813d18e133
- Add src/game/scoring.ts with computeRunningTotals and isGameOver - Build ScoreSheet grid: player columns, per-round scores, running totals after round 2+ - Small red "New Game" button in header top-right with full-screen confirmation overlay - Extend PageFrame with headerAction and overlay props - Move press animation/shadow from .pressable class to global button selector Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>