v27.1: Fix unused import errors breaking tsc -b strict build

Removed unused imports in DecksPage, TrainingPage, and decks.ts
that caused noUnusedLocals/noUnusedParameters errors during
the React build step in the installer.

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

@@ -1,5 +1,5 @@
 import { get, post, put, del, patch } from './client'
-import type { Deck, DeckCard, DeckAnalysis, DeckRecommendation, EdhRecsResponse, CollectionRecsResponse, PplxStatus } from '../types'
+import type { Deck, DeckCard, DeckAnalysis, EdhRecsResponse, CollectionRecsResponse, PplxStatus } from '../types'
 
 export async function listDecks() {
   return get<Deck[]>('/api/decks')

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

@@ -2,15 +2,15 @@ import { useState, useEffect } from 'react'
 import {
   Plus, Trash2, Download, ChevronRight,
   BarChart3, Lightbulb, Layers, X, Library,
-  Globe, CheckCircle, XCircle, ShoppingCart,
+  Globe, XCircle, ShoppingCart,
   ChevronDown, ChevronUp, Sparkles
 } from 'lucide-react'
-import { Spinner, EmptyState, ManaSymbols, CardImage, ColorDots } from '../components/common'
+import { Spinner, EmptyState, ManaSymbols, ColorDots } from '../components/common'
 import { decksApi } from '../api'
 import type {
-  Deck, DeckCard, DeckAnalysis, DeckRecommendation,
+  Deck, DeckCard, DeckAnalysis,
   EdhRecCard, EdhRecsResponse,
-  CollectionRecCard, CollectionRecsResponse
+  CollectionRecsResponse
 } from '../types'
 import { BarChart, Bar, XAxis, YAxis, Tooltip, ResponsiveContainer, Cell } from 'recharts'
 

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

@@ -1,15 +1,15 @@
 import { useState, useEffect, useCallback } from 'react'
 import {
-  Brain, Play, Square, RotateCw, Database, Trophy, AlertCircle,
+  Brain, Play, RotateCw, Database, Trophy, AlertCircle,
   Activity, Zap, Swords, FileText, Cpu, CheckCircle,
-  ChevronDown, ChevronUp, Download, HardDrive, Layers, Settings
+  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, TournamentResults, MLModelInfo
+  TournamentStatus, MLModelInfo
 } from '../types'
 
 // ── Progress Bar ──────────────────────────────────────────────
@@ -111,7 +111,7 @@ export function TrainingPage() {
   const [ppoClipEps, setPpoClipEps] = useState(0.2)
   const [ppoEntropy, setPpoEntropy] = useState(0.01)
   const [ppoOpponent, setPpoOpponent] = useState('heuristic')
-  const [ppoPlaystyle, setPpoPlaystyle] = useState('midrange')
+  const [ppoPlaystyle, _setPpoPlaystyle] = useState('midrange') // eslint-disable-line
 
   // Tournament config
   const [tournEpisodes, setTournEpisodes] = useState(50)
@@ -269,7 +269,6 @@ export function TrainingPage() {
 
   const trainDataset = dataStatus?.datasets?.['train']
   const hasDecisions = (mlStatus?.total_decisions ?? 0) > 0
-  const hasDataset = !!trainDataset
   const hasModel = modelInfo?.loaded === true
 
   return (