- Add IndexedDB service with schema, indexes, and player stats
- Migrate GameService to async IndexedDB and auto-migrate from localStorage
- Update hooks and App handlers to async; add error handling and UX feedback
- Convert remaining JSX components to TSX
- Add test utility for IndexedDB and migration checks
- Extend game types with sync fields for future online sync
- Change endlos raceTo from 0 to Infinity to prevent automatic completion
- Update NewGame component to handle Infinity values properly
- Add Infinity checks in game completion and winner logic
- Fix game progress calculation for endless games
Fixes issue where selecting 'endlos' mode would end the match
immediately when any player scored their first point.
