fix: point all deck lookups to precon-decks directory

- start-lab.bat: Set FORGE_DECKS_DIR to D:\ForgeCommander\commander-ai-lab\precon-decks
- BatchRunner.java: resolveForgeDecksPath() now checks PRECON_DECKS_DIR env var
  first, then falls back to the hardcoded precon-decks path, before trying
  %APPDATA%\Forge\decks\commander. Also pass full absolute path to Forge -d flag.
- .env.example: document PRECON_DECKS_DIR variable

.env.example

@@ -1,36 +1,13 @@
-# Commander AI Lab - Environment Variables
-# Copy this file to .env and fill in your API keys.
-# .env is gitignored and will NOT be committed.
+# Commander AI Lab — Environment Variables
+# Copy this file to .env and fill in your values.
+# start-lab.bat will auto-load .env if it exists.
 
-# Ximilar API Key (card scanner / visual AI recognition)
-# Get yours at: https://app.ximilar.com/
-XIMILAR_API_KEY=your-ximilar-api-key-here
-
-# Anthropic API Key (AI deck generation & coaching with Claude Opus)
-# Get yours at: https://console.anthropic.com/settings/keys
+# ── API Keys ──────────────────────────────────────────────────
 ANTHROPIC_API_KEY=your-anthropic-api-key-here
-# Anthropic model for deck generation and coaching (Claude Opus recommended)
-ANTHROPIC_MODEL=claude-opus-4-20250514
-# Coach chat provider: "local" (Ollama) or "anthropic" (Claude API)
-COACH_PROVIDER=anthropic
+XIMILAR_API_KEY=your-ximilar-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
+# ── Deck Paths ────────────────────────────────────────────────
+# Directory containing your precon .dck files.
+# Forge reads deck files directly from this folder.
+PRECON_DECKS_DIR=D:\ForgeCommander\commander-ai-lab\precon-decks
+FORGE_DECKS_DIR=D:\ForgeCommander\commander-ai-lab\precon-decks

start-lab.bat

@@ -14,7 +14,10 @@ REM ═════════════════════════
 REM ── Your Forge paths (EDIT THESE) ──────────────────────────
 set FORGE_JAR=D:\ForgeCommander\forge-repo\forge-gui-desktop\target\forge-gui-desktop-2.0.12-SNAPSHOT-jar-with-dependencies.jar
 set FORGE_DIR=D:\ForgeCommander\forge-repo
-set FORGE_DECKS_DIR=%APPDATA%\Forge\decks\commander
+REM Precon-decks folder — Forge reads .dck files directly from here.
+REM This is also used as the source for precon install endpoints.
+set FORGE_DECKS_DIR=D:\ForgeCommander\commander-ai-lab\precon-decks
+set PRECON_DECKS_DIR=D:\ForgeCommander\commander-ai-lab\precon-decks
 REM ── Lab JAR (auto-detected from target/) ─────────────────────
 set LAB_PORT=8080
 
@@ -30,6 +33,8 @@ if not defined XIMILAR_API_KEY (
         for /f "usebackq tokens=1,* delims==" %%A in ("%~dp0.env") do (
             if "%%A"=="XIMILAR_API_KEY" set XIMILAR_API_KEY=%%B
             if "%%A"=="ANTHROPIC_API_KEY" set ANTHROPIC_API_KEY=%%B
+            if "%%A"=="PRECON_DECKS_DIR" set PRECON_DECKS_DIR=%%B
+            if "%%A"=="FORGE_DECKS_DIR" set FORGE_DECKS_DIR=%%B
         )
     )
 )
@@ -42,6 +47,7 @@ echo.
 echo Forge JAR:   %FORGE_JAR%
 echo Forge Dir:   %FORGE_DIR%
 echo Decks Dir:   %FORGE_DECKS_DIR%
+echo Precon Dir:  %PRECON_DECKS_DIR%
 echo Port:        %LAB_PORT%
 echo Ximilar:     Configured
 if defined ANTHROPIC_API_KEY (
@@ -102,6 +108,7 @@ if defined ANTHROPIC_API_KEY (
         --forge-jar "%FORGE_JAR%" ^
         --forge-dir "%FORGE_DIR%" ^
         --forge-decks-dir "%FORGE_DECKS_DIR%" ^
+        --precon-dir "%PRECON_DECKS_DIR%" ^
         --port %LAB_PORT% ^
         --ximilar-key "%XIMILAR_API_KEY%" ^
         --anthropic-key "%ANTHROPIC_API_KEY%"
@@ -110,6 +117,7 @@ if defined ANTHROPIC_API_KEY (
         --forge-jar "%FORGE_JAR%" ^
         --forge-dir "%FORGE_DIR%" ^
         --forge-decks-dir "%FORGE_DECKS_DIR%" ^
+        --precon-dir "%PRECON_DECKS_DIR%" ^
         --port %LAB_PORT% ^
         --ximilar-key "%XIMILAR_API_KEY%"
 )