- Go Fish: Add support for 2-card and 4-card match variants.
- Update `GoFishGame` and `GoFishLogic` to use a configurable `matchSize` (default 4).
- Add UI toggle in `OpponentSelectScene` to select match variant.
- Update labels and logic to reflect 'Books' (4-card) vs 'Pairs' (2-card).
- Nerts: Improve AI and UI responsiveness.
- Add 'Last Move' timer panel with Shuffle (60s) and Resign (90s) buttons.
- Implement foundation cooldowns to prevent rapid-fire AI moves.
- Add dynamic layout for foundations and opponent panels based on player count.
- Show opponent Nerts, stock, and waste cards in opponent panels.
- Add `reshuffleAllStocks` utility in `NertsLogic`.