- Use next/dynamic with ssr:false for Phaser game page
- Change tsconfig target to ES2022 for BigInt support
- Replace Phaser default imports with namespace imports
- Fix ArenaScene button logic using phase state machine
- Remove invalid add:false from Phaser graphics config
- Fix MatchState commitDeadline type
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>