Production-ready Flutter starter kit for building smile detection applications. Works on Android & iOS. Flutter 3.0+ required. Includes: ✅ ML Kit real-time smile detection ✅ Supabase backend integration ✅ Camera integration optimized for Android/iOS ✅ Example game screen ready to customize ✅ Complete documentation + setup guides ✅ Working game loop (detect smiles → trigger game over → log results) Includes full source code, documentation, Android setup guide, and quick-start tutorial.