Implement a fully playable Gin Rummy game with Phaser-based UI,
pure logic engine, and heuristic AI (skill levels 1-5).
Features:
- Complete Gin Rummy rules: draw, discard, knock, gin, layoff, scoring
- Meld detection with optimal deadwood minimization
- 2-4 player support with AI opponents
- Drag-to-reorder hand, visual meld highlights, turn indicators
- Round and game-over overlays with score tracking
- Headless verification script with unit tests and self-play simulation
Files added:
- public/src/games/ginrummy/GinRummyData.js (card helpers, layout, constants)
- public/src/games/ginrummy/GinRummyLogic.js (deterministic game engine)
- public/src/games/ginrummy/GinRummyAI.js (AI decision making)
- public/src/games/ginrummy/GinRummyGame.js (Phaser scene)
- server/scripts/verifyGinRummy.js (headless test harness)
Also updates game-icons/opponents assets and registers the game
in the server registry and game room scene dispatcher.