- Add `main-menu.png` background image that scales to fit the screen
- Replace static text titles with animated `logo-title` and `logo-people` images
- Add sine-wave tweens for logo scale and rotation effects
- Comment out the previous text-based game list (preserved for reference)
- Introduce `src/audio.js` module for centralized music playback and cleanup
- Add background music tracks for all four games and the main menu
- Refactor game config files to support multiple difficulty levels via `levels` object
- Update game scenes to load level-specific configurations and track progression
- Add win conditions based on level-specific objectives (e.g., bugs to pass, waves cleared)
- Update HUDs to display current progress toward level completion
Brian Fertig