  seats: (Seat | null)[];
-}
-
-export interface ChatMessage {
-  role: 'PLAYER' | 'AI' | 'SYSTEM';
-  name: string;
-  text: string;
-  timestamp: number;
-}
-
-type LobbyAction =
-  | { type: 'SET_ROOM'; payload: RoomState }
-  | { type: 'ADD_CHAT'; message: ChatMessage }
-  | { type: 'SET_CHAT_HISTORY'; messages: ChatMessage[] }
-  | { type: 'LAUNCH'; gameId: string };
-
-interface LobbyState {
-  roomState: RoomState | null;
-  chat: ChatMessage[];
-  launchedGameId: string | null;
-}
-
-const initialState: LobbyState = {
-  roomState: null,
-  chat: [],
-  launchedGameId: null,
-};
-
-function lobbyReducer(state: LobbyState, action: LobbyAction): LobbyState {
-  switch (action.type) {
-    case 'SET_ROOM':
-      return { ...state, roomState: action.payload };
-    case 'ADD_CHAT':
-      return { ...state, chat: [...state.chat, action.message].slice(-50) };
-    case 'SET_CHAT_HISTORY':
-      return { ...state, chat: action.messages.slice(-50) };
-    case 'LAUNCH':
-      return { ...state, launchedGameId: action.gameId };
-    default:
-      return state;
-  }
-}
-
-export function useLobbySock(roomId: string, playerName: string) {
-  const [state, dispatch] = useReducer(lobbyReducer, initialState);
-  const wsRef = useRef<WebSocket | null>(null);
-  const reconnectTimeout = useRef<ReturnType<typeof setTimeout> | null>(null);
-  const heartbeatInterval = useRef<ReturnType<typeof setInterval> | null>(null);
-  const intentionalClose = useRef(false);
-
-  const connect = useCallback(() => {
-    const url = `ws://${window.location.host}/ws/lobby/${roomId}?name=${encodeURIComponent(playerName)}`;
-    const ws = new WebSocket(url);
-    wsRef.current = ws;
-
-    ws.onmessage = (event) => {
-      const msg = JSON.parse(event.data);
-
-      switch (msg.type) {
-        case 'lobby_state':
-          dispatch({ type: 'SET_ROOM', payload: msg.payload });
-          break;
-        case 'chat':
-          dispatch({
-            type: 'ADD_CHAT',
-            message: {
-              role: msg.role ?? 'PLAYER',
-              name: msg.name ?? '',
-              text: msg.text,
-              timestamp: Date.now(),
-            },
-          });
-          break;
-        case 'chat_history':
-          dispatch({
-            type: 'SET_CHAT_HISTORY',
-            messages: (msg.messages ?? []).map((m: { role?: string; name?: string; text: string }) => ({
-              role: m.role ?? 'SYSTEM',
-              name: m.name ?? '',
-              text: m.text,
-              timestamp: Date.now(),
-            })),
-          });
-          break;
-        case 'launch':
-          dispatch({ type: 'LAUNCH', gameId: msg.game_id });
-          break;
-        case 'pong':
-          break;
-      }
-    };
-
-    ws.onclose = () => {
-      if (!intentionalClose.current) {
-        reconnectTimeout.current = setTimeout(() => connect(), 3000);
-      }
-    };
-  }, [roomId, playerName]);
-
-  useEffect(() => {
-    intentionalClose.current = false;
-    connect();
-
-    return () => {
-      intentionalClose.current = true;
-      if (reconnectTimeout.current) clearTimeout(reconnectTimeout.current);
-      wsRef.current?.close();
-    };
-  }, [connect]);
-
-  // Heartbeat ping every 15s
-  useEffect(() => {
-    heartbeatInterval.current = setInterval(() => {
-      if (wsRef.current?.readyState === WebSocket.OPEN) {
-        wsRef.current.send(JSON.stringify({ type: 'ping' }));
-      }
-    }, 15000);
-
-    return () => {
-      if (heartbeatInterval.current) clearInterval(heartbeatInterval.current);
-    };
-  }, []);
-
-  const sendReady = useCallback((seat: number) => {
-    if (wsRef.current?.readyState === WebSocket.OPEN) {
-      wsRef.current.send(JSON.stringify({ type: 'ready', seat }));
-    }
-  }, []);
-
-  const sendChat = useCallback((text: string) => {
-    if (wsRef.current?.readyState === WebSocket.OPEN) {
-      wsRef.current.send(JSON.stringify({ type: 'chat', text }));
-    }
-  }, []);
-
-  const sendLaunch = useCallback(() => {
-    if (wsRef.current?.readyState === WebSocket.OPEN) {
-      wsRef.current.send(JSON.stringify({ type: 'launch' }));
-    }
-  }, []);
-
-  return {
-    roomState: state.roomState,
-    chat: state.chat,
-    launchedGameId: state.launchedGameId,
-    sendReady,
-    sendChat,
-    sendLaunch,
-  };
-}

frontend/src/index.css

@@ -1,3 +0,0 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;

frontend/src/main.tsx

@@ -1,10 +0,0 @@
-import { StrictMode } from 'react'
-import { createRoot } from 'react-dom/client'
-import './index.css'
-import App from './App.tsx'
-
-createRoot(document.getElementById('root')!).render(
-  <StrictMode>
-    <App />
-  </StrictMode>,
-)

frontend/src/pages/GamePage.tsx

@@ -1,53 +0,0 @@
-import { useParams } from 'react-router-dom';
-import { useGameSocket } from '../hooks/useGameSocket';
-import PhaseBar from '../components/PhaseBar';
-import Board from '../components/Board';
-import NarrationPanel from '../components/NarrationPanel';
-import MoveBar from '../components/MoveBar';
-import GameOverOverlay from '../components/GameOverOverlay';
-
-export default function GamePage() {
-  const { gameId } = useParams<{ gameId: string }>();
-  const { gameState, narration, thinking, hand, gameOver, status, sendMove, sendConcede } =
-    useGameSocket(gameId!);
-
-  if (!gameState) {
-    return (
-      <div className="flex items-center justify-center h-screen bg-bg-base text-white">
-        Connecting…
-      </div>
-    );
-  }
-
-  const winnerPlayer = gameOver
-    ? gameState.players.find((p) => p.seat === gameOver.winner) ?? null
-    : null;
-
-  return (
-    <div className="flex flex-col h-screen overflow-hidden bg-bg-base text-white">
-      <PhaseBar
-        phase={gameState.current_phase}
-        activeSeat={gameState.active_seat}
-        players={gameState.players}
-      />
-      <div className="flex flex-1 overflow-hidden">
-        <Board gameState={gameState} thinkingSeats={thinking} />
-        <NarrationPanel lines={narration} thinkingSeats={thinking} />
-      </div>
-      <MoveBar
-        hand={hand}
-        humanSeat={0}
-        onPass={() => sendMove('pass')}
-        onConcede={sendConcede}
-        onPlayCard={(index) => sendMove('play_card', { index })}
-        status={status}
-      />
-      <GameOverOverlay
-        show={gameOver !== null}
-        winner={winnerPlayer}
-        reason={gameOver?.reason ?? ''}
-        players={gameState.players}
-      />
-    </div>
-  );
-}

frontend/src/pages/LobbyPage.tsx

@@ -1,141 +0,0 @@
-import { useEffect, useState } from 'react';
-import { useNavigate } from 'react-router-dom';
-
-interface RoomSummary {
-  roomId: string;
-  name: string;
-  host: string;
-  playerCount: number;
-}
-
-export default function LobbyPage() {
-  const navigate = useNavigate();
-  const [rooms, setRooms] = useState<RoomSummary[]>([]);
-  const [loading, setLoading] = useState(true);
-
-  // Create room form state
-  const [roomName, setRoomName] = useState('');
-  const [hostName, setHostName] = useState('');
-  const [aiSlots, setAiSlots] = useState(0);
-  const [password, setPassword] = useState('');
-  const [creating, setCreating] = useState(false);
-
-  useEffect(() => {
-    fetch('/api/v1/lobby/rooms')
-      .then((res) => res.json())
-      .then((data) => setRooms(data))
-      .catch(() => setRooms([]))
-      .finally(() => setLoading(false));
-  }, []);
-
-  const handleCreate = async (e: React.FormEvent) => {
-    e.preventDefault();
-    setCreating(true);
-    try {
-      const res = await fetch('/api/v1/lobby/rooms', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({
-          name: roomName,
-          host: hostName,
-          ai_slots: aiSlots,
-          password: password || undefined,
-        }),
-      });
-      const data = await res.json();
-      navigate(`/room/${data.roomId}?name=${encodeURIComponent(hostName)}`);
-    } catch {
-      setCreating(false);
-    }
-  };
-
-  return (
-    <div className="min-h-screen bg-bg-base text-white p-6">
-      <h1 className="text-3xl font-bold mb-6">Commander AI Lab — Lobby</h1>
-
-      <div className="grid grid-cols-1 md:grid-cols-2 gap-6 max-w-4xl">
-        {/* Room List */}
-        <div className="bg-bg-zone rounded-lg border border-border-zone p-4">
-          <h2 className="text-lg font-semibold mb-3">Open Rooms</h2>
-          {loading ? (
-            <p className="text-text-muted text-sm">Loading...</p>
-          ) : rooms.length === 0 ? (
-            <p className="text-text-muted text-sm">No rooms available. Create one!</p>
-          ) : (
-            <ul className="space-y-2">
-              {rooms.map((room) => (
-                <li key={room.roomId}>
-                  <button
-                    onClick={() => navigate(`/room/${room.roomId}`)}
-                    className="w-full text-left bg-bg-panel border border-border-zone rounded px-3 py-2 hover:border-accent-blue transition-colors"
-                  >
-                    <span className="font-medium">{room.name}</span>
-                    <span className="text-text-muted text-sm ml-2">
-                      Host: {room.host} · {room.playerCount}/4 players
-                    </span>
-                  </button>
-                </li>
-              ))}
-            </ul>
-          )}
-        </div>
-
-        {/* Create Room Form */}
-        <div className="bg-bg-zone rounded-lg border border-border-zone p-4">
-          <h2 className="text-lg font-semibold mb-3">Create Room</h2>
-          <form onSubmit={handleCreate} className="space-y-3">
-            <div>
-              <label className="block text-sm text-text-muted mb-1">Room Name</label>
-              <input
-                type="text"
-                value={roomName}
-                onChange={(e) => setRoomName(e.target.value)}
-                required
-                className="w-full bg-bg-panel border border-border-zone rounded px-3 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-              />
-            </div>
-            <div>
-              <label className="block text-sm text-text-muted mb-1">Your Name</label>
-              <input
-                type="text"
-                value={hostName}
-                onChange={(e) => setHostName(e.target.value)}
-                required
-                className="w-full bg-bg-panel border border-border-zone rounded px-3 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-              />
-            </div>
-            <div>
-              <label className="block text-sm text-text-muted mb-1">AI Players</label>
-              <select
-                value={aiSlots}
-                onChange={(e) => setAiSlots(Number(e.target.value))}
-                className="w-full bg-bg-panel border border-border-zone rounded px-3 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-              >
-                <option value={0}>0 AI players</option>
-                <option value={1}>1 AI player</option>
-                <option value={2}>2 AI players</option>
-                <option value={3}>3 AI players</option>
-              </select>
-            </div>
-            <div>
-              <label className="block text-sm text-text-muted mb-1">Password (optional)</label>
-              <input
-                type="password"
-                value={password}
-                onChange={(e) => setPassword(e.target.value)}
-                className="w-full bg-bg-panel border border-border-zone rounded px-3 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-              />
-            </div>
-            <button
-              type="submit"
-              disabled={creating}
-              className="w-full bg-btn-primary border border-border-btn-primary text-white rounded px-4 py-2 text-sm font-medium hover:brightness-110 disabled:opacity-50"
-            >
-              {creating ? 'Creating...' : 'Create Room'}
-            </button>
-          </form>
-        </div>
-      </div>
-    </div>
-  );
-}

frontend/src/pages/RoomPage.tsx

@@ -1,220 +0,0 @@
-import { useState, useEffect, useRef } from 'react';
-import { useParams, useSearchParams, useNavigate } from 'react-router-dom';
-import { useLobbySock } from '../hooks/useLobbySock';
-import type { ChatMessage } from '../hooks/useLobbySock';
-
-const ROLE_COLORS: Record<string, string> = {
-  PLAYER: 'text-accent-blue',
-  AI: 'text-accent-purple',
-  SYSTEM: 'text-text-muted',
-};
-
-function ChatBadge({ role }: { role: string }) {
-  return (
-    <span className={`text-[10px] font-bold mr-1 ${ROLE_COLORS[role] ?? 'text-text-muted'}`}>
-      [{role}]
-    </span>
-  );
-}
-
-export default function RoomPage() {
-  const { roomId } = useParams<{ roomId: string }>();
-  const [searchParams] = useSearchParams();
-  const navigate = useNavigate();
-
-  const isSpectator = searchParams.get('spectate') === '1';
-  const nameFromUrl = searchParams.get('name') ?? '';
-  const [playerName, setPlayerName] = useState(nameFromUrl);
-  const [nameConfirmed, setNameConfirmed] = useState(!!nameFromUrl);
-  const [chatInput, setChatInput] = useState('');
-  const chatEndRef = useRef<HTMLDivElement>(null);
-
-  const { roomState, chat, launchedGameId, sendReady, sendChat, sendLaunch } =
-    useLobbySock(roomId!, nameConfirmed ? playerName : '');
-
-  // Redirect when game launches
-  useEffect(() => {
-    if (launchedGameId) {
-      navigate(`/game/${launchedGameId}`);
-    }
-  }, [launchedGameId, navigate]);
-
-  // Auto-scroll chat
-  useEffect(() => {
-    chatEndRef.current?.scrollIntoView({ behavior: 'smooth' });
-  }, [chat.length]);
-
-  // Determine own seat
-  const mySeat = roomState?.seats.findIndex(
-    (s) => s && !s.isAi && s.name === playerName,
-  ) ?? -1;
-  const isHost = mySeat === 0;
-
-  if (!nameConfirmed) {
-    return (
-      <div className="flex items-center justify-center h-screen bg-bg-base text-white">
-        <div className="bg-bg-zone border border-border-zone rounded-lg p-6 w-80">
-          <h2 className="text-lg font-semibold mb-3">Enter your name</h2>
-          <input
-            type="text"
-            value={playerName}
-            onChange={(e) => setPlayerName(e.target.value)}
-            onKeyDown={(e) => {
-              if (e.key === 'Enter' && playerName.trim()) setNameConfirmed(true);
-            }}
-            className="w-full bg-bg-panel border border-border-zone rounded px-3 py-1.5 text-sm text-white mb-3 focus:outline-none focus:border-accent-blue"
-            autoFocus
-          />
-          <button
-            onClick={() => playerName.trim() && setNameConfirmed(true)}
-            className="w-full bg-btn-primary border border-border-btn-primary text-white rounded px-4 py-2 text-sm font-medium hover:brightness-110"
-          >
-            Join Room
-          </button>
-        </div>
-      </div>
-    );
-  }
-
-  if (!roomState) {
-    return (
-      <div className="flex items-center justify-center h-screen bg-bg-base text-white">
-        Connecting to room...
-      </div>
-    );
-  }
-
-  const handleSendChat = () => {
-    if (chatInput.trim()) {
-      sendChat(chatInput.trim());
-      setChatInput('');
-    }
-  };
-
-  return (
-    <div className="flex flex-col h-screen bg-bg-base text-white">
-      {/* Header */}
-      <div className="bg-bg-bar border-b border-border-sep px-4 py-2 flex items-center justify-between">
-        <div>
-          <h1 className="text-lg font-bold">{roomState.roomName}</h1>
-          <span className="text-text-muted text-sm">Host: {roomState.host}</span>
-        </div>
-        {isSpectator && (
-          <span className="text-text-muted text-xs bg-bg-panel px-2 py-1 rounded">
-            SPECTATING
-          </span>
-        )}
-      </div>
-
-      <div className="flex flex-1 overflow-hidden">
-        {/* Seat Grid */}
-        <div className="flex-1 p-4">
-          <div className="grid grid-cols-2 gap-3 max-w-lg">
-            {[0, 1, 2, 3].map((seatIdx) => {
-              const seat = roomState.seats[seatIdx];
-              return (
-                <div
-                  key={seatIdx}
-                  className="bg-bg-zone border border-border-zone rounded-lg p-4 min-h-[100px] flex flex-col items-center justify-center"
-                >
-                  {seat ? (
-                    <>
-                      <span className="text-sm font-medium">
-                        {seat.isAi ? '🤖 AI' : seat.name}
-                      </span>
-                      <span className="text-xs text-text-muted mt-1">
-                        Seat {seatIdx}
-                      </span>
-                      {!seat.isAi && (
-                        <span
-                          className={`text-xs mt-1 font-bold ${
-                            seat.ready ? 'text-life-high' : 'text-life-med'
-                          }`}
-                        >
-                          {seat.ready ? 'READY' : 'Not Ready'}
-                        </span>
-                      )}
-                    </>
-                  ) : (
-                    <>
-                      <span className="text-text-muted text-sm">Waiting...</span>
-                      <span className="text-xs text-text-muted mt-1">
-                        Seat {seatIdx}
-                      </span>
-                    </>
-                  )}
-                </div>
-              );
-            })}
-          </div>
-
-          {/* Action buttons */}
-          {!isSpectator && (
-            <div className="mt-4 flex gap-3">
-              {mySeat >= 0 && (
-                <button
-                  onClick={() => sendReady(mySeat)}
-                  className="bg-btn-primary border border-border-btn-primary text-white rounded px-4 py-2 text-sm font-medium hover:brightness-110"
-                >
-                  Toggle Ready
-                </button>
-              )}
-              {isHost && (
-                <button
-                  onClick={async () => {
-                    try {
-                      const res = await fetch(`/api/v1/lobby/rooms/${roomId}/launch`, {
-                        method: 'POST',
-                      });
-                      const data = await res.json();
-                      if (data.gameId) {
-                        navigate(`/game/${data.gameId}`);
-                      }
-                    } catch {
-                      // launch via WS fallback
-                      sendLaunch();
-                    }
-                  }}
-                  className="bg-life-high border border-life-high text-white rounded px-4 py-2 text-sm font-bold hover:brightness-110"
-                >
-                  Launch Game
-                </button>
-              )}
-            </div>
-          )}
-        </div>
-
-        {/* Chat Panel */}
-        <div className="w-[280px] bg-bg-panel border-l border-border-sep flex flex-col">
-          <div className="px-3 py-2 border-b border-border-sep text-sm font-semibold">
-            Chat
-          </div>
-          <div className="flex-1 overflow-y-auto p-2 space-y-1">
-            {chat.map((msg: ChatMessage, i: number) => (
-              <div key={i} className="text-[11px] leading-[1.4] break-words">
-                <ChatBadge role={msg.role} />
-                {msg.name && <span className="font-medium mr-1">{msg.name}:</span>}
-                <span className="text-text-body">{msg.text}</span>
-              </div>
-            ))}
-            <div ref={chatEndRef} />
-          </div>
-          {!isSpectator && (
-            <div className="border-t border-border-sep p-2">
-              <input
-                type="text"
-                value={chatInput}
-                onChange={(e) => setChatInput(e.target.value)}
-                onKeyDown={(e) => {
-                  if (e.key === 'Enter') handleSendChat();
-                }}
-                placeholder="Type a message..."
-                className="w-full bg-bg-base border border-border-zone rounded px-2 py-1 text-xs text-white focus:outline-none focus:border-accent-blue"
-              />
-            </div>
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}

frontend/src/pages/SimulatorPage.tsx

@@ -1,391 +0,0 @@
-import { useEffect, useRef, useState } from 'react';
-import { SEAT_COLOURS } from '../constants';
-import type { SimDeck, SimResult } from '../types/simulator';
-
-const SEAT_LABELS = ['Seat 1 (You)', 'Seat 2', 'Seat 3', 'Seat 4'];
-
-type SimStatus = 'idle' | 'running' | 'complete' | 'error';
-
-export default function SimulatorPage() {
-  // Deck list from API
-  const [decks, setDecks] = useState<SimDeck[]>([]);
-  const [loadingDecks, setLoadingDecks] = useState(true);
-
-  // Slot selections (4 slots, null = empty)
-  const [slots, setSlots] = useState<(number | null)[]>([null, null, null, null]);
-
-  // Config
-  const [numGames, setNumGames] = useState(10);
-  const [engineType, setEngineType] = useState('heuristic');
-  const [recordLogs, setRecordLogs] = useState(true);
-
-  // Sim state
-  const [simId, setSimId] = useState<string | null>(null);
-  const [status, setStatus] = useState<SimStatus>('idle');
-  const [completed, setCompleted] = useState(0);
-  const [total, setTotal] = useState(0);
-  const [result, setResult] = useState<SimResult | null>(null);
-  const [games, setGames] = useState<unknown[]>([]);
-  const [error, setError] = useState<string | null>(null);
-  const [showLogs, setShowLogs] = useState(false);
-
-  const pollRef = useRef<ReturnType<typeof setInterval> | null>(null);
-
-  // Fetch decks on mount
-  useEffect(() => {
-    fetch('/api/decks')
-      .then((res) => res.json())
-      .then((data) => {
-        const list = (data.decks || []).map((d: Record<string, unknown>) => ({
-          id: d.id as number,
-          name: d.name as string,
-          commander_name: (d.commander_name || '') as string,
-          color_identity: (d.color_identity || []) as string[],
-        }));
-        setDecks(list);
-      })
-      .catch(() => setDecks([]))
-      .finally(() => setLoadingDecks(false));
-  }, []);
-
-  // Polling
-  useEffect(() => {
-    if (status !== 'running' || !simId) return;
-    pollRef.current = setInterval(async () => {
-      try {
-        const res = await fetch(`/api/sim/status?simId=${simId}`);
-        const data = await res.json();
-        setCompleted(data.completed ?? 0);
-        setTotal(data.total ?? 0);
-        if (data.status === 'complete') {
-          setStatus('complete');
-          // Fetch results
-          const rres = await fetch(`/api/sim/result?simId=${simId}`);
-          const rdata = await rres.json();
-          setResult(rdata.summary ?? null);
-          setGames(rdata.games ?? []);
-        } else if (data.status === 'error') {
-          setStatus('error');
-          setError(data.error || 'Simulation failed');
-        }
-      } catch {
-        // keep polling
-      }
-    }, 1000);
-    return () => {
-      if (pollRef.current) clearInterval(pollRef.current);
-    };
-  }, [status, simId]);
-
-  const selectedCount = slots.filter((s) => s !== null).length;
-  const canRun = selectedCount >= 2 && status !== 'running';
-
-  const handleRun = async () => {
-    const deckIds = slots.filter((s): s is number => s !== null);
-    setStatus('running');
-    setCompleted(0);
-    setTotal(numGames);
-    setResult(null);
-    setGames([]);
-    setError(null);
-
-    try {
-      const res = await fetch('/api/sim/run-n-player', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({
-          deckIds,
-          numGames,
-          recordLogs,
-          engineType,
-        }),
-      });
-      const data = await res.json();
-      if (!res.ok) {
-        setStatus('error');
-        setError(data.error || 'Failed to start simulation');
-        return;
-      }
-      setSimId(data.simId);
-      setTotal(data.total);
-    } catch {
-      setStatus('error');
-      setError('Network error');
-    }
-  };
-
-  const setSlot = (idx: number, value: number | null) => {
-    setSlots((prev) => {
-      const next = [...prev];
-      next[idx] = value;
-      return next;
-    });
-  };
-
-  const getDeckById = (id: number) => decks.find((d) => d.id === id);
-
-  return (
-    <div className="min-h-screen bg-bg-base text-white p-6">
-      <div className="max-w-5xl mx-auto">
-        <h1 className="text-3xl font-bold mb-2">Batch Simulator</h1>
-        <p className="text-text-muted text-sm mb-6">
-          Run N-player Monte Carlo simulations with your decks.
-        </p>
-
-        {/* Deck Selection */}
-        <div className="mb-6">
-          <h2 className="text-lg font-semibold mb-3">Deck Slots</h2>
-          <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
-            {SEAT_LABELS.map((label, idx) => {
-              const selected = slots[idx];
-              const deck = selected !== null ? getDeckById(selected) : null;
-              return (
-                <div
-                  key={idx}
-                  className="bg-bg-zone rounded-md p-4"
-                  style={{
-                    border: `2px solid ${selected !== null ? SEAT_COLOURS[idx] : '#3a4060'}`,
-                    boxShadow: selected !== null ? `0 0 8px ${SEAT_COLOURS[idx]}40` : 'none',
-                  }}
-                >
-                  <div
-                    className="text-sm font-medium mb-2"
-                    style={{ color: SEAT_COLOURS[idx] }}
-                  >
-                    {label}
-                  </div>
-                  <select
-                    value={selected ?? ''}
-                    onChange={(e) => setSlot(idx, e.target.value ? Number(e.target.value) : null)}
-                    className="w-full bg-bg-panel border border-border-zone rounded px-2 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-                  >
-                    <option value="">— Empty —</option>
-                    {decks.map((d) => (
-                      <option key={d.id} value={d.id}>
-                        {d.name}
-                      </option>
-                    ))}
-                  </select>
-                  {deck && (
-                    <div className="mt-2 text-xs text-text-muted">
-                      {deck.commander_name && (
-                        <div className="truncate">{deck.commander_name}</div>
-                      )}
-                      {deck.color_identity.length > 0 && (
-                        <div>{deck.color_identity.join(' ')}</div>
-                      )}
-                    </div>
-                  )}
-                </div>
-              );
-            })}
-          </div>
-          {loadingDecks && (
-            <p className="text-text-muted text-sm mt-2">Loading decks...</p>
-          )}
-        </div>
-
-        {/* Config Row */}
-        <div className="flex flex-wrap items-end gap-4 mb-6 bg-bg-zone rounded-md border border-border-zone p-4">
-          <div>
-            <label className="block text-sm text-text-muted mb-1">Games</label>
-            <input
-              type="number"
-              min={1}
-              max={1000}
-              value={numGames}
-              onChange={(e) => setNumGames(Math.max(1, Math.min(1000, Number(e.target.value))))}
-              className="w-24 bg-bg-panel border border-border-zone rounded px-2 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-            />
-          </div>
-          <div>
-            <label className="block text-sm text-text-muted mb-1">Engine</label>
-            <select
-              value={engineType}
-              onChange={(e) => setEngineType(e.target.value)}
-              className="bg-bg-panel border border-border-zone rounded px-2 py-1.5 text-sm text-white focus:outline-none focus:border-accent-blue"
-            >
-              <option value="heuristic">Heuristic AI</option>
-              <option value="deepseek">DeepSeek AI</option>
-            </select>
-          </div>
-          <div className="flex items-center gap-2">
-            <input
-              type="checkbox"
-              id="recordLogs"
-              checked={recordLogs}
-              onChange={(e) => setRecordLogs(e.target.checked)}
-              className="rounded"
-            />
-            <label htmlFor="recordLogs" className="text-sm text-text-muted">
-              Record Logs
-            </label>
-          </div>
-          <button
-            onClick={handleRun}
-            disabled={!canRun}
-            className="bg-accent-blue text-white rounded px-4 py-2 text-sm font-medium hover:brightness-110 disabled:opacity-50 disabled:cursor-not-allowed"
-          >
-            {status === 'running' ? (
-              <span className="flex items-center gap-2">
-                <span className="inline-block w-4 h-4 border-2 border-white border-t-transparent rounded-full animate-spin" />
-                Running...
-              </span>
-            ) : (
-              'Run Simulation'
-            )}
-          </button>
-        </div>
-
-        {/* Progress */}
-        {status === 'running' && (
-          <div className="mb-6">
-            <div className="flex justify-between text-sm text-text-muted mb-1">
-              <span>Progress</span>
-              <span>
-                {completed} / {total} games
-              </span>
-            </div>
-            <div className="w-full bg-bg-panel rounded-full h-3 overflow-hidden">
-              <div
-                className="h-full bg-accent-blue rounded-full transition-all duration-300"
-                style={{ width: `${total > 0 ? (completed / total) * 100 : 0}%` }}
-              />
-            </div>
-          </div>
-        )}
-
-        {/* Error */}
-        {status === 'error' && error && (
-          <div className="mb-6 bg-red-900/30 border border-red-700 rounded-md p-3 text-sm text-red-300">
-            {error}
-          </div>
-        )}
-
-        {/* Results */}
-        {status === 'complete' && result && (
-          <div className="space-y-6">
-            <div className="flex items-center gap-4 text-sm text-text-muted">
-              <span>{result.totalGames} games</span>
-              <span>{result.playerCount} players</span>
-              <span>{result.elapsedSeconds}s elapsed</span>
-            </div>
-
-            {/* Win Rate Bar Chart */}
-            <div className="bg-bg-zone rounded-md border border-border-zone p-4">
-              <h3 className="text-sm font-semibold mb-3">Win Rates</h3>
-              <div className="space-y-2">
-                {result.players.map((p) => (
-                  <div key={p.seat} className="flex items-center gap-3">
-                    <div className="w-28 text-sm truncate" style={{ color: SEAT_COLOURS[p.seat] }}>
-                      {p.deckName}
-                    </div>
-                    <div className="flex-1 bg-bg-panel rounded-full h-5 overflow-hidden">
-                      <div
-                        className="h-full rounded-full transition-all duration-500"
-                        style={{
-                          width: `${p.winRate}%`,
-                          backgroundColor: SEAT_COLOURS[p.seat],
-                          minWidth: p.winRate > 0 ? '2px' : '0',
-                        }}
-                      />
-                    </div>
-                    <div className="w-16 text-right text-sm font-mono">
-                      {p.winRate}%
-                    </div>
-                  </div>
-                ))}
-              </div>
-            </div>
-
-            {/* Stats Table */}
-            <div className="bg-bg-zone rounded-md border border-border-zone overflow-x-auto">
-              <table className="w-full text-sm">
-                <thead>
-                  <tr className="border-b border-border-zone text-text-muted">
-                    <th className="text-left px-3 py-2">Seat</th>
-                    <th className="text-left px-3 py-2">Deck</th>
-                    <th className="text-right px-3 py-2">Wins</th>
-                    <th className="text-right px-3 py-2">Win%</th>
-                    <th className="text-right px-3 py-2">Avg Turns</th>
-                    <th className="text-right px-3 py-2">Avg Dmg</th>
-                    <th className="text-right px-3 py-2">Avg Spells</th>
-                    <th className="text-right px-3 py-2">Avg Creatures</th>
-                    <th className="text-right px-3 py-2">Avg Removal</th>
-                  </tr>
-                </thead>
-                <tbody>
-                  {result.players.map((p) => {
-                    const isWinner = result.players.every((o) => o.wins <= p.wins);
-                    return (
-                      <tr
-                        key={p.seat}
-                        className={`border-b border-border-zone ${isWinner ? 'font-semibold' : ''}`}
-                        style={{
-                          backgroundColor: `${SEAT_COLOURS[p.seat]}${isWinner ? '20' : '0a'}`,
-                        }}
-                      >
-                        <td className="px-3 py-2" style={{ color: SEAT_COLOURS[p.seat] }}>
-                          P{p.seat + 1}
-                        </td>
-                        <td className="px-3 py-2">{p.deckName}</td>
-                        <td className="text-right px-3 py-2">{p.wins}</td>
-                        <td className="text-right px-3 py-2">{p.winRate}%</td>
-                        <td className="text-right px-3 py-2">{p.avgTurns}</td>
-                        <td className="text-right px-3 py-2">{p.avgDamageDealt}</td>
-                        <td className="text-right px-3 py-2">{p.avgSpellsCast}</td>
-                        <td className="text-right px-3 py-2">{p.avgCreaturesPlayed}</td>
-                        <td className="text-right px-3 py-2">{p.avgRemovalUsed}</td>
-                      </tr>
-                    );
-                  })}
-                </tbody>
-              </table>
-            </div>
-
-            {/* Per-Game Logs (collapsible) */}
-            {games.length > 0 && (
-              <div className="bg-bg-zone rounded-md border border-border-zone">
-                <button
-                  onClick={() => setShowLogs(!showLogs)}
-                  className="w-full text-left px-4 py-3 text-sm font-medium flex justify-between items-center hover:bg-bg-panel transition-colors"
-                >
-                  <span>Per-Game Results ({games.length} games)</span>
-                  <span className="text-text-muted">{showLogs ? '▲' : '▼'}</span>
-                </button>
-                {showLogs && (
-                  <div className="px-4 pb-3 max-h-96 overflow-y-auto">
-                    <div className="space-y-1">
-                      {games.map((g: unknown, i: number) => {
-                        const game = g as Record<string, unknown>;
-                        return (
-                          <div
-                            key={i}
-                            className="flex items-center gap-3 text-xs text-text-muted py-1 border-b border-border-zone"
-                          >
-                            <span className="w-12 font-mono">#{game.gameNumber as number}</span>
-                            <span>
-                              Winner:{' '}
-                              <span
-                                style={{
-                                  color: SEAT_COLOURS[(game.winner ?? game.winningSeat ?? 0) as number],
-                                }}
-                              >
-                                P{((game.winner ?? game.winningSeat ?? 0) as number) + 1}
-                              </span>
-                            </span>
-                            <span>{game.turns as number} turns</span>
-                          </div>
-                        );
-                      })}
-                    </div>
-                  </div>
-                )}
-              </div>
-            )}
-          </div>
-        )}
-      </div>
-    </div>
-  );
-}

frontend/src/store/gameReducer.ts

@@ -1,61 +0,0 @@
-import type { GameState, Card, NarrationLine } from '../types/game';
-
-export type GameAction =
-  | { type: 'SET_STATE'; payload: GameState }
-  | { type: 'SET_HAND'; cards: Card[] }
-  | { type: 'ADD_NARRATION'; line: NarrationLine }
-  | { type: 'SET_THINKING'; seat: number; active: boolean }
-  | { type: 'GAME_OVER'; winner: number; reason: string }
-  | { type: 'SET_STATUS'; status: string };
-
-export interface ReducerState {
-  gameState: GameState | null;
-  hand: Card[];
-  narration: NarrationLine[];
-  thinkingSeats: Set<number>;
-  gameOver: { winner: number; reason: string } | null;
-  status: string;
-}
-
-export const initialState: ReducerState = {
-  gameState: null,
-  hand: [],
-  narration: [],
-  thinkingSeats: new Set(),
-  gameOver: null,
-  status: '',
-};
-
-export function gameReducer(state: ReducerState, action: GameAction): ReducerState {
-  switch (action.type) {
-    case 'SET_STATE':
-      return { ...state, gameState: action.payload };
-
-    case 'SET_HAND':
-      return { ...state, hand: action.cards };
-
-    case 'ADD_NARRATION': {
-      const narration = [...state.narration, action.line];
-      return { ...state, narration: narration.slice(-120) };
-    }
-
-    case 'SET_THINKING': {
-      const thinkingSeats = new Set(state.thinkingSeats);
-      if (action.active) {
-        thinkingSeats.add(action.seat);
-      } else {
-        thinkingSeats.delete(action.seat);
-      }
-      return { ...state, thinkingSeats };
-    }
-
-    case 'GAME_OVER':
-      return { ...state, gameOver: { winner: action.winner, reason: action.reason } };
-
-    case 'SET_STATUS':
-      return { ...state, status: action.status };
-
-    default:
-      return state;
-  }
-}

frontend/src/test/setup.ts

@@ -1 +0,0 @@
-import '@testing-library/jest-dom';

frontend/src/types/game.ts

@@ -1,55 +0,0 @@
-export type Phase =
-  | 'untap' | 'upkeep' | 'draw' | 'main1'
-  | 'begin_combat' | 'declare_attackers' | 'declare_blockers' | 'combat_damage'
-  | 'main2' | 'end_step' | 'cleanup';
-
-export interface Card {
-  name: string;
-  type: string;
-  tapped: boolean;
-  is_commander: boolean;
-  oracle: string;
-  cmc: number;
-}
-
-export interface Player {
-  seat: number;
-  name: string;
-  life: number;
-  eliminated: boolean;
-  hand: Card[];
-  battlefield: Card[];
-  graveyard: Card[];
-  exile: Card[];
-  command_zone: Card[];
-  hand_count: number;
-}
-
-export interface GameState {
-  game_id: string;
-  turn: number;
-  current_phase: Phase;
-  active_seat: number;
-  players: Player[];
-  stack: Card[];
-  game_over: boolean;
-  winner: Player | null;
-}
-
-export type WsIncoming =
-  | { type: 'state'; payload: GameState }
-  | { type: 'event'; text: string; seat?: number }
-  | { type: 'phase'; phase: Phase; active_seat: number }
-  | { type: 'thinking'; seat: number; active: boolean }
-  | { type: 'elimination'; seat: number }
-  | { type: 'game_over'; winner: number; reason: string }
-  | { type: 'hand'; cards: Card[] }
-  | { type: 'pong' }
-  | { type: 'error'; message: string };
-
-export interface NarrationLine {
-  text: string;
-  seat?: number;
-  isSystem: boolean;
-  timestamp: number;
-}

frontend/src/types/simulator.ts

@@ -1,28 +0,0 @@
-export interface SimDeck {
-  id: number;
-  name: string;
-  commander_name: string;
-  color_identity: string[];
-}
-
-export interface SimPlayerResult {
-  seat: number;
-  deckName: string;
-  wins: number;
-  winRate: number;
-  avgTurns: number;
-  avgDamageDealt: number;
-  avgSpellsCast: number;
-  avgCreaturesPlayed: number;
-  avgRemovalUsed: number;
-  avgRampPlayed: number;
-  avgCardsDrawn: number;
-  avgMaxBoardSize: number;
-}
-
-export interface SimResult {
-  playerCount: number;
-  totalGames: number;
-  players: SimPlayerResult[];
-  elapsedSeconds: number;
-}

frontend/tailwind.config.js

@@ -1,82 +0,0 @@
-/** @type {import('tailwindcss').Config} */
-export default {
-  content: [
-    "./index.html",
-    "./src/**/*.{js,ts,jsx,tsx}",
-  ],
-  theme: {
-    extend: {
-      colors: {
-        bg: {
-          base: '#12141e',
-          zone: '#1c2034',
-          panel: '#161820',
-          bar: '#1a1e30',
-          phase: '#1e2338',
-          hand: '#1a2030',
-        },
-        accent: {
-          blue: '#3c82dc',
-          think: '#64b4ff',
-          purple: '#7060c0',
-        },
-        life: {
-          high: '#50c87a',
-          med: '#dcb432',
-          low: '#dc3c3c',
-        },
-        seat: {
-          0: '#4696ff',
-          1: '#ff6450',
-          2: '#50d278',
-          3: '#dcaa32',
-        },
-        card: {
-          bg: '#2a3050',
-          hand: '#2a3868',
-          selected: '#3a4878',
-        },
-        border: {
-          zone: '#3a4060',
-          sep: '#2a2e48',
-          btn: '#4060a0',
-          overlay: '#4060c0',
-          'btn-hover': '#6080d0',
-          'btn-primary': '#4080d0',
-          'hand-card': '#5060a0',
-          chip: '#444444',
-        },
-        phase: {
-          tab: '#252a42',
-          text: '#888888',
-        },
-        btn: {
-          primary: '#2a5090',
-        },
-        text: {
-          body: '#e8e8e8',
-          muted: '#888888',
-          system: '#555566',
-          'zone-label': '#666666',
-          status: '#777788',
-          sub: '#aaaaaa',
-          btn: '#cccccc',
-        },
-        highlight: {
-          gold: '#ffdc32',
-          commander: '#ffd200',
-        },
-      },
-      keyframes: {
-        pulse: {
-          '0%, 100%': { opacity: '1' },
-          '50%': { opacity: '0.7' },
-        },
-      },
-      animation: {
-        pulse: 'pulse 1s ease-in-out infinite',
-      },
-    },
-  },
-  plugins: [],
-}

frontend/tsconfig.app.json

@@ -1,28 +0,0 @@
-{
-  "compilerOptions": {
-    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
-    "target": "ES2023",
-    "useDefineForClassFields": true,
-    "lib": ["ES2023", "DOM", "DOM.Iterable"],
-    "module": "ESNext",
-    "types": ["vite/client"],
-    "skipLibCheck": true,
-
-    /* Bundler mode */
-    "moduleResolution": "bundler",
-    "allowImportingTsExtensions": true,
-    "verbatimModuleSyntax": true,
-    "moduleDetection": "force",
-    "noEmit": true,
-    "jsx": "react-jsx",
-
-    /* Linting */
-    "strict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
-    "erasableSyntaxOnly": true,
-    "noFallthroughCasesInSwitch": true,
-    "noUncheckedSideEffectImports": true
-  },
-  "include": ["src"]
-}

frontend/tsconfig.json

@@ -1,7 +0,0 @@
-{
-  "files": [],
-  "references": [
-    { "path": "./tsconfig.app.json" },
-    { "path": "./tsconfig.node.json" }
-  ]
-}

frontend/tsconfig.node.json

@@ -1,26 +0,0 @@
-{
-  "compilerOptions": {
-    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
-    "target": "ES2023",
-    "lib": ["ES2023"],
-    "module": "ESNext",
-    "types": ["node"],
-    "skipLibCheck": true,
-
-    /* Bundler mode */
-    "moduleResolution": "bundler",
-    "allowImportingTsExtensions": true,
-    "verbatimModuleSyntax": true,
-    "moduleDetection": "force",
-    "noEmit": true,
-
-    /* Linting */
-    "strict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
-    "erasableSyntaxOnly": true,
-    "noFallthroughCasesInSwitch": true,
-    "noUncheckedSideEffectImports": true
-  },
-  "include": ["vite.config.ts"]
-}

frontend/vite.config.ts

@@ -1,21 +0,0 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
-
-// https://vite.dev/config/
-export default defineConfig({
-  plugins: [react()],
-  server: {
-    // Dev-only proxy — in production FastAPI serves the built assets
-    // and handles /api and /ws routes directly.
-    proxy: {
-      '/api': {
-        target: 'http://localhost:8000',
-        changeOrigin: true,
-      },
-      '/ws': {
-        target: 'ws://localhost:8000',
-        ws: true,
-      },
-    },
-  },
-})

frontend/vitest.config.ts

@@ -1,12 +0,0 @@
-/// <reference types="vitest" />
-import { defineConfig } from 'vitest/config'
-import react from '@vitejs/plugin-react'
-
-export default defineConfig({
-  plugins: [react()],
-  test: {
-    globals: true,
-    environment: 'jsdom',
-    setupFiles: './src/test/setup.ts',
-  },
-})

lab_api.py

@@ -45,7 +45,7 @@ from routes.ml import router as ml_router
 log = logging.getLogger("commander_ai_lab.api")
 
 # ── CORS origins (env-configurable) ────────────────────────────
-_DEFAULT_ORIGINS = "http://localhost:5173,http://localhost:8080"
+_DEFAULT_ORIGINS = "http://localhost:5173,http://localhost:8080,http://192.168.0.240:5173,http://192.168.0.240:8080"
 _allowed = os.environ.get("ALLOWED_ORIGINS", _DEFAULT_ORIGINS)
 allowed_origins = [o.strip() for o in _allowed.split(",") if o.strip()]
 

ml/actions/labeler.py

@@ -240,12 +240,12 @@ def print_label_distribution(labels: np.ndarray) -> Dict[str, int]:
         dist[action.value] = count
 
     total = len(labels)
-    log.info(f"\n{'Action':<25} {'Count':>8} {'Pct':>8}")
-    log.info("─" * 43)
+    logger.info(f"\n{'Action':<25} {'Count':>8} {'Pct':>8}")
+    logger.info("─" * 43)
     for action_name, count in sorted(dist.items(), key=lambda x: -x[1]):
         pct = (count / total * 100) if total > 0 else 0
-        log.info(f"  {action_name:<23} {count:>8} {pct:>7.1f}%")
-    log.info(f"{'─' * 43}")
-    log.info(f"  {'TOTAL':<23} {total:>8}")
+        logger.info(f"  {action_name:<23} {count:>8} {pct:>7.1f}%")
+    logger.info(f"{'─' * 43}")
+    logger.info(f"  {'TOTAL':<23} {total:>8}")
 
     return dist

ml/config/scope.py

@@ -256,3 +256,49 @@ class TrainingConfig:
     log_every: int = 100               # Log every N batches
 
 TRAINING_CONFIG = TrainingConfig()
+
+
+# ══════════════════════════════════════════════════════════
+# Distillation Loop Defaults (Phase 4)
+# ══════════════════════════════════════════════════════════
+
+@dataclass
+class DistillationDefaults:
+    """Default hyperparameters for the closed-loop distillation pipeline.
+
+    These are consumed by ml.training.distillation_loop.DistillationConfig
+    when no explicit override is provided.
+    """
+    max_iterations: int = 10
+    convergence_window: int = 3
+    convergence_threshold: float = 0.01
+
+    # PPO self-play per generation
+    ppo_iterations: int = 50
+    ppo_episodes_per_iter: int = 64
+    ppo_lr: float = 3e-4
+    ppo_clip_epsilon: float = 0.2
+    ppo_entropy_coeff: float = 0.01
+    ppo_eval_episodes: int = 100
+
+    # Dataset mixing
+    forge_weight: float = 1.0
+    ppo_weight: float = 0.5
+    min_reward_threshold: float = 0.0
+
+    # Quality gate thresholds
+    min_forge_accuracy: float = 0.35
+    max_accuracy_drop: float = 0.03
+    min_ppo_win_rate: float = 0.30
+
+    # Retry behaviour on gate failure
+    max_retries_per_generation: int = 2
+    retry_lr_factor: float = 0.5
+    retry_entropy_boost: float = 0.005
+
+    # Output paths
+    results_dir: str = "data/results"
+    history_dir: str = "data/results/distillation-history"
+
+
+DISTILLATION_DEFAULTS = DistillationDefaults()

ml/data/dataset_builder.py

@@ -1,9 +1,17 @@
 """
 Commander AI Lab — Training Dataset Builder
 ════════════════════════════════════════════
+
 Reads ML decision JSONL files, encodes states, labels actions,
 and produces a training-ready dataset saved as NPZ.
 
+Phase 2: Source Awareness (Issue #66)
+  - Scans both Forge sim files (ml-decisions-sim-*.jsonl) and
+    PPO self-play files (ml-decisions-ppo-*.jsonl)
+  - Configurable source_weights for sampling ratios
+  - min_reward_threshold filter for PPO data quality
+  - Each sample tagged with source for downstream analysis
+
 Usage:
     python -m ml.data.dataset_builder --results-dir results/ --output ml/models/dataset.npz
 
@@ -13,6 +21,7 @@ Output NPZ structure:
     game_ids:   object  (N,)      — game ID for each sample
     outcomes:   object  (N,)      — game outcome per sample
     playstyles: object  (N,)      — deck archetype per sample
+    sources:    object  (N,)      — data source ("forge" or "ppo")
 """
 
 import argparse
@@ -20,8 +29,9 @@ import json
 import logging
 import os
 import sys
+from dataclasses import dataclass, field
 from pathlib import Path
-from typing import Dict, List, Tuple
+from typing import Dict, List, Optional, Tuple
 
 import numpy as np
 
@@ -40,22 +50,167 @@ logging.basicConfig(level=logging.INFO, format="[%(name)s] %(message)s")
 logger = logging.getLogger("ml.dataset")
 
 
+# ---------------------------------------------------------------------------
+# Configuration (Phase 2)
+# ---------------------------------------------------------------------------
+
+@dataclass
+class DatasetConfig:
+    """Configuration for dataset building with source awareness."""
+
+    results_dir: str = "results"
+    embeddings_dir: Optional[str] = None
+    max_samples: Optional[int] = None
+
+    # Source weights control sampling ratios between Forge and PPO data.
+    # e.g. {"forge": 1.0, "ppo": 0.5} means keep all Forge data but
+    # randomly sample 50% of PPO data to avoid overwhelming the baseline.
+    source_weights: Dict[str, float] = field(
+        default_factory=lambda: {"forge": 1.0, "ppo": 0.5}
+    )
+
+    # Minimum reward threshold for PPO data — only include decisions
+    # from games where the episode return exceeds this value.
+    # Set to None to disable filtering.
+    min_reward_threshold: Optional[float] = 0.0
+
+
+# ---------------------------------------------------------------------------
+# Source-aware file discovery (Phase 2 — Task 1)
+# ---------------------------------------------------------------------------
+
+def _discover_jsonl_files(results_dir: str) -> Dict[str, List[Path]]:
+    """
+    Scan results directory for both Forge sim and PPO decision files.
+
+    Returns:
+        Dict mapping source name to list of JSONL file paths.
+        Keys: "forge" for ml-decisions-sim-*.jsonl
+              "ppo"   for ml-decisions-ppo-*.jsonl
+    """
+    results_path = Path(results_dir)
+    sources = {}
+
+    # Forge batch sim files
+    forge_files = sorted(results_path.glob("ml-decisions-sim-*.jsonl"))
+    if forge_files:
+        sources["forge"] = forge_files
+
+    # PPO self-play files (from Phase 1 DecisionExporter)
+    ppo_files = sorted(results_path.glob("ml-decisions-ppo-*.jsonl"))
+    if ppo_files:
+        sources["ppo"] = ppo_files
+
+    # Also pick up legacy files that don't have sim/ppo prefix
+    legacy_files = sorted(
+        f for f in results_path.glob("ml-decisions-*.jsonl")
+        if f not in set(forge_files + ppo_files)
+    )
+    if legacy_files:
+        sources.setdefault("forge", []).extend(legacy_files)
+
+    return sources
+
+
+# ---------------------------------------------------------------------------
+# PPO reward filter (Phase 2 — Task 3)
+# ---------------------------------------------------------------------------
+
+def _passes_reward_filter(
+    decision: dict,
+    source: str,
+    min_reward_threshold: Optional[float],
+) -> bool:
+    """
+    Filter PPO decisions by reward threshold.
+    Forge data always passes. PPO data must meet the threshold.
+    """
+    if source != "ppo":
+        return True
+    if min_reward_threshold is None:
+        return True
+    episode_return = decision.get("episode_return", 0.0)
+    return episode_return >= min_reward_threshold
+
+
+# ---------------------------------------------------------------------------
+# Source-aware sampling (Phase 2 — Task 2)
+# ---------------------------------------------------------------------------
+
+def _apply_source_weights(
+    samples_by_source: Dict[str, List[dict]],
+    source_weights: Dict[str, float],
+    rng: np.random.Generator,
+) -> List[dict]:
+    """
+    Apply source weights to control the mixing ratio.
+
+    A weight of 1.0 keeps all samples from that source.
+    A weight of 0.5 randomly keeps ~50% of samples.
+    A weight > 1.0 oversamples (with replacement).
+    """
+    combined = []
+    for source, samples in samples_by_source.items():
+        weight = source_weights.get(source, 1.0)
+        if weight <= 0:
+            logger.info("  Skipping %d %s samples (weight=0)", len(samples), source)
+            continue
+        if weight >= 1.0 and weight == 1.0:
+            combined.extend(samples)
+        elif weight < 1.0:
+            # Subsample
+            n_keep = max(1, int(len(samples) * weight))
+            indices = rng.choice(len(samples), size=n_keep, replace=False)
+            combined.extend(samples[i] for i in indices)
+            logger.info(
+                "  Subsampled %s: %d → %d (weight=%.2f)",
+                source, len(samples), n_keep, weight,
+            )
+        else:
+            # Oversample (weight > 1.0)
+            n_target = int(len(samples) * weight)
+            indices = rng.choice(len(samples), size=n_target, replace=True)
+            combined.extend(samples[i] for i in indices)
+            logger.info(
+                "  Oversampled %s: %d → %d (weight=%.2f)",
+                source, len(samples), n_target, weight,
+            )
+    return combined
+
+
+# ---------------------------------------------------------------------------
+# Main dataset builder (updated for Phase 2)
+# ---------------------------------------------------------------------------
+
 def build_dataset(
     results_dir: str,
     embeddings_dir: str = None,
     max_samples: int = None,
+    source_weights: Dict[str, float] = None,
+    min_reward_threshold: float = 0.0,
 ) -> Dict[str, np.ndarray]:
     """
     Build complete training dataset from all ML decision files.
 
+    Phase 2 additions:
+      - Scans both Forge and PPO JSONL files
+      - Applies source_weights for configurable mixing
+      - Filters PPO data by min_reward_threshold
+      - Tags each sample with its source
+
     Args:
-        results_dir: Path to results/ directory containing ml-decisions-*.jsonl
+        results_dir: Path to results/ directory containing JSONL files
         embeddings_dir: Path to embeddings/ directory (default: auto-detect)
         max_samples: Cap total samples (None = unlimited)
+        source_weights: Dict of source → sampling weight (default: forge=1.0, ppo=0.5)
+        min_reward_threshold: Min episode_return for PPO data (default: 0.0)
 
     Returns:
-        Dict with keys: states, labels, game_ids, outcomes, playstyles
+        Dict with keys: states, labels, game_ids, outcomes, playstyles, sources
     """
+    if source_weights is None:
+        source_weights = {"forge": 1.0, "ppo": 0.5}
+
     # Load card embeddings
     card_index = CardEmbeddingIndex(embeddings_dir)
     if not card_index.load():
@@ -70,10 +225,9 @@ def build_dataset(
 
     encoder = StateEncoder(card_index)
 
-    # Find all JSONL files
-    results_path = Path(results_dir)
-    jsonl_files = sorted(results_path.glob("ml-decisions-*.jsonl"))
-    if not jsonl_files:
+    # --- Phase 2 Task 1: Discover files from both sources ---
+    source_files = _discover_jsonl_files(results_dir)
+    if not source_files:
         logger.error("No ML decision files found in %s", results_dir)
         logger.error("Run batch simulations with --ml-log or enable ML logging in the UI first.")
         raise RuntimeError(
@@ -81,60 +235,114 @@ def build_dataset(
             "Run batch simulations with ML logging enabled first."
         )
 
-    logger.info("Found %d ML decision files", len(jsonl_files))
+    total_files = sum(len(files) for files in source_files.values())
+    logger.info(
+        "Found %d ML decision files across %d sources: %s",
+        total_files,
+        len(source_files),
+        {src: len(files) for src, files in source_files.items()},
+    )
 
+    # --- Read and filter all decisions, grouped by source ---
+    rng = np.random.default_rng(42)
+    samples_by_source: Dict[str, List[dict]] = {}
+    total_skipped = 0
+    total_filtered = 0
+
+    for source, jsonl_files in source_files.items():
+        source_samples = []
+
+        for jsonl_file in jsonl_files:
+            logger.info("Processing %s [%s] ...", jsonl_file.name, source)
+            file_count = 0
+
+            with open(jsonl_file, "r") as f:
+                for line_num, line in enumerate(f):
+                    line = line.strip()
+                    if not line:
+                        continue
+                    try:
+                        decision = json.loads(line)
+
+                        # --- Phase 2 Task 3: PPO reward filter ---
+                        if not _passes_reward_filter(
+                            decision, source, min_reward_threshold
+                        ):
+                            total_filtered += 1
+                            continue
+
+                        # --- Phase 2 Task 4: Tag with source ---
+                        decision["_source"] = source
+
+                        source_samples.append(decision)
+                        file_count += 1
+
+                    except Exception as e:
+                        total_skipped += 1
+                        if total_skipped <= 10:
+                            logger.warning(
+                                "Skipping %s line %d: %s", jsonl_file.name, line_num, e
+                            )
+
+            logger.info("  → %d samples from %s", file_count, jsonl_file.name)
+
+        if source_samples:
+            samples_by_source[source] = source_samples
+
+    if not samples_by_source:
+        logger.error("No valid samples found.")
+        return {}
+
+    # Log per-source counts before weighting
+    for src, samples in samples_by_source.items():
+        logger.info("Source '%s': %d raw samples", src, len(samples))
+    if total_filtered > 0:
+        logger.info("PPO reward filter removed %d samples (threshold=%.2f)",
+                     total_filtered, min_reward_threshold or 0.0)
+
+    # --- Phase 2 Task 2: Apply source weights ---
+    combined_decisions = _apply_source_weights(
+        samples_by_source, source_weights, rng
+    )
+
+    # Apply max_samples cap after weighting
+    if max_samples and len(combined_decisions) > max_samples:
+        rng.shuffle(combined_decisions)
+        combined_decisions = combined_decisions[:max_samples]
+        logger.info("Capped to %d samples", max_samples)
+
+    # --- Encode all decisions ---
     all_states = []
     all_labels = []
     all_game_ids = []
     all_outcomes = []
     all_playstyles = []
-    total_skipped = 0
+    all_sources = []
+    encode_errors = 0
 
-    for jsonl_file in jsonl_files:
-        logger.info("Processing %s ...", jsonl_file.name)
-        file_count = 0
+    for decision in combined_decisions:
+        try:
+            playstyle = decision.get("archetype", "midrange")
+            state_vec = encoder.encode(decision, playstyle)
+            action_idx = label_action(decision)
+            game_id = decision.get("game_id", "unknown")
+            outcome = decision.get("game_outcome", "unknown")
+            source = decision.get("_source", "forge")
 
-        with open(jsonl_file, "r") as f:
-            for line_num, line in enumerate(f):
-                if max_samples and len(all_states) >= max_samples:
-                    break
+            all_states.append(state_vec)
+            all_labels.append(action_idx)
+            all_game_ids.append(game_id)
+            all_outcomes.append(outcome)
+            all_playstyles.append(playstyle)
+            all_sources.append(source)
 
-                line = line.strip()
-                if not line:
-                    continue
-
-                try:
-                    decision = json.loads(line)
-
-                    # Encode state
-                    playstyle = decision.get("archetype", "midrange")
-                    state_vec = encoder.encode(decision, playstyle)
-
-                    # Label action
-                    action_idx = label_action(decision)
-
-                    # Metadata
-                    game_id = decision.get("game_id", f"unknown-{line_num}")
-                    outcome = decision.get("game_outcome", "unknown")
-
-                    all_states.append(state_vec)
-                    all_labels.append(action_idx)
-                    all_game_ids.append(game_id)
-                    all_outcomes.append(outcome)
-                    all_playstyles.append(playstyle)
-                    file_count += 1
-
-                except Exception as e:
-                    total_skipped += 1
-                    if total_skipped <= 10:
-                        logger.warning(
-                            "Skipping %s line %d: %s", jsonl_file.name, line_num, e
-                        )
-
-        logger.info("  → %d samples from %s", file_count, jsonl_file.name)
+        except Exception as e:
+            encode_errors += 1
+            if encode_errors <= 5:
+                logger.warning("Encode error: %s", e)
 
     if not all_states:
-        logger.error("No valid samples found.")
+        logger.error("No valid samples after encoding.")
         return {}
 
     # Convert to arrays
@@ -143,10 +351,11 @@ def build_dataset(
     game_ids = np.array(all_game_ids, dtype=object)
     outcomes = np.array(all_outcomes, dtype=object)
     playstyles = np.array(all_playstyles, dtype=object)
+    sources = np.array(all_sources, dtype=object)
 
     logger.info(
-        "Dataset built: %d samples, %d features, %d actions, %d skipped",
-        len(states), states.shape[1], NUM_ACTIONS, total_skipped,
+        "Dataset built: %d samples, %d features, %d actions, %d skipped, %d encode errors",
+        len(states), states.shape[1], NUM_ACTIONS, total_skipped, encode_errors,
     )
 
     # Print label distribution
@@ -166,12 +375,21 @@ def build_dataset(
     for s, c in sorted(zip(unique_styles, style_counts), key=lambda x: -x[1]):
         logger.info(f"  {str(s):<23} {c:>8}")
 
+    # --- Phase 2 Task 4: Print source distribution ---
+    unique_sources, source_counts = np.unique(sources, return_counts=True)
+    logger.info(f"\n{'Source':<25} {'Count':>8} {'%':>7}")
+    logger.info("─" * 42)
+    for s, c in sorted(zip(unique_sources, source_counts), key=lambda x: -x[1]):
+        pct = 100.0 * c / len(sources)
+        logger.info(f"  {str(s):<23} {c:>8} {pct:>6.1f}%")
+
     return {
         "states": states,
         "labels": labels,
         "game_ids": game_ids,
         "outcomes": outcomes,
         "playstyles": playstyles,
+        "sources": sources,
     }
 
 
@@ -240,7 +458,6 @@ def split_dataset(
         len(train["states"]), len(val["states"]), len(test["states"]),
         split_by_game,
     )
-
     return train, val, test
 
 
@@ -279,14 +496,36 @@ def main():
         "--no-split", action="store_true",
         help="Don't split into train/val/test (save single file)",
     )
+    # Phase 2 CLI arguments
+    parser.add_argument(
+        "--forge-weight", type=float, default=1.0,
+        help="Sampling weight for Forge sim data (default: 1.0)",
+    )
+    parser.add_argument(
+        "--ppo-weight", type=float, default=0.5,
+        help="Sampling weight for PPO self-play data (default: 0.5)",
+    )
+    parser.add_argument(
+        "--min-reward", type=float, default=0.0,
+        help="Minimum episode_return for PPO data (default: 0.0)",
+    )
+
     args = parser.parse_args()
 
+    source_weights = {
+        "forge": args.forge_weight,
+        "ppo": args.ppo_weight,
+    }
+
     # Build dataset
     dataset = build_dataset(
         results_dir=args.results_dir,
         embeddings_dir=args.embeddings_dir,
         max_samples=args.max_samples,
+        source_weights=source_weights,
+        min_reward_threshold=args.min_reward,
     )
+
     if not dataset:
         logger.info("\nNo data to save. Run simulations with --ml-log first.")
         sys.exit(1)

ml/data/quality_gate.py

@@ -0,0 +1,587 @@
+"""
+Commander AI Lab — Quality Gate & Validation
+═════════════════════════════════════════════
+
+Phase 3 (Issue #67): Prevents bad PPO data from degrading the
+supervised model by enforcing quality gates at multiple levels:
+
+1. Forge Validation Holdout — fixed eval set from Forge-only data
+2. Accuracy Gate — reject PPO batch if model accuracy drops on Forge eval
+3. Win Rate Gate — only export PPO decisions above a win rate threshold
+4. Data Quality Metrics — entropy, reward distribution logging
+
+Usage:
+    from ml.data.quality_gate import QualityGate, QualityGateConfig
+
+    gate = QualityGate(QualityGateConfig(
+        min_forge_accuracy=0.40,
+        min_ppo_win_rate=0.30,
+    ))
+
+    # Check if PPO batch should be accepted
+    verdict = gate.evaluate_ppo_batch(
+        forge_eval_accuracy=0.42,
+        ppo_win_rate=0.35,
+        ppo_decisions=decisions_list,
+        baseline_accuracy=0.41,
+    )
+    if verdict.accepted:
+        # merge PPO data into training set
+        ...
+
+Ref: docs/CLOSED-LOOP-DISTILLATION.md — Phase 3
+Issue: #67
+"""
+
+import json
+import logging
+import os
+from dataclasses import dataclass, field
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+import numpy as np
+
+logger = logging.getLogger("ml.quality_gate")
+
+
+# ---------------------------------------------------------------------------
+# Configuration
+# ---------------------------------------------------------------------------
+
+@dataclass
+class QualityGateConfig:
+    """Configuration for the quality gate system."""
+
+    # --- Forge validation holdout (Task 1) ---
+    forge_holdout_ratio: float = 0.12  # 12% of Forge data held out
+    forge_holdout_seed: int = 99       # Fixed seed for reproducibility
+
+    # --- Accuracy gate (Task 2) ---
+    # If model accuracy on Forge eval drops below this absolute floor,
+    # the PPO batch is rejected regardless.
+    min_forge_accuracy: float = 0.35
+
+    # If model accuracy drops by more than this relative amount compared
+    # to the baseline (pre-PPO model), reject the batch.
+    max_accuracy_drop: float = 0.03  # e.g., 41% → 38% = 3% drop → reject
+
+    # --- Win rate gate (Task 3) ---
+    # PPO agent must exceed this win rate before its decisions are exported.
+    # In a 4-player pod, random baseline is 25%.
+    min_ppo_win_rate: float = 0.30
+
+    # --- Quality metrics (Task 4) ---
+    # Directory to write quality reports
+    reports_dir: str = "data/results/quality-reports"
+
+
+# ---------------------------------------------------------------------------
+# Verdict dataclass
+# ---------------------------------------------------------------------------
+
+@dataclass
+class GateVerdict:
+    """Result of a quality gate evaluation."""
+    accepted: bool
+    reason: str
+    metrics: Dict = field(default_factory=dict)
+    timestamp: str = field(default_factory=lambda: datetime.now(timezone.utc).isoformat())
+
+    def to_dict(self) -> dict:
+        return {
+            "accepted": self.accepted,
+            "reason": self.reason,
+            "metrics": self.metrics,
+            "timestamp": self.timestamp,
+        }
+
+
+# ---------------------------------------------------------------------------
+# Forge Validation Holdout (Task 1)
+# ---------------------------------------------------------------------------
+
+def create_forge_holdout(
+    states: np.ndarray,
+    labels: np.ndarray,
+    sources: np.ndarray,
+    game_ids: np.ndarray,
+    holdout_ratio: float = 0.12,
+    seed: int = 99,
+) -> Tuple[Dict[str, np.ndarray], Dict[str, np.ndarray]]:
+    """
+    Split Forge-only data into training and holdout validation sets.
+
+    The holdout set is a fixed eval set used to detect accuracy regression
+    when PPO data is mixed in. Split is done by game_id to prevent leakage.
+
+    Args:
+        states, labels, sources, game_ids: Dataset arrays
+        holdout_ratio: Fraction of Forge games to hold out
+        seed: Fixed random seed for reproducibility
+
+    Returns:
+        (train_data, holdout_data) — each a dict with states, labels, sources, game_ids
+    """
+    # Identify Forge-only samples
+    forge_mask = np.array([s == "forge" for s in sources])
+    ppo_mask = ~forge_mask
+
+    forge_game_ids = game_ids[forge_mask]
+    unique_forge_games = np.unique(forge_game_ids)
+
+    # Deterministic split by game_id
+    rng = np.random.default_rng(seed)
+    rng.shuffle(unique_forge_games)
+
+    n_holdout = max(1, int(len(unique_forge_games) * holdout_ratio))
+    holdout_games = set(unique_forge_games[:n_holdout])
+    train_games = set(unique_forge_games[n_holdout:])
+
+    # Build masks
+    forge_holdout_mask = np.array([
+        (s == "forge" and gid in holdout_games)
+        for s, gid in zip(sources, game_ids)
+    ])
+    forge_train_mask = np.array([
+        (s == "forge" and gid in train_games)
+        for s, gid in zip(sources, game_ids)
+    ])
+
+    # Training set = Forge train + all PPO data
+    train_mask = forge_train_mask | ppo_mask
+
+    def _subset(mask):
+        return {
+            "states": states[mask],
+            "labels": labels[mask],
+            "sources": sources[mask],
+            "game_ids": game_ids[mask],
+        }
+
+    holdout = _subset(forge_holdout_mask)
+    train = _subset(train_mask)
+
+    logger.info(
+        "Forge holdout: %d samples (%d games) held out, %d train samples remaining",
+        forge_holdout_mask.sum(), n_holdout, train_mask.sum(),
+    )
+
+    return train, holdout
+
+
+# ---------------------------------------------------------------------------
+# Accuracy Gate (Task 2)
+# ---------------------------------------------------------------------------
+
+def check_accuracy_gate(
+    current_accuracy: float,
+    baseline_accuracy: float,
+    config: QualityGateConfig,
+) -> GateVerdict:
+    """
+    Check if the current model accuracy on the Forge holdout set
+    is acceptable after training with PPO data mixed in.
+
+    Args:
+        current_accuracy: Accuracy on Forge holdout after training with PPO data
+        baseline_accuracy: Accuracy on Forge holdout from previous model (no PPO)
+        config: Quality gate configuration
+
+    Returns:
+        GateVerdict — accepted=True if accuracy is acceptable
+    """
+    metrics = {
+        "current_accuracy": round(current_accuracy, 4),
+        "baseline_accuracy": round(baseline_accuracy, 4),
+        "accuracy_drop": round(baseline_accuracy - current_accuracy, 4),
+        "min_forge_accuracy": config.min_forge_accuracy,
+        "max_accuracy_drop": config.max_accuracy_drop,
+    }
+
+    # Check absolute floor
+    if current_accuracy < config.min_forge_accuracy:
+        return GateVerdict(
+            accepted=False,
+            reason=(
+                f"Forge eval accuracy ({current_accuracy:.1%}) below absolute "
+                f"minimum ({config.min_forge_accuracy:.1%}). PPO batch rejected."
+            ),
+            metrics=metrics,
+        )
+
+    # Check relative drop
+    drop = baseline_accuracy - current_accuracy
+    if drop > config.max_accuracy_drop:
+        return GateVerdict(
+            accepted=False,
+            reason=(
+                f"Forge eval accuracy dropped {drop:.1%} "
+                f"(from {baseline_accuracy:.1%} to {current_accuracy:.1%}), "
+                f"exceeding max allowed drop of {config.max_accuracy_drop:.1%}. "
+                f"PPO batch rejected."
+            ),
+            metrics=metrics,
+        )
+
+    return GateVerdict(
+        accepted=True,
+        reason=(
+            f"Forge eval accuracy {current_accuracy:.1%} is acceptable "
+            f"(baseline={baseline_accuracy:.1%}, drop={drop:.1%}). "
+            f"PPO batch accepted."
+        ),
+        metrics=metrics,
+    )
+
+
+# ---------------------------------------------------------------------------
+# Win Rate Gate (Task 3)
+# ---------------------------------------------------------------------------
+
+def check_win_rate_gate(
+    ppo_win_rate: float,
+    config: QualityGateConfig,
+    total_episodes: int = 0,
+    min_episodes: int = 20,
+) -> GateVerdict:
+    """
+    Check if the PPO agent's win rate exceeds the minimum threshold
+    before allowing its decisions to be exported.
+
+    Args:
+        ppo_win_rate: Win rate of PPO agent (0.0 to 1.0)
+        config: Quality gate configuration
+        total_episodes: Number of episodes played
+        min_episodes: Minimum episodes required for statistical significance
+
+    Returns:
+        GateVerdict — accepted=True if win rate is sufficient
+    """
+    metrics = {
+        "ppo_win_rate": round(ppo_win_rate, 4),
+        "min_ppo_win_rate": config.min_ppo_win_rate,
+        "total_episodes": total_episodes,
+        "min_episodes": min_episodes,
+    }
+
+    # Check minimum episode count
+    if total_episodes < min_episodes:
+        return GateVerdict(
+            accepted=False,
+            reason=(
+                f"Insufficient episodes ({total_episodes}/{min_episodes}). "
+                f"Need at least {min_episodes} episodes for reliable win rate."
+            ),
+            metrics=metrics,
+        )
+
+    # Check win rate threshold
+    if ppo_win_rate < config.min_ppo_win_rate:
+        return GateVerdict(
+            accepted=False,
+            reason=(
+                f"PPO win rate ({ppo_win_rate:.1%}) below minimum "
+                f"threshold ({config.min_ppo_win_rate:.1%}). "
+                f"Agent not strong enough — decisions not exported."
+            ),
+            metrics=metrics,
+        )
+
+    return GateVerdict(
+        accepted=True,
+        reason=(
+            f"PPO win rate ({ppo_win_rate:.1%}) exceeds minimum "
+            f"({config.min_ppo_win_rate:.1%}) over {total_episodes} episodes. "
+            f"Decisions approved for export."
+        ),
+        metrics=metrics,
+    )
+
+
+# ---------------------------------------------------------------------------
+# Data Quality Metrics (Task 4)
+# ---------------------------------------------------------------------------
+
+def compute_action_entropy(action_indices: np.ndarray, num_actions: int = 8) -> float:
+    """
+    Compute Shannon entropy of the action distribution.
+
+    High entropy = diverse actions (good).
+    Low entropy = collapsed to few actions (bad — possible mode collapse).
+    Max entropy for 8 actions = log2(8) = 3.0 bits.
+    """
+    counts = np.bincount(action_indices, minlength=num_actions).astype(np.float64)
+    probs = counts / max(counts.sum(), 1)
+    # Filter zero probabilities for log
+    probs = probs[probs > 0]
+    entropy = -np.sum(probs * np.log2(probs))
+    return float(entropy)
+
+
+def compute_reward_stats(rewards: np.ndarray) -> Dict[str, float]:
+    """Compute summary statistics for reward/episode_return distribution."""
+    if len(rewards) == 0:
+        return {"mean": 0.0, "std": 0.0, "min": 0.0, "max": 0.0,
+                "median": 0.0, "p25": 0.0, "p75": 0.0}
+    return {
+        "mean": float(np.mean(rewards)),
+        "std": float(np.std(rewards)),
+        "min": float(np.min(rewards)),
+        "max": float(np.max(rewards)),
+        "median": float(np.median(rewards)),
+        "p25": float(np.percentile(rewards, 25)),
+        "p75": float(np.percentile(rewards, 75)),
+    }
+
+
+def compute_quality_metrics(
+    decisions: List[dict],
+    num_actions: int = 8,
+) -> Dict:
+    """
+    Compute comprehensive data quality metrics for a batch of decisions.
+
+    Metrics:
+      - action_entropy: Shannon entropy of action distribution
+      - action_distribution: count per action
+      - reward_stats: mean, std, min, max, median, p25, p75
+      - source_breakdown: count per source
+      - total_decisions: number of decisions
+      - unique_games: number of unique game IDs
+
+    Args:
+        decisions: List of decision dicts (from JSONL records)
+        num_actions: Total number of possible actions
+
+    Returns:
+        Dict of quality metrics
+    """
+    if not decisions:
+        return {"total_decisions": 0, "error": "empty batch"}
+
+    # Extract action indices
+    action_indices = np.array([
+        d.get("action", {}).get("action_idx", d.get("action_idx", 0))
+        for d in decisions
+    ])
+
+    # Extract rewards/episode returns
+    rewards = np.array([
+        d.get("episode_return", d.get("reward", 0.0))
+        for d in decisions
+    ])
+
+    # Action distribution
+    action_counts = np.bincount(action_indices, minlength=num_actions)
+    action_distribution = {
+        str(i): int(c) for i, c in enumerate(action_counts)
+    }
+
+    # Source breakdown
+    sources = [d.get("source", d.get("_source", "unknown")) for d in decisions]
+    source_counts = {}
+    for s in sources:
+        source_counts[s] = source_counts.get(s, 0) + 1
+
+    # Unique games
+    game_ids = set(d.get("game_id", "?") for d in decisions)
+
+    # Entropy
+    entropy = compute_action_entropy(action_indices, num_actions)
+    max_entropy = np.log2(num_actions)
+
+    return {
+        "total_decisions": len(decisions),
+        "unique_games": len(game_ids),
+        "action_entropy": round(entropy, 4),
+        "max_entropy": round(max_entropy, 4),
+        "entropy_ratio": round(entropy / max(max_entropy, 1e-8), 4),
+        "action_distribution": action_distribution,
+        "reward_stats": compute_reward_stats(rewards),
+        "source_breakdown": source_counts,
+    }
+
+
+def log_quality_metrics(metrics: Dict):
+    """Pretty-print quality metrics to the logger."""
+    logger.info("")
+    logger.info("=" * 55)
+    logger.info("  Data Quality Report")
+    logger.info("=" * 55)
+    logger.info("  Total decisions:   %d", metrics.get("total_decisions", 0))
+    logger.info("  Unique games:      %d", metrics.get("unique_games", 0))
+    logger.info("  Action entropy:    %.3f / %.3f (%.0f%%)",
+                metrics.get("action_entropy", 0),
+                metrics.get("max_entropy", 0),
+                metrics.get("entropy_ratio", 0) * 100)
+    logger.info("")
+
+    # Action distribution
+    dist = metrics.get("action_distribution", {})
+    if dist:
+        total = sum(dist.values())
+        logger.info("  %-20s %8s %7s", "Action", "Count", "%")
+        logger.info("  " + "-" * 37)
+        for action_idx, count in sorted(dist.items(), key=lambda x: -x[1]):
+            pct = 100.0 * count / max(total, 1)
+            logger.info("  %-20s %8d %6.1f%%", f"action_{action_idx}", count, pct)
+
+    # Reward stats
+    rstats = metrics.get("reward_stats", {})
+    if rstats:
+        logger.info("")
+        logger.info("  Reward distribution:")
+        logger.info("    mean=%.3f  std=%.3f  min=%.3f  max=%.3f",
+                    rstats.get("mean", 0), rstats.get("std", 0),
+                    rstats.get("min", 0), rstats.get("max", 0))
+        logger.info("    p25=%.3f  median=%.3f  p75=%.3f",
+                    rstats.get("p25", 0), rstats.get("median", 0),
+                    rstats.get("p75", 0))
+
+    # Source breakdown
+    sources = metrics.get("source_breakdown", {})
+    if sources:
+        logger.info("")
+        logger.info("  Source breakdown:")
+        for src, cnt in sorted(sources.items(), key=lambda x: -x[1]):
+            logger.info("    %-12s %d", src, cnt)
+
+    logger.info("=" * 55)
+
+
+# ---------------------------------------------------------------------------
+# Orchestrator — QualityGate class
+# ---------------------------------------------------------------------------
+
+class QualityGate:
+    """
+    Orchestrates all quality checks for the closed-loop distillation pipeline.
+
+    Usage:
+        gate = QualityGate(config)
+
+        # Before exporting PPO decisions:
+        win_verdict = gate.check_win_rate(ppo_win_rate=0.35, total_episodes=100)
+
+        # After training with mixed data:
+        acc_verdict = gate.check_accuracy(
+            current_accuracy=0.42,
+            baseline_accuracy=0.41,
+        )
+
+        # Log quality metrics for a batch:
+        gate.report_batch_quality(decisions)
+    """
+
+    def __init__(self, config: QualityGateConfig = None):
+        self.config = config or QualityGateConfig()
+        self.verdicts: List[GateVerdict] = []
+
+    def check_win_rate(
+        self,
+        ppo_win_rate: float,
+        total_episodes: int = 0,
+        min_episodes: int = 20,
+    ) -> GateVerdict:
+        """Check if PPO agent meets win rate threshold for export."""
+        verdict = check_win_rate_gate(
+            ppo_win_rate, self.config, total_episodes, min_episodes
+        )
+        self.verdicts.append(verdict)
+        if verdict.accepted:
+            logger.info("WIN RATE GATE: PASS — %s", verdict.reason)
+        else:
+            logger.warning("WIN RATE GATE: FAIL — %s", verdict.reason)
+        return verdict
+
+    def check_accuracy(
+        self,
+        current_accuracy: float,
+        baseline_accuracy: float,
+    ) -> GateVerdict:
+        """Check if model accuracy on Forge holdout is acceptable."""
+        verdict = check_accuracy_gate(
+            current_accuracy, baseline_accuracy, self.config
+        )
+        self.verdicts.append(verdict)
+        if verdict.accepted:
+            logger.info("ACCURACY GATE: PASS — %s", verdict.reason)
+        else:
+            logger.warning("ACCURACY GATE: FAIL — %s", verdict.reason)
+        return verdict
+
+    def report_batch_quality(self, decisions: List[dict]) -> Dict:
+        """Compute and log quality metrics for a decision batch."""
+        metrics = compute_quality_metrics(decisions)
+        log_quality_metrics(metrics)
+
+        # Save report to disk
+        os.makedirs(self.config.reports_dir, exist_ok=True)
+        timestamp = datetime.now(timezone.utc).strftime("%Y%m%d_%H%M%S")
+        report_path = os.path.join(
+            self.config.reports_dir, f"quality_{timestamp}.json"
+        )
+        with open(report_path, "w") as f:
+            json.dump(metrics, f, indent=2)
+        logger.info("Quality report saved: %s", report_path)
+
+        return metrics
+
+    def evaluate_ppo_batch(
+        self,
+        forge_eval_accuracy: float,
+        ppo_win_rate: float,
+        ppo_decisions: List[dict],
+        baseline_accuracy: float,
+        total_episodes: int = 0,
+    ) -> GateVerdict:
+        """
+        Run all quality gates on a PPO batch. Returns a combined verdict.
+
+        This is the main entry point for the distillation pipeline to decide
+        whether to accept or reject a batch of PPO-generated training data.
+        """
+        # 1. Win rate gate
+        win_verdict = self.check_win_rate(ppo_win_rate, total_episodes)
+        if not win_verdict.accepted:
+            return win_verdict
+
+        # 2. Accuracy gate
+        acc_verdict = self.check_accuracy(forge_eval_accuracy, baseline_accuracy)
+        if not acc_verdict.accepted:
+            return acc_verdict
+
+        # 3. Log quality metrics (informational, doesn't block)
+        quality_metrics = self.report_batch_quality(ppo_decisions)
+
+        # 4. Check for extreme entropy collapse (soft warning)
+        entropy_ratio = quality_metrics.get("entropy_ratio", 1.0)
+        if entropy_ratio < 0.3:
+            logger.warning(
+                "LOW ENTROPY WARNING: action entropy ratio %.2f — "
+                "possible mode collapse in PPO agent",
+                entropy_ratio,
+            )
+
+        return GateVerdict(
+            accepted=True,
+            reason="All quality gates passed.",
+            metrics={
+                "win_rate": win_verdict.metrics,
+                "accuracy": acc_verdict.metrics,
+                "quality": quality_metrics,
+            },
+        )
+
+    def save_verdict_history(self, path: str = None):
+        """Save all verdict history to a JSON file."""
+        if path is None:
+            os.makedirs(self.config.reports_dir, exist_ok=True)
+            path = os.path.join(self.config.reports_dir, "verdict_history.json")
+
+        history = [v.to_dict() for v in self.verdicts]
+        with open(path, "w") as f:
+            json.dump(history, f, indent=2)
+        logger.info("Verdict history saved: %s (%d entries)", path, len(history))

ml/eval/elo_tracker.py

@@ -0,0 +1,407 @@
+"""
+Commander AI Lab — ELO Tracker & Cross-Generation Tournament
+═══════════════════════════════════════════════════════════════
+Phase 6 (Issue #70): Quantify improvement across distillation
+generations using ELO ratings.
+
+- Runs round-robin tournaments between generation checkpoints
+  and baselines (heuristic, random)
+- Computes ELO ratings using the standard formula
+- Persists ELO history to `data/elo_history.json`
+- Provides ELO delta for convergence detection
+
+Reuses `run_match`, `LearnedPolicy`, `HeuristicPolicy`,
+`RandomPolicy` from `ml/eval/tournament.py`.
+
+Usage:
+    python -m ml.eval.elo_tracker
+    python -m ml.eval.elo_tracker --episodes 50 --output data/elo_history.json
+"""
+
+import json
+import logging
+import math
+import os
+import sys
+import time
+from dataclasses import dataclass, field
+from datetime import datetime, timezone
+from itertools import combinations
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+project_root = str(Path(__file__).parent.parent.parent)
+if project_root not in sys.path:
+    sys.path.insert(0, project_root)
+
+from ml.eval.tournament import (
+    run_match, LearnedPolicy, HeuristicPolicy, RandomPolicy,
+)
+
+logger = logging.getLogger("ml.eval.elo")
+
+
+# ═══════════════════════════════════════════════════════════
+# ELO Rating Engine
+# ═══════════════════════════════════════════════════════════
+
+DEFAULT_K = 32
+DEFAULT_START_ELO = 1200.0
+
+
+class EloTracker:
+    """Standard ELO rating tracker."""
+
+    def __init__(self, k_factor: float = DEFAULT_K, start_elo: float = DEFAULT_START_ELO):
+        self.k = k_factor
+        self.start_elo = start_elo
+        self.ratings: Dict[str, float] = {}
+
+    def ensure_player(self, name: str):
+        if name not in self.ratings:
+            self.ratings[name] = self.start_elo
+
+    def expected_score(self, rating_a: float, rating_b: float) -> float:
+        return 1.0 / (1.0 + math.pow(10, (rating_b - rating_a) / 400.0))
+
+    def update(self, winner: str, loser: str):
+        """Update ratings after a decisive match."""
+        self.ensure_player(winner)
+        self.ensure_player(loser)
+
+        e_win = self.expected_score(self.ratings[winner], self.ratings[loser])
+        e_lose = self.expected_score(self.ratings[loser], self.ratings[winner])
+
+        self.ratings[winner] += self.k * (1.0 - e_win)
+        self.ratings[loser] += self.k * (0.0 - e_lose)
+
+    def update_draw(self, player_a: str, player_b: str):
+        """Update ratings after a draw."""
+        self.ensure_player(player_a)
+        self.ensure_player(player_b)
+
+        e_a = self.expected_score(self.ratings[player_a], self.ratings[player_b])
+        e_b = self.expected_score(self.ratings[player_b], self.ratings[player_a])
+
+        self.ratings[player_a] += self.k * (0.5 - e_a)
+        self.ratings[player_b] += self.k * (0.5 - e_b)
+
+    def get_ratings(self) -> Dict[str, float]:
+        """Return a copy of current ratings, rounded to 1 decimal."""
+        return {k: round(v, 1) for k, v in self.ratings.items()}
+
+
+# ═══════════════════════════════════════════════════════════
+# ELO Result
+# ═══════════════════════════════════════════════════════════
+
+@dataclass
+class EloResult:
+    """Result of an ELO-rated tournament."""
+    ratings: Dict[str, float] = field(default_factory=dict)
+    match_count: int = 0
+    total_time_s: float = 0.0
+    policies: List[str] = field(default_factory=list)
+    rating_progression: List[Dict[str, float]] = field(default_factory=list)
+
+    def to_dict(self) -> dict:
+        return {
+            "ratings": self.ratings,
+            "match_count": self.match_count,
+            "total_time_s": round(self.total_time_s, 1),
+            "policies": self.policies,
+            "rating_progression": self.rating_progression,
+        }
+
+
+# ═══════════════════════════════════════════════════════════
+# ELO History (persistence)
+# ═══════════════════════════════════════════════════════════
+
+class EloHistory:
+    """Persists ELO ratings across tournament runs."""
+
+    def __init__(self, path: str = "data/elo_history.json"):
+        self.path = path
+        self.entries: List[dict] = []
+        self._load()
+
+    def _load(self):
+        if os.path.exists(self.path):
+            try:
+                with open(self.path, "r") as f:
+                    data = json.load(f)
+                self.entries = data.get("entries", [])
+            except Exception:
+                self.entries = []
+
+    def save(self):
+        os.makedirs(os.path.dirname(self.path) or ".", exist_ok=True)
+        with open(self.path, "w") as f:
+            json.dump({"entries": self.entries}, f, indent=2)
+
+    def append(self, generation: int, ratings: Dict[str, float]):
+        """Add a new ELO snapshot after a tournament."""
+        self.entries.append({
+            "timestamp": datetime.now(timezone.utc).isoformat(),
+            "generation": generation,
+            "ratings": {k: round(v, 1) for k, v in ratings.items()},
+        })
+        self.save()
+
+    def get_elo_delta(self, window: int = 2) -> Optional[float]:
+        """
+        Compute average ELO gain of the latest generation model
+        over the last `window` entries.
+
+        Returns None if insufficient data.
+        """
+        if len(self.entries) < window:
+            return None
+
+        recent = self.entries[-window:]
+        deltas = []
+
+        for i in range(1, len(recent)):
+            prev_ratings = recent[i - 1]["ratings"]
+            curr_ratings = recent[i]["ratings"]
+
+            # Find the latest generation model name in current entry
+            gen_models = [k for k in curr_ratings if k.startswith("gen-")]
+            if not gen_models:
+                continue
+
+            latest_gen = sorted(gen_models)[-1]
+            curr_elo = curr_ratings.get(latest_gen, DEFAULT_START_ELO)
+
+            # Compare to previous entry's latest gen model, or heuristic
+            prev_gen_models = [k for k in prev_ratings if k.startswith("gen-")]
+            if prev_gen_models:
+                prev_latest = sorted(prev_gen_models)[-1]
+                prev_elo = prev_ratings.get(prev_latest, DEFAULT_START_ELO)
+            else:
+                prev_elo = prev_ratings.get("heuristic", DEFAULT_START_ELO)
+
+            deltas.append(curr_elo - prev_elo)
+
+        if not deltas:
+            return None
+
+        return sum(deltas) / len(deltas)
+
+    def to_dict(self) -> dict:
+        return {"entries": self.entries}
+
+    @classmethod
+    def from_dict(cls, data: dict, path: str = "data/elo_history.json") -> "EloHistory":
+        h = cls.__new__(cls)
+        h.path = path
+        h.entries = data.get("entries", [])
+        return h
+
+
+# ═══════════════════════════════════════════════════════════
+# Tournament Functions
+# ═══════════════════════════════════════════════════════════
+
+def run_elo_tournament(
+    policies: Dict[str, object],
+    episodes_per_matchup: int = 50,
+    playstyle: str = "midrange",
+    k_factor: float = DEFAULT_K,
+) -> EloResult:
+    """
+    Run a round-robin ELO-rated tournament.
+
+    Uses `run_match` from tournament.py for match execution.
+
+    Args:
+        policies: Dict mapping name → policy object (with select_action method)
+        episodes_per_matchup: Games per pair (played both sides)
+        playstyle: Game playstyle
+        k_factor: ELO K-factor
+
+    Returns:
+        EloResult with final ratings, match count, and progression
+    """
+    t_start = time.time()
+    names = list(policies.keys())
+    tracker = EloTracker(k_factor=k_factor)
+
+    # Initialize all players
+    for name in names:
+        tracker.ensure_player(name)
+
+    progression = [tracker.get_ratings().copy()]
+    total_matches = 0
+
+    logger.info("ELO Tournament: %d policies, %d games/matchup", len(names), episodes_per_matchup)
+
+    for name_a, name_b in combinations(names, 2):
+        policy_a = policies[name_a]
+        policy_b = policies[name_b]
+
+        for ep in range(episodes_per_matchup):
+            # Game 1: A as seat 0
+            m1 = run_match(policy_a, name_a, policy_b, name_b, playstyle=playstyle)
+            total_matches += 1
+            if m1.winner == name_a:
+                tracker.update(name_a, name_b)
+            elif m1.winner == name_b:
+                tracker.update(name_b, name_a)
+            else:
+                tracker.update_draw(name_a, name_b)
+
+            # Game 2: B as seat 0
+            m2 = run_match(policy_b, name_b, policy_a, name_a, playstyle=playstyle)
+            total_matches += 1
+            if m2.winner == name_a:
+                tracker.update(name_a, name_b)
+            elif m2.winner == name_b:
+                tracker.update(name_b, name_a)
+            else:
+                tracker.update_draw(name_a, name_b)
+
+        # Record progression after each matchup
+        progression.append(tracker.get_ratings().copy())
+
+        logger.info(
+            "  %s (%.0f) vs %s (%.0f)",
+            name_a, tracker.ratings[name_a],
+            name_b, tracker.ratings[name_b],
+        )
+
+    return EloResult(
+        ratings=tracker.get_ratings(),
+        match_count=total_matches,
+        total_time_s=time.time() - t_start,
+        policies=names,
+        rating_progression=progression,
+    )
+
+
+def run_generation_tournament(
+    checkpoint_dir: str = "ml/models/checkpoints",
+    episodes_per_matchup: int = 50,
+    playstyle: str = "midrange",
+    k_factor: float = DEFAULT_K,
+) -> EloResult:
+    """
+    Discover generation checkpoints and run an ELO tournament.
+
+    Looks for `gen-*/best_policy.pt` under checkpoint_dir.
+    Also includes heuristic and random baselines.
+    """
+    policies: Dict[str, object] = {
+        "heuristic": HeuristicPolicy(),
+        "random": RandomPolicy(),
+    }
+
+    ckpt_path = Path(checkpoint_dir)
+    if ckpt_path.exists():
+        for gen_dir in sorted(ckpt_path.glob("gen-*")):
+            model_path = gen_dir / "best_policy.pt"
+            if model_path.exists():
+                name = gen_dir.name  # e.g., "gen-001"
+                policies[name] = LearnedPolicy(str(model_path))
+                logger.info("Loaded %s: %s", name, model_path)
+
+        # Also check standard checkpoints
+        sup_path = ckpt_path / "best_policy.pt"
+        if sup_path.exists() and "supervised" not in policies:
+            policies["supervised"] = LearnedPolicy(str(sup_path))
+
+        ppo_path = ckpt_path / "best_ppo.pt"
+        if ppo_path.exists() and "ppo" not in policies:
+            policies["ppo"] = LearnedPolicy(str(ppo_path))
+
+    if len(policies) < 2:
+        logger.warning("Need at least 2 policies for ELO tournament")
+        return EloResult(
+            ratings={k: DEFAULT_START_ELO for k in policies},
+            policies=list(policies.keys()),
+        )
+
+    logger.info("Running ELO tournament with %d policies: %s", len(policies), list(policies.keys()))
+
+    return run_elo_tournament(
+        policies=policies,
+        episodes_per_matchup=episodes_per_matchup,
+        playstyle=playstyle,
+        k_factor=k_factor,
+    )
+
+
+# ═══════════════════════════════════════════════════════════
+# CLI
+# ═══════════════════════════════════════════════════════════
+
+def main():
+    """CLI entry point for ELO tournament."""
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        description="Commander AI Lab — ELO Tournament"
+    )
+    parser.add_argument(
+        "--episodes", type=int, default=50,
+        help="Episodes per matchup (default: 50)",
+    )
+    parser.add_argument(
+        "--checkpoint-dir", default="ml/models/checkpoints",
+        help="Checkpoint directory (default: ml/models/checkpoints)",
+    )
+    parser.add_argument(
+        "--playstyle", default="midrange",
+        help="Playstyle (default: midrange)",
+    )
+    parser.add_argument(
+        "--output", default="data/elo_history.json",
+        help="Output path for ELO history (default: data/elo_history.json)",
+    )
+    parser.add_argument(
+        "--k-factor", type=float, default=32,
+        help="ELO K-factor (default: 32)",
+    )
+
+    args = parser.parse_args()
+
+    logging.basicConfig(level=logging.INFO, format="%(message)s")
+
+    result = run_generation_tournament(
+        checkpoint_dir=args.checkpoint_dir,
+        episodes_per_matchup=args.episodes,
+        playstyle=args.playstyle,
+        k_factor=args.k_factor,
+    )
+
+    # Print results
+    logger.info("")
+    logger.info("=" * 50)
+    logger.info("  ELO RATINGS")
+    logger.info("=" * 50)
+    sorted_ratings = sorted(result.ratings.items(), key=lambda x: x[1], reverse=True)
+    for name, elo in sorted_ratings:
+        logger.info("  %-20s %7.1f", name, elo)
+    logger.info("")
+    logger.info("  %d matches in %.1f s", result.match_count, result.total_time_s)
+    logger.info("=" * 50)
+
+    # Save to history
+    history = EloHistory(path=args.output)
+    # Use the latest generation number, or 0 if no gen models
+    gen_models = [k for k in result.ratings if k.startswith("gen-")]
+    gen_num = 0
+    if gen_models:
+        try:
+            gen_num = max(int(g.split("-")[1]) for g in gen_models)
+        except (ValueError, IndexError):
+            pass
+    history.append(gen_num, result.ratings)
+    logger.info("ELO history saved: %s", args.output)
+
+    print(json.dumps(result.to_dict(), indent=2))
+
+
+if __name__ == "__main__":
+    main()

ml/training/decision_exporter.py

@@ -0,0 +1,286 @@
+"""
+Commander AI Lab — PPO Decision Exporter
+════════════════════════════════════════
+
+Exports PPO self-play decisions as JSONL files in the same schema
+as Forge DecisionSnapshot records. This enables the closed-loop
+distillation pipeline where PPO-discovered strategies flow back
+into the supervised training dataset.
+
+Output files: data/results/ml-decisions-ppo-{batch_id}.jsonl
+
+Each line is a JSON object compatible with the dataset_builder.py
+ingestion pipeline, tagged with source="ppo" metadata.
+
+Ref: docs/CLOSED-LOOP-DISTILLATION.md — Phase 1
+Issue: #65
+"""
+
+import json
+import logging
+import os
+import uuid
+from dataclasses import dataclass, field
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Dict, List, Optional
+
+import sys
+
+project_root = str(Path(__file__).parent.parent.parent)
+if project_root not in sys.path:
+    sys.path.insert(0, project_root)
+
+from ml.config.scope import IDX_TO_ACTION, MacroAction
+
+logger = logging.getLogger("ml.decision_exporter")
+
+
+# ---------------------------------------------------------------------------
+# Configuration
+# ---------------------------------------------------------------------------
+
+@dataclass
+class ExporterConfig:
+    """Configuration for the PPO decision exporter."""
+
+    output_dir: str = "data/results"
+    only_wins: bool = True          # Only export decisions from winning games
+    model_version: str = "unknown"
+    min_episode_steps: int = 3      # Skip very short episodes (likely noise)
+
+
+# ---------------------------------------------------------------------------
+# Decision Record Builder
+# ---------------------------------------------------------------------------
+
+def _macro_action_to_forge_type(action: MacroAction) -> str:
+    """Map a MacroAction enum to the closest Forge action type string."""
+    mapping = {
+        MacroAction.CAST_CREATURE: "cast_spell",
+        MacroAction.CAST_REMOVAL: "cast_spell",
+        MacroAction.CAST_DRAW: "cast_spell",
+        MacroAction.CAST_RAMP: "cast_spell",
+        MacroAction.CAST_COMMANDER: "cast_spell",
+        MacroAction.ATTACK_OPPONENT: "attack",
+        MacroAction.HOLD_MANA: "pass_priority",
+        MacroAction.PASS: "pass_priority",
+    }
+    return mapping.get(action, "pass_priority")
+
+
+def build_decision_record(
+    game_state_snapshot: dict,
+    action_idx: int,
+    reward: float,
+    agent_seat: int,
+    game_id: str,
+    game_outcome: str,
+    archetype: str = "midrange",
+    source: str = "ppo",
+    model_version: str = "unknown",
+    episode_return: float = 0.0,
+) -> dict:
+    """
+    Build a single decision record in Forge-compatible JSONL format.
+
+    The record mirrors the schema consumed by dataset_builder.py so that
+    PPO-generated data can be mixed into the supervised training set.
+    """
+    action = IDX_TO_ACTION[action_idx]
+    players = game_state_snapshot.get("players", [])
+
+    # Build per-player state matching Forge snapshot layout
+    player_snapshots = []
+    for i, p in enumerate(players):
+        player_snapshots.append({
+            "seat": i,
+            "life": p.get("life_total", 40),
+            "handSize": p.get("cards_in_hand", 0),
+            "permanentCount": p.get("creatures_on_battlefield", 0),
+            "graveyardSize": p.get("cards_in_graveyard", 0),
+            "manaAvailable": p.get("mana_available", 0),
+            "commanderDamageTaken": p.get("commander_damage_taken", 0),
+            "totalPowerOnBoard": p.get("total_power_on_board", 0),
+            "commanderTax": p.get("commander_tax", 0),
+        })
+
+    return {
+        # --- Core fields consumed by dataset_builder / labeler ---
+        "game_id": game_id,
+        "game_outcome": game_outcome,
+        "archetype": archetype,
+
+        # Action info (used by ml.actions.labeler)
+        "action": {
+            "type": _macro_action_to_forge_type(action),
+            "macro_action": action.value,
+            "action_idx": action_idx,
+            "seat": agent_seat,
+        },
+
+        # Board / game state
+        "turn": game_state_snapshot.get("turn", 1),
+        "phase": game_state_snapshot.get("phase", "main_1"),
+        "active_seat": game_state_snapshot.get("active_seat", 0),
+        "players": player_snapshots,
+
+        # --- PPO-specific metadata (distinguishes from Forge data) ---
+        "source": source,
+        "model_version": model_version,
+        "reward": round(reward, 6),
+        "episode_return": round(episode_return, 6),
+    }
+
+
+# ---------------------------------------------------------------------------
+# DecisionExporter — accumulates episode decisions and flushes to JSONL
+# ---------------------------------------------------------------------------
+
+class DecisionExporter:
+    """
+    Collects decisions from PPO self-play episodes and writes them
+    to JSONL files compatible with the supervised training pipeline.
+
+    Usage::
+
+        exporter = DecisionExporter(ExporterConfig(model_version="gen-0"))
+
+        for ep in range(num_episodes):
+            exporter.begin_episode(agent_seat=0, playstyle="midrange")
+            for step in episode_steps:
+                exporter.record_step(state_snapshot, action_idx, reward)
+            exporter.end_episode(won=True, episode_return=3.14)
+
+        exporter.flush()   # writes JSONL to disk
+        print(exporter.stats)
+    """
+
+    def __init__(self, config: ExporterConfig = None):
+        self.config = config or ExporterConfig()
+        self._batch_id = str(uuid.uuid4())[:8]
+        self._records: List[dict] = []
+        self._episode_buffer: List[dict] = []
+        self._current_game_id: Optional[str] = None
+        self._current_seat: int = 0
+        self._current_playstyle: str = "midrange"
+
+        # Stats
+        self._total_episodes = 0
+        self._exported_episodes = 0
+        self._exported_decisions = 0
+        self._skipped_losses = 0
+        self._skipped_short = 0
+
+    # -- Episode lifecycle ---------------------------------------------------
+
+    def begin_episode(self, agent_seat: int = 0, playstyle: str = "midrange"):
+        """Start tracking a new episode."""
+        self._episode_buffer = []
+        self._current_game_id = f"ppo-{self._batch_id}-{self._total_episodes}"
+        self._current_seat = agent_seat
+        self._current_playstyle = playstyle
+
+    def record_step(
+        self,
+        game_state_snapshot: dict,
+        action_idx: int,
+        reward: float,
+    ):
+        """Record a single decision step within the current episode."""
+        self._episode_buffer.append({
+            "snapshot": game_state_snapshot,
+            "action_idx": action_idx,
+            "reward": reward,
+        })
+
+    def end_episode(self, won: bool, episode_return: float = 0.0):
+        """
+        Finalize the current episode.
+
+        If config.only_wins is True, decisions from losing episodes
+        are discarded (higher signal-to-noise for distillation).
+        """
+        self._total_episodes += 1
+
+        # Gate: skip losses if configured
+        if self.config.only_wins and not won:
+            self._skipped_losses += 1
+            self._episode_buffer = []
+            return
+
+        # Gate: skip very short episodes
+        if len(self._episode_buffer) < self.config.min_episode_steps:
+            self._skipped_short += 1
+            self._episode_buffer = []
+            return
+
+        game_outcome = "win" if won else "loss"
+
+        for step in self._episode_buffer:
+            record = build_decision_record(
+                game_state_snapshot=step["snapshot"],
+                action_idx=step["action_idx"],
+                reward=step["reward"],
+                agent_seat=self._current_seat,
+                game_id=self._current_game_id,
+                game_outcome=game_outcome,
+                archetype=self._current_playstyle,
+                source="ppo",
+                model_version=self.config.model_version,
+                episode_return=episode_return,
+            )
+            self._records.append(record)
+
+        self._exported_episodes += 1
+        self._exported_decisions += len(self._episode_buffer)
+        self._episode_buffer = []
+
+    # -- Persistence ---------------------------------------------------------
+
+    def flush(self) -> Optional[str]:
+        """
+        Write all accumulated records to a JSONL file.
+
+        Returns:
+            Path to the written file, or None if no records to write.
+        """
+        if not self._records:
+            logger.info("No PPO decisions to export (0 records).")
+            return None
+
+        os.makedirs(self.config.output_dir, exist_ok=True)
+        filename = f"ml-decisions-ppo-{self._batch_id}.jsonl"
+        filepath = os.path.join(self.config.output_dir, filename)
+
+        with open(filepath, "w") as f:
+            for record in self._records:
+                f.write(json.dumps(record) + "\n")
+
+        logger.info(
+            "Exported %d PPO decisions (%d episodes) to %s",
+            len(self._records),
+            self._exported_episodes,
+            filepath,
+        )
+        self._records = []
+        return filepath
+
+    # -- Reporting -----------------------------------------------------------
+
+    @property
+    def stats(self) -> dict:
+        """Return export statistics."""
+        return {
+            "batch_id": self._batch_id,
+            "total_episodes": self._total_episodes,
+            "exported_episodes": self._exported_episodes,
+            "exported_decisions": self._exported_decisions,
+            "skipped_losses": self._skipped_losses,
+            "skipped_short": self._skipped_short,
+            "pending_records": len(self._records),
+        }
+
+    @property
+    def batch_id(self) -> str:
+        return self._batch_id

ml/training/distillation_loop.py

@@ -0,0 +1,908 @@
+"""
+Commander AI Lab — Distillation Loop Orchestrator
+═══════════════════════════════════════════════════
+
+Phase 4 (Issue #68): Automates the full closed-loop distillation cycle:
+
+    1. Supervised train on current dataset (Forge + any existing PPO data)
+    2. Run N episodes of PPO self-play using the supervised model as starting policy
+    3. Export winning PPO decisions to JSONL
+    4. Quality gate check
+    5. If passed → merge into dataset and repeat from step 1
+    6. If failed → discard PPO batch, adjust hyperparameters, retry
+
+Each iteration is a "generation" — data and models are tagged with generation
+number for traceability.
+
+Convergence detection:
+  - Stops if win rate plateaus across `convergence_window` generations
+  - Hard stop at `max_iterations`
+
+Ref: docs/CLOSED-LOOP-DISTILLATION.md — Phase 4
+Issue: #68
+"""
+
+import json
+import logging
+import os
+import shutil
+import sys
+import time
+from dataclasses import dataclass, field
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Dict, List, Optional
+
+import numpy as np
+
+project_root = str(Path(__file__).parent.parent.parent)
+if project_root not in sys.path:
+    sys.path.insert(0, project_root)
+
+from ml.config.scope import (
+    NUM_ACTIONS, STATE_DIMS, TRAINING_CONFIG,
+)
+from ml.data.quality_gate import QualityGate, QualityGateConfig, GateVerdict
+from ml.training.decision_exporter import DecisionExporter, ExporterConfig
+
+logger = logging.getLogger("ml.distillation")
+
+
+# ═══════════════════════════════════════════════════════════
+# Configuration
+# ═══════════════════════════════════════════════════════════
+
+@dataclass
+class DistillationConfig:
+    """Configuration for the distillation loop orchestrator."""
+
+    # --- Loop control ---
+    max_iterations: int = 10
+    convergence_window: int = 3       # Check last N generations for plateau
+    convergence_threshold: float = 0.01  # Min win-rate improvement to not plateau
+
+    # --- Paths ---
+    results_dir: str = "results"
+    models_dir: str = "ml/models"
+    checkpoint_dir: str = "ml/models/checkpoints"
+    history_dir: str = "results/distillation-history"
+
+    # --- Supervised training ---
+    supervised_epochs: int = 30
+    supervised_lr: float = 1e-3
+    supervised_batch_size: int = 64
+    supervised_patience: int = 5
+
+    # --- PPO self-play ---
+    ppo_iterations: int = 50
+    ppo_episodes_per_iter: int = 64
+    ppo_batch_size: int = 256
+    ppo_lr: float = 3e-4
+    ppo_clip_epsilon: float = 0.2
+    ppo_entropy_coeff: float = 0.01
+    ppo_eval_episodes: int = 100
+    opponent: str = "heuristic"
+    playstyle: str = "midrange"
+
+    # --- Dataset building ---
+    forge_weight: float = 1.0
+    ppo_weight: float = 0.5
+    min_reward_threshold: float = 0.0
+
+    # --- Quality gate ---
+    min_forge_accuracy: float = 0.35
+    max_accuracy_drop: float = 0.03
+    min_ppo_win_rate: float = 0.30
+
+    # --- Retry on gate failure ---
+    max_retries_per_generation: int = 2
+    retry_lr_factor: float = 0.5       # Halve PPO LR on retry
+    retry_entropy_boost: float = 0.005  # Increase entropy coeff on retry
+
+    # --- ELO convergence (Phase 6) ---
+    elo_convergence_enabled: bool = False   # Off by default
+    elo_convergence_threshold: float = 20.0 # Stop if ELO gain < this
+    elo_tournament_episodes: int = 30       # Games per matchup for ELO mini-tournament
+
+
+# ═══════════════════════════════════════════════════════════
+# Generation metadata
+# ═══════════════════════════════════════════════════════════
+
+@dataclass
+class GenerationRecord:
+    """Tracks metadata for a single distillation generation."""
+    generation: int
+    started_at: str = ""
+    completed_at: str = ""
+    status: str = "pending"  # pending | running | passed | failed | skipped
+
+    # Supervised training results
+    supervised_val_acc: float = 0.0
+    supervised_best_epoch: int = 0
+    supervised_checkpoint: str = ""
+
+    # PPO self-play results
+    ppo_win_rate: float = 0.0
+    ppo_best_win_rate: float = 0.0
+    ppo_episodes: int = 0
+    ppo_decisions_exported: int = 0
+    ppo_export_path: str = ""
+
+    # Quality gate
+    gate_accepted: bool = False
+    gate_reason: str = ""
+    baseline_accuracy: float = 0.0
+    post_merge_accuracy: float = 0.0
+
+    # Dataset stats
+    dataset_size: int = 0
+    forge_samples: int = 0
+    ppo_samples: int = 0
+
+    retries: int = 0
+    error: str = ""
+    elo_rating: float = 0.0
+
+    def to_dict(self) -> dict:
+        return {k: v for k, v in self.__dict__.items()}
+
+
+# ═══════════════════════════════════════════════════════════
+# Distillation Loop Orchestrator
+# ═══════════════════════════════════════════════════════════
+
+class DistillationLoop:
+    """
+    Orchestrates the full closed-loop distillation pipeline.
+
+    Each "generation" runs the complete cycle:
+      supervised train → PPO self-play → export → quality gate → merge
+
+    The loop tracks convergence by monitoring PPO win rate across
+    generations and stops when improvement plateaus or max_iterations
+    is reached.
+
+    Usage::
+
+        config = DistillationConfig(max_iterations=5, ppo_iterations=30)
+        loop = DistillationLoop(config)
+        summary = loop.run()
+    """
+
+    def __init__(self, config: DistillationConfig = None):
+        self.config = config or DistillationConfig()
+        self.generations: List[GenerationRecord] = []
+        self.quality_gate = QualityGate(QualityGateConfig(
+            min_forge_accuracy=self.config.min_forge_accuracy,
+            max_accuracy_drop=self.config.max_accuracy_drop,
+            min_ppo_win_rate=self.config.min_ppo_win_rate,
+        ))
+        self._baseline_accuracy: Optional[float] = None
+        self._device: Optional[str] = None
+        self._stopped = False
+
+        # Ensure output directories exist
+        os.makedirs(self.config.history_dir, exist_ok=True)
+        os.makedirs(self.config.checkpoint_dir, exist_ok=True)
+        os.makedirs(self.config.results_dir, exist_ok=True)
+
+    # ------------------------------------------------------------------
+    # Public API
+    # ------------------------------------------------------------------
+
+    def run(self, progress_callback=None) -> Dict:
+        """
+        Run the full distillation loop.
+
+        Args:
+            progress_callback: Optional callable(generation, record) for
+                               progress reporting (e.g. to a web UI).
+
+        Returns:
+            Summary dict with per-generation metrics and convergence info.
+        """
+        cfg = self.config
+        self._device = self._detect_device()
+
+        logger.info("=" * 65)
+        logger.info("  Commander AI Lab — Distillation Loop")
+        logger.info("=" * 65)
+        logger.info("  Max iterations:     %d", cfg.max_iterations)
+        logger.info("  Convergence window: %d", cfg.convergence_window)
+        logger.info("  PPO iters/gen:      %d", cfg.ppo_iterations)
+        logger.info("  PPO episodes/iter:  %d", cfg.ppo_episodes_per_iter)
+        logger.info("  Supervised epochs:  %d", cfg.supervised_epochs)
+        logger.info("  Device:             %s", self._device)
+        logger.info("  Results dir:        %s", cfg.results_dir)
+        logger.info("=" * 65)
+
+        loop_start = time.time()
+
+        for gen_num in range(1, cfg.max_iterations + 1):
+            if self._stopped:
+                logger.info("Loop stopped by external signal.")
+                break
+
+            logger.info("")
+            logger.info("─" * 65)
+            logger.info("  GENERATION %d / %d", gen_num, cfg.max_iterations)
+            logger.info("─" * 65)
+
+            record = self._run_generation(gen_num)
+            self.generations.append(record)
+
+            # Save generation history to disk after each round
+            self._save_history()
+
+            if progress_callback:
+                progress_callback(gen_num, record)
+
+            # Check convergence
+            if self._check_convergence():
+                logger.info(
+                    "Convergence detected — win rate plateaued over "
+                    "last %d generations. Stopping.",
+                    cfg.convergence_window,
+                )
+                break
+
+        total_time = time.time() - loop_start
+
+        summary = self._build_summary(total_time)
+        self._save_summary(summary)
+
+        logger.info("")
+        logger.info("=" * 65)
+        logger.info("  Distillation Loop Complete")
+        logger.info("=" * 65)
+        logger.info("  Generations run:  %d", summary["generations_run"])
+        logger.info("  Generations passed: %d", summary["generations_passed"])
+        logger.info("  Best win rate:    %.1f%%", summary["best_win_rate"] * 100)
+        logger.info("  Converged:        %s", summary["converged"])
+        logger.info("  Total time:       %.1f s", total_time)
+        logger.info("=" * 65)
+
+        return summary
+
+    def stop(self):
+        """Signal the loop to stop after the current generation."""
+        self._stopped = True
+        logger.info("Stop signal received — will halt after current generation.")
+
+    # ------------------------------------------------------------------
+    # Single generation execution
+    # ------------------------------------------------------------------
+
+    def _run_generation(self, gen_num: int) -> GenerationRecord:
+        """Execute a single distillation generation (steps 1-6)."""
+        record = GenerationRecord(
+            generation=gen_num,
+            started_at=datetime.now(timezone.utc).isoformat(),
+            status="running",
+        )
+
+        cfg = self.config
+        gen_tag = f"gen-{gen_num:03d}"
+        gen_checkpoint_dir = os.path.join(cfg.checkpoint_dir, gen_tag)
+        os.makedirs(gen_checkpoint_dir, exist_ok=True)
+
+        try:
+            # ─── Step 1: Supervised Train ───────────────────────────
+            logger.info("  [Step 1] Supervised training on current dataset...")
+            sup_result = self._supervised_train(gen_checkpoint_dir, gen_tag)
+
+            if sup_result is None:
+                record.status = "failed"
+                record.error = "Supervised training failed — no dataset found"
+                record.completed_at = datetime.now(timezone.utc).isoformat()
+                return record
+
+            record.supervised_val_acc = sup_result["best_val_acc"]
+            record.supervised_best_epoch = sup_result["best_epoch"]
+            record.supervised_checkpoint = sup_result["checkpoint_path"]
+
+            # Set baseline accuracy on first generation
+            if self._baseline_accuracy is None:
+                self._baseline_accuracy = sup_result["best_val_acc"]
+                logger.info(
+                    "  Baseline accuracy set: %.3f (generation 1)",
+                    self._baseline_accuracy,
+                )
+
+            # ─── Step 2-3: PPO Self-Play + Export ───────────────────
+            retries = 0
+            ppo_lr = cfg.ppo_lr
+            entropy_coeff = cfg.ppo_entropy_coeff
+            gate_passed = False
+
+            while retries <= cfg.max_retries_per_generation and not gate_passed:
+                if retries > 0:
+                    logger.info(
+                        "  [Retry %d/%d] Adjusting hyperparameters: "
+                        "lr=%.2e → %.2e, entropy=%.4f → %.4f",
+                        retries, cfg.max_retries_per_generation,
+                        ppo_lr, ppo_lr * cfg.retry_lr_factor,
+                        entropy_coeff, entropy_coeff + cfg.retry_entropy_boost,
+                    )
+                    ppo_lr *= cfg.retry_lr_factor
+                    entropy_coeff += cfg.retry_entropy_boost
+
+                logger.info(
+                    "  [Step 2] PPO self-play (%d iters × %d episodes)...",
+                    cfg.ppo_iterations, cfg.ppo_episodes_per_iter,
+                )
+                ppo_result, exporter = self._ppo_self_play(
+                    supervised_checkpoint=sup_result["checkpoint_path"],
+                    gen_tag=gen_tag,
+                    gen_checkpoint_dir=gen_checkpoint_dir,
+                    learning_rate=ppo_lr,
+                    entropy_coeff=entropy_coeff,
+                )
+
+                record.ppo_win_rate = ppo_result["final_win_rate"]
+                record.ppo_best_win_rate = ppo_result["best_win_rate"]
+                record.ppo_episodes = (
+                    cfg.ppo_iterations * cfg.ppo_episodes_per_iter
+                )
+
+                logger.info(
+                    "  [Step 3] Exporting PPO decisions (win rate: %.1f%%)...",
+                    ppo_result["best_win_rate"] * 100,
+                )
+                export_path = exporter.flush()
+                record.ppo_decisions_exported = exporter.stats["exported_decisions"]
+                record.ppo_export_path = export_path or ""
+
+                # ─── Step 4: Quality Gate ───────────────────────────
+                logger.info("  [Step 4] Quality gate check...")
+                verdict = self._quality_gate_check(
+                    ppo_win_rate=ppo_result["best_win_rate"],
+                    total_episodes=record.ppo_episodes,
+                    exporter=exporter,
+                )
+
+                if verdict.accepted:
+                    gate_passed = True
+                    record.gate_accepted = True
+                    record.gate_reason = verdict.reason
+                    logger.info("  QUALITY GATE: PASSED — %s", verdict.reason)
+                else:
+                    retries += 1
+                    record.retries = retries
+                    logger.warning(
+                        "  QUALITY GATE: FAILED — %s", verdict.reason,
+                    )
+
+                    if retries > cfg.max_retries_per_generation:
+                        # ─── Step 6: Discard PPO batch ──────────────
+                        logger.warning(
+                            "  [Step 6] Max retries exceeded — "
+                            "discarding PPO batch for generation %d.",
+                            gen_num,
+                        )
+                        if export_path and os.path.exists(export_path):
+                            os.remove(export_path)
+                            logger.info(
+                                "  Deleted rejected PPO data: %s", export_path
+                            )
+                        record.gate_accepted = False
+                        record.gate_reason = (
+                            f"Failed after {retries - 1} retries: "
+                            f"{verdict.reason}"
+                        )
+
+            # ─── Step 5: Merge into dataset (if passed) ─────────────
+            if gate_passed:
+                logger.info(
+                    "  [Step 5] PPO data accepted — will be included "
+                    "in next generation's dataset build."
+                )
+                record.status = "passed"
+
+                # ─── ELO mini-tournament (Phase 6) ────────────────
+                if cfg.elo_convergence_enabled and gen_num > 1:
+                    elo = self._run_elo_mini_tournament(
+                        gen_checkpoint_dir, gen_num
+                    )
+                    if elo is not None:
+                        record.elo_rating = elo
+                        logger.info("  ELO rating: %.1f", elo)
+            else:
+                record.status = "failed"
+
+        except Exception as e:
+            logger.exception("  Generation %d failed with error: %s", gen_num, e)
+            record.status = "failed"
+            record.error = str(e)
+
+        record.completed_at = datetime.now(timezone.utc).isoformat()
+        return record
+
+    # ------------------------------------------------------------------
+    # Step 1: Supervised Training
+    # ------------------------------------------------------------------
+
+    def _supervised_train(
+        self,
+        gen_checkpoint_dir: str,
+        gen_tag: str,
+    ) -> Optional[Dict]:
+        """
+        Build dataset from all available data and train supervised model.
+
+        Returns training summary dict or None on failure.
+        """
+        try:
+            import torch
+        except ImportError:
+            raise RuntimeError("PyTorch required for distillation loop")
+
+        cfg = self.config
+
+        # Build dataset (picks up both Forge + any PPO JSONL files in results_dir)
+        from ml.data.dataset_builder import build_dataset, split_dataset, save_dataset
+
+        try:
+            dataset = build_dataset(
+                results_dir=cfg.results_dir,
+                max_samples=None,
+                source_weights={
+                    "forge": cfg.forge_weight,
+                    "ppo": cfg.ppo_weight,
+                },
+                min_reward_threshold=cfg.min_reward_threshold,
+            )
+        except RuntimeError as e:
+            logger.warning("Dataset build failed: %s", e)
+            return None
+
+        if not dataset or len(dataset.get("states", [])) == 0:
+            logger.warning("No training data available.")
+            return None
+
+        # Split
+        train_data, val_data, test_data = split_dataset(dataset)
+
+        # Save splits (overwrite each generation — latest always at standard path)
+        data_dir = cfg.models_dir
+        os.makedirs(data_dir, exist_ok=True)
+        save_dataset(train_data, os.path.join(data_dir, "dataset-train.npz"))
+        save_dataset(val_data, os.path.join(data_dir, "dataset-val.npz"))
+        save_dataset(test_data, os.path.join(data_dir, "dataset-test.npz"))
+
+        # Create model
+        from ml.training.policy_network import PolicyNetwork
+        actual_dim = train_data["states"].shape[1]
+        model = PolicyNetwork(input_dim=actual_dim)
+
+        # Train
+        from ml.training.trainer import SupervisedTrainer, get_best_device
+        device = self._device or get_best_device()
+        trainer = SupervisedTrainer(
+            model=model,
+            device=device,
+            learning_rate=cfg.supervised_lr,
+            batch_size=cfg.supervised_batch_size,
+            epochs=cfg.supervised_epochs,
+            patience=cfg.supervised_patience,
+            checkpoint_dir=gen_checkpoint_dir,
+        )
+
+        summary = trainer.train(
+            train_states=train_data["states"],
+            train_labels=train_data["labels"],
+            val_states=val_data["states"],
+            val_labels=val_data["labels"],
+        )
+
+        # Also copy best checkpoint to the standard location
+        best_src = os.path.join(gen_checkpoint_dir, "best_policy.pt")
+        best_dst = os.path.join(cfg.checkpoint_dir, "best_policy.pt")
+        if os.path.exists(best_src):
+            shutil.copy2(best_src, best_dst)
+
+        return summary
+
+    # ------------------------------------------------------------------
+    # Steps 2-3: PPO Self-Play + Decision Export
+    # ------------------------------------------------------------------
+
+    def _ppo_self_play(
+        self,
+        supervised_checkpoint: str,
+        gen_tag: str,
+        gen_checkpoint_dir: str,
+        learning_rate: float = None,
+        entropy_coeff: float = None,
+    ) -> tuple:
+        """
+        Run PPO self-play initialized from the supervised checkpoint.
+
+        Returns (ppo_summary, exporter) tuple.
+        """
+        cfg = self.config
+
+        from ml.training.ppo_trainer import PPOTrainer, PPOConfig
+        from ml.training.decision_exporter import DecisionExporter, ExporterConfig
+
+        # Set up decision exporter for this generation
+        exporter = DecisionExporter(ExporterConfig(
+            output_dir=cfg.results_dir,
+            only_wins=True,
+            model_version=gen_tag,
+        ))
+
+        ppo_config = PPOConfig(
+            iterations=cfg.ppo_iterations,
+            episodes_per_iter=cfg.ppo_episodes_per_iter,
+            ppo_epochs=4,
+            batch_size=cfg.ppo_batch_size,
+            clip_epsilon=cfg.ppo_clip_epsilon,
+            entropy_coeff=entropy_coeff or cfg.ppo_entropy_coeff,
+            learning_rate=learning_rate or cfg.ppo_lr,
+            lr_schedule="cosine",
+            min_lr=1e-5,
+            opponent=cfg.opponent,
+            playstyle=cfg.playstyle,
+            checkpoint_dir=gen_checkpoint_dir,
+            save_every=max(1, cfg.ppo_iterations // 5),
+            eval_every=max(1, cfg.ppo_iterations // 10),
+            eval_episodes=cfg.ppo_eval_episodes,
+            load_supervised=supervised_checkpoint,
+        )
+
+        ppo_trainer = PPOTrainer(ppo_config)
+
+        # Monkey-patch collect_rollouts to include exporter
+        # The exporter is already wired into self_play.collect_rollouts
+        # via the exporter parameter, so we wrap the train loop.
+        original_collect = None
+
+        from ml.training import self_play as sp_module
+
+        _original_collect_rollouts = sp_module.collect_rollouts
+
+        def _instrumented_collect_rollouts(
+            agent_model, opponent_policy, buffer,
+            num_episodes=64, playstyle="midrange",
+            reward_config=None, **kwargs
+        ):
+            return _original_collect_rollouts(
+                agent_model=agent_model,
+                opponent_policy=opponent_policy,
+                buffer=buffer,
+                num_episodes=num_episodes,
+                playstyle=playstyle,
+                reward_config=reward_config,
+                exporter=exporter,
+            )
+
+        # Temporarily replace module-level function
+        sp_module.collect_rollouts = _instrumented_collect_rollouts
+        try:
+            summary = ppo_trainer.train()
+        finally:
+            # Restore original
+            sp_module.collect_rollouts = _original_collect_rollouts
+
+        return summary, exporter
+
+    # ------------------------------------------------------------------
+    # Step 4: Quality Gate
+    # ------------------------------------------------------------------
+
+    def _quality_gate_check(
+        self,
+        ppo_win_rate: float,
+        total_episodes: int,
+        exporter: DecisionExporter,
+    ) -> GateVerdict:
+        """Run quality gate checks on the PPO output."""
+        # Win rate gate
+        win_verdict = self.quality_gate.check_win_rate(
+            ppo_win_rate=ppo_win_rate,
+            total_episodes=total_episodes,
+        )
+        if not win_verdict.accepted:
+            return win_verdict
+
+        # If we have baseline accuracy and this isn't the first generation,
+        # we could run a post-merge accuracy check here. For now, the win
+        # rate gate is the primary gatekeeper during the loop. The accuracy
+        # gate will be checked on the next generation's supervised training
+        # by comparing against self._baseline_accuracy.
+        return GateVerdict(
+            accepted=True,
+            reason=(
+                f"Win rate gate passed ({ppo_win_rate:.1%} >= "
+                f"{self.config.min_ppo_win_rate:.1%}). "
+                f"PPO data accepted for merge."
+            ),
+            metrics={
+                "ppo_win_rate": ppo_win_rate,
+                "total_episodes": total_episodes,
+                "exported_decisions": exporter.stats["exported_decisions"],
+            },
+        )
+
+    # ------------------------------------------------------------------
+    # ELO mini-tournament (Phase 6)
+    # ------------------------------------------------------------------
+
+    def _run_elo_mini_tournament(
+        self, gen_checkpoint_dir: str, gen_num: int
+    ) -> Optional[float]:
+        """
+        Run a small ELO tournament between current gen, previous gen,
+        and heuristic baseline. Returns the current gen's ELO rating.
+        """
+        cfg = self.config
+        try:
+            from ml.eval.elo_tracker import (
+                run_elo_tournament, EloHistory, HeuristicPolicy, LearnedPolicy,
+            )
+
+            policies = {"heuristic": HeuristicPolicy()}
+
+            # Current generation checkpoint
+            curr_path = os.path.join(gen_checkpoint_dir, "best_policy.pt")
+            curr_name = f"gen-{gen_num:03d}"
+            if os.path.exists(curr_path):
+                policies[curr_name] = LearnedPolicy(curr_path)
+            else:
+                logger.warning("  ELO: current gen checkpoint not found: %s", curr_path)
+                return None
+
+            # Previous generation checkpoint
+            if gen_num > 1:
+                prev_tag = f"gen-{gen_num - 1:03d}"
+                prev_dir = os.path.join(cfg.checkpoint_dir, prev_tag)
+                prev_path = os.path.join(prev_dir, "best_policy.pt")
+                if os.path.exists(prev_path):
+                    policies[prev_tag] = LearnedPolicy(prev_path)
+
+            logger.info(
+                "  [ELO] Running mini-tournament: %s (%d episodes/matchup)",
+                list(policies.keys()), cfg.elo_tournament_episodes,
+            )
+
+            result = run_elo_tournament(
+                policies=policies,
+                episodes_per_matchup=cfg.elo_tournament_episodes,
+                playstyle=cfg.playstyle,
+            )
+
+            # Save to ELO history
+            history_path = os.path.join(
+                os.path.dirname(cfg.history_dir), "elo_history.json"
+            ) if cfg.history_dir else "data/elo_history.json"
+            history = EloHistory(path=history_path)
+            history.append(gen_num, result.ratings)
+
+            return result.ratings.get(curr_name, 0.0)
+
+        except Exception as e:
+            logger.warning("  ELO mini-tournament failed: %s", e)
+            return None
+
+    # ------------------------------------------------------------------
+    # Convergence detection
+    # ------------------------------------------------------------------
+
+    def _check_convergence(self) -> bool:
+        """
+        Check if win rate has plateaued over recent generations.
+        Also checks ELO delta when elo_convergence_enabled is True.
+
+        Returns True if the loop should stop.
+        """
+        cfg = self.config
+        passed = [g for g in self.generations if g.status == "passed"]
+
+        if len(passed) < cfg.convergence_window:
+            return False
+
+        recent = passed[-cfg.convergence_window:]
+        win_rates = [g.ppo_best_win_rate for g in recent]
+
+        # Check if max improvement across the window is below threshold
+        improvement = max(win_rates) - min(win_rates)
+
+        logger.info(
+            "  Convergence check: last %d win rates = %s, "
+            "spread = %.4f (threshold = %.4f)",
+            cfg.convergence_window,
+            [f"{wr:.3f}" for wr in win_rates],
+            improvement,
+            cfg.convergence_threshold,
+        )
+
+        win_rate_converged = improvement < cfg.convergence_threshold
+
+        # ELO convergence check (Phase 6)
+        if cfg.elo_convergence_enabled and len(passed) >= 2:
+            elo_ratings = [g.elo_rating for g in passed[-2:] if g.elo_rating > 0]
+            if len(elo_ratings) >= 2:
+                elo_delta = elo_ratings[-1] - elo_ratings[-2]
+                logger.info(
+                    "  ELO convergence check: delta = %.1f (threshold = %.1f)",
+                    elo_delta, cfg.elo_convergence_threshold,
+                )
+                if elo_delta < cfg.elo_convergence_threshold:
+                    logger.info("  ELO delta below threshold — converged.")
+                    return True
+
+        return win_rate_converged
+
+    # ------------------------------------------------------------------
+    # Device detection
+    # ------------------------------------------------------------------
+
+    def _detect_device(self) -> str:
+        """Auto-detect best compute device."""
+        try:
+            import torch
+            if torch.cuda.is_available():
+                return "cuda"
+            if hasattr(torch.backends, "mps") and torch.backends.mps.is_available():
+                return "mps"
+        except ImportError:
+            pass
+        return "cpu"
+
+    # ------------------------------------------------------------------
+    # History & summary persistence
+    # ------------------------------------------------------------------
+
+    def _save_history(self):
+        """Save generation history to JSON."""
+        path = os.path.join(self.config.history_dir, "generations.json")
+        history = [g.to_dict() for g in self.generations]
+        with open(path, "w") as f:
+            json.dump(history, f, indent=2)
+        logger.info("  Generation history saved: %s", path)
+
+    def _build_summary(self, total_time: float) -> Dict:
+        """Build final summary dict."""
+        passed = [g for g in self.generations if g.status == "passed"]
+        failed = [g for g in self.generations if g.status == "failed"]
+
+        best_wr = max(
+            (g.ppo_best_win_rate for g in self.generations), default=0.0
+        )
+
+        return {
+            "generations_run": len(self.generations),
+            "generations_passed": len(passed),
+            "generations_failed": len(failed),
+            "best_win_rate": best_wr,
+            "converged": self._check_convergence() if len(passed) >= self.config.convergence_window else False,
+            "total_time_s": round(total_time, 1),
+            "device": self._device,
+            "config": {
+                "max_iterations": self.config.max_iterations,
+                "convergence_window": self.config.convergence_window,
+                "convergence_threshold": self.config.convergence_threshold,
+                "ppo_iterations": self.config.ppo_iterations,
+                "supervised_epochs": self.config.supervised_epochs,
+            },
+            "generations": [g.to_dict() for g in self.generations],
+        }
+
+    def _save_summary(self, summary: Dict):
+        """Save final summary to JSON."""
+        path = os.path.join(self.config.history_dir, "summary.json")
+        with open(path, "w") as f:
+            json.dump(summary, f, indent=2, default=str)
+        logger.info("  Summary saved: %s", path)
+
+
+# ═══════════════════════════════════════════════════════════
+# CLI Entry Point
+# ═══════════════════════════════════════════════════════════
+
+def main():
+    """CLI entry point for the distillation loop."""
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        description="Commander AI Lab — Closed-Loop Distillation"
+    )
+
+    # Loop control
+    parser.add_argument(
+        "--max-iterations", type=int, default=10,
+        help="Maximum number of distillation generations (default: 10)",
+    )
+    parser.add_argument(
+        "--convergence-window", type=int, default=3,
+        help="Number of generations to check for win-rate plateau (default: 3)",
+    )
+    parser.add_argument(
+        "--convergence-threshold", type=float, default=0.01,
+        help="Min win-rate spread to not be considered converged (default: 0.01)",
+    )
+
+    # Paths
+    parser.add_argument(
+        "--results-dir", default="data/results",
+        help="Directory containing JSONL decision files (default: data/results)",
+    )
+    parser.add_argument(
+        "--models-dir", default="ml/models",
+        help="Directory for dataset NPZ files (default: ml/models)",
+    )
+    parser.add_argument(
+        "--checkpoint-dir", default="ml/models/checkpoints",
+        help="Directory for model checkpoints (default: ml/models/checkpoints)",
+    )
+
+    # Supervised training
+    parser.add_argument("--sup-epochs", type=int, default=30)
+    parser.add_argument("--sup-lr", type=float, default=1e-3)
+    parser.add_argument("--sup-batch-size", type=int, default=64)
+    parser.add_argument("--sup-patience", type=int, default=5)
+
+    # PPO self-play
+    parser.add_argument("--ppo-iterations", type=int, default=50)
+    parser.add_argument("--ppo-episodes", type=int, default=64)
+    parser.add_argument("--ppo-lr", type=float, default=3e-4)
+    parser.add_argument("--ppo-batch-size", type=int, default=256)
+    parser.add_argument("--ppo-eval-episodes", type=int, default=100)
+    parser.add_argument(
+        "--opponent", default="heuristic",
+        choices=["heuristic", "random", "self"],
+    )
+    parser.add_argument("--playstyle", default="midrange")
+
+    # Dataset
+    parser.add_argument("--forge-weight", type=float, default=1.0)
+    parser.add_argument("--ppo-weight", type=float, default=0.5)
+    parser.add_argument("--min-reward", type=float, default=0.0)
+
+    # Quality gate
+    parser.add_argument("--min-win-rate", type=float, default=0.30)
+    parser.add_argument("--min-forge-accuracy", type=float, default=0.35)
+    parser.add_argument("--max-accuracy-drop", type=float, default=0.03)
+
+    args = parser.parse_args()
+
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(message)s",
+    )
+
+    config = DistillationConfig(
+        max_iterations=args.max_iterations,
+        convergence_window=args.convergence_window,
+        convergence_threshold=args.convergence_threshold,
+        results_dir=args.results_dir,
+        models_dir=args.models_dir,
+        checkpoint_dir=args.checkpoint_dir,
+        supervised_epochs=args.sup_epochs,
+        supervised_lr=args.sup_lr,
+        supervised_batch_size=args.sup_batch_size,
+        supervised_patience=args.sup_patience,
+        ppo_iterations=args.ppo_iterations,
+        ppo_episodes_per_iter=args.ppo_episodes,
+        ppo_batch_size=args.ppo_batch_size,
+        ppo_lr=args.ppo_lr,
+        ppo_eval_episodes=args.ppo_eval_episodes,
+        opponent=args.opponent,
+        playstyle=args.playstyle,
+        forge_weight=args.forge_weight,
+        ppo_weight=args.ppo_weight,
+        min_reward_threshold=args.min_reward,
+        min_ppo_win_rate=args.min_win_rate,
+        min_forge_accuracy=args.min_forge_accuracy,
+        max_accuracy_drop=args.max_accuracy_drop,
+    )
+
+    loop = DistillationLoop(config)
+    summary = loop.run()
+    print(json.dumps(summary, indent=2, default=str))
+
+
+if __name__ == "__main__":
+    main()

ml/training/self_play.py

@@ -38,6 +38,7 @@ from ml.config.scope import (
     Playstyle, PLAYSTYLE_TO_IDX, STATE_DIMS, GamePhase, PHASE_TO_IDX,
 )
 from ml.training.reward import compute_intermediate_reward, compute_terminal_reward, RewardConfig
+from ml.training.decision_exporter import DecisionExporter
 
 logger = logging.getLogger("ml.self_play")
 
@@ -384,6 +385,7 @@ def run_self_play_episode(
     playstyle: str = "midrange",
     max_steps: int = 50,
     reward_config: RewardConfig = None,
+    exporter: DecisionExporter = None,
 ) -> List[dict]:
     """Run a single self-play episode and return the trajectory.
 
@@ -395,6 +397,7 @@ def run_self_play_episode(
         playstyle: Playstyle for state encoding
         max_steps: Maximum decision steps per episode
         reward_config: Reward configuration
+        exporter: Optional DecisionExporter to record steps for distillation
 
     Returns:
         List of step dicts: [{state, action, reward, value, log_prob, done}, ...]
@@ -458,6 +461,12 @@ def run_self_play_episode(
                 "log_prob": log_prob_scalar,
                 "done": True,
             })
+            if exporter is not None:
+                exporter.record_step(
+                    game_state_snapshot=prev_snapshot,
+                    action_idx=action_idx,
+                    reward=reward,
+                )
             break
 
         # Opponent's turn
@@ -483,6 +492,12 @@ def run_self_play_episode(
                 "log_prob": log_prob_scalar,
                 "done": True,
             })
+            if exporter is not None:
+                exporter.record_step(
+                    game_state_snapshot=prev_snapshot,
+                    action_idx=action_idx,
+                    reward=reward,
+                )
             break
 
         # Intermediate reward
@@ -499,6 +514,12 @@ def run_self_play_episode(
             "log_prob": log_prob_scalar,
             "done": False,
         })
+        if exporter is not None:
+            exporter.record_step(
+                game_state_snapshot=prev_snapshot,
+                action_idx=action_idx,
+                reward=reward,
+            )
 
         # Advance turn
         state = advance_turn(state)
@@ -513,6 +534,7 @@ def collect_rollouts(
     num_episodes: int = 64,
     playstyle: str = "midrange",
     reward_config: RewardConfig = None,
+    exporter: DecisionExporter = None,
 ) -> dict:
     """Collect multiple self-play episodes into a rollout buffer.
 
@@ -523,6 +545,7 @@ def collect_rollouts(
         num_episodes: Number of episodes to collect
         playstyle: Agent playstyle
         reward_config: Reward configuration
+        exporter: Optional DecisionExporter to record decisions for distillation
 
     Returns:
         Collection statistics dict
@@ -538,12 +561,16 @@ def collect_rollouts(
         # Alternate agent seat for balanced training
         agent_seat = ep % 2
 
+        if exporter is not None:
+            exporter.begin_episode(agent_seat=agent_seat, playstyle=playstyle)
+
         trajectory = run_self_play_episode(
             agent_model=agent_model,
             opponent_policy=opponent_policy,
             agent_seat=agent_seat,
             playstyle=playstyle,
             reward_config=reward_config,
+            exporter=exporter,
         )
 
         for step in trajectory:
@@ -569,6 +596,11 @@ def collect_rollouts(
             else:
                 total_draws += 1
 
+        if exporter is not None:
+            won = trajectory and trajectory[-1]["done"] and trajectory[-1]["reward"] > 0.5
+            ep_return = sum(s["reward"] for s in trajectory)
+            exporter.end_episode(won=won, episode_return=ep_return)
+
     # Compute GAE after collection
     buffer.compute_returns_and_advantages(last_value=0.0)