🌙 Add overnight automation script

- Autonomous generation of remaining 384 assets
- 60s rate limiting between assets
- Auto-commits every 20 assets
- Estimated 6.4 hours runtime
- Full documentation in OVERNIGHT_GENERATION.md

Ready to run: nohup python3 scripts/generate_overnight.py > overnight_production.log 2>&1 &

OVERNIGHT_GENERATION.md

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+# 🌙 OVERNIGHT ASSET GENERATION
+
+## Quick Start
+
+```bash
+# Run in background overnight
+cd /Users/davidkotnik/repos/novafarma
+nohup python3 scripts/generate_overnight.py > overnight_production.log 2>&1 &
+
+# Check progress
+tail -f overnight_production.log
+
+# Check how many done
+find assets/images -name "*.png" | wc -l
+```
+
+## What It Does
+
+- ✅ Generates ALL remaining assets from registry
+- ✅ Rate limited: 60s between each asset
+- ✅ Auto-commits every 20 assets
+- ✅ Runs autonomously in background
+- ✅ Logs everything to `overnight_production.log`
+
+## Details
+
+- **Total assets**: 422
+- **Already done**: ~38
+- **Remaining**: ~384
+- **Estimated time**: ~6.4 hours (384 × 60s)
+
+## Style
+
+All assets use approved **Dark Hand-Drawn 2D Stylized Indie** style:
+- Bold thick black outlines
+- Exaggerated proportions
+- Green chroma key background
+- Mature 90s cartoon aesthetic
+
+## Monitor Progress
+
+```bash
+# Watch live log
+tail -f overnight_production.log
+
+# Count generated files
+find assets/images -name "*.png" | wc -l
+
+# Check git commits
+git log --oneline | head -10
+```
+
+## Stop If Needed
+
+```bash
+# Find process
+ps aux | grep generate_overnight
+
+# Kill it
+kill <PID>
+```
+
+---
+
+**Let it run overnight and wake up to 422 complete game assets!** 🌙✨

scripts/generate_overnight.py

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+#!/usr/bin/env python3
+"""
+🌙 OVERNIGHT PRODUCTION - Automated Asset Generation
+Generates remaining 384 assets slowly with rate limiting
+Runs autonomously in background
+"""
+import time
+import sys
+from pathlib import Path
+
+# Add scripts to path
+sys.path.insert(0, '/Users/davidkotnik/repos/novafarma/scripts')
+from generate_v7_final import generate_registry, generate_image_google, setup_google_ai, OUTPUT_DIR
+
+# Configuration
+BATCH_SIZE = 1  # Generate 1 at a time to avoid rate limits
+WAIT_BETWEEN = 60  # 60 seconds between each asset
+COMMIT_EVERY = 20  # Git commit every 20 assets
+
+def main():
+    print("=" * 70)
+    print("🌙 OVERNIGHT ASSET PRODUCTION")
+    print("=" * 70)
+    
+    # Setup API  
+    if not setup_google_ai():
+        print("❌ API key not configured")
+        return
+    
+    print("✅ API configured\n")
+    
+    # Load registry
+    print("📋 Loading asset registry...")
+    ASSETS = generate_registry()
+    print(f"📊 Total registry: {len(ASSETS)} assets\n")
+    
+    # Filter only missing assets
+    missing = [a for a in ASSETS if not (OUTPUT_DIR / a["cat"] / a["file"]).exists()]
+    print(f"🎯 Missing: {len(missing)} assets")
+    print(f"✅ Existing: {len(ASSETS) - len(missing)} assets\n")
+    
+    if not missing:
+        print("🎉 All assets already generated!")
+        return
+    
+    print(f"⏰ Estimated time: {len(missing) * WAIT_BETWEEN // 3600} hours\n")
+    print("🚀 STARTING OVERNIGHT PRODUCTION...\n")
+    
+    success, fail = 0, 0
+    commit_counter = 0
+    
+    for i, asset in enumerate(missing, 1):
+        path = OUTPUT_DIR / asset["cat"] / asset["file"]
+        
+        print(f"[{i}/{len(missing)}] 🎨 {asset['file']}")
+        
+        try:
+            if generate_image_google(asset["prompt"], path):
+                print(f"         ✅ SAVED to {asset['cat']}/")
+                success += 1
+                commit_counter += 1
+                
+                # Auto-commit every N assets
+                if commit_counter >= COMMIT_EVERY:
+                    import subprocess
+                    subprocess.run([
+                        "git", "-C", "/Users/davidkotnik/repos/novafarma",
+                        "add", "assets/images/"
+                    ])
+                    subprocess.run([
+                        "git", "-C", "/Users/davidkotnik/repos/novafarma",
+                        "commit", "-m",
+                        f"🌙 Overnight batch: {success} assets ({success}/{len(missing)})"
+                    ])
+                    print(f"\n💾 Git commit: {success} assets saved\n")
+                    commit_counter = 0
+            else:
+                print(f"         ❌ FAILED")
+                fail += 1
+        except Exception as e:
+            print(f"         ⚠️  ERROR: {e}")
+            fail += 1
+        
+        # Progress report every 10
+        if i % 10 == 0:
+            print(f"\n📊 Progress: {i}/{len(missing)} | ✅{success} ❌{fail}\n")
+        
+        # Rate limiting pause
+        if i < len(missing):  # Don't wait after last one
+            print(f"         ⏳ Waiting {WAIT_BETWEEN}s...")
+            time.sleep(WAIT_BETWEEN)
+    
+    # Final commit
+    if commit_counter > 0:
+        import subprocess
+        subprocess.run([
+            "git", "-C", "/Users/davidkotnik/repos/novafarma",
+            "add", "assets/images/"
+        ])
+        subprocess.run([
+            "git", "-C", "/Users/davidkotnik/repos/novafarma",
+            "commit", "-m",
+            f"🎉 Overnight complete: {success} total assets"
+        ])
+    
+    print("\n" + "=" * 70)
+    print("🎉 OVERNIGHT PRODUCTION COMPLETE!")
+    print(f"✅ Success: {success} | ❌ Fail: {fail}")
+    print("=" * 70)
+
+if __name__ == "__main__":
+    main()