Implements a hint system that plays audio clips when specific game events occur:
- Ship status changes (fuel/hull/ammo thresholds)
- Asteroid destruction counts
- Ship collisions
Hints are stored in database with configurable play modes (once/always).
Also lowers background music volume from 0.5 to 0.2.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add mission_brief_audio field to CloudLevelEntry interface
- Update missionBrief.ts to use AudioEngineV2.createSoundAsync()
instead of legacy Sound class (fixes audio not playing)
- Pass audioEngine to MissionBrief.initialize() from Level1
- Add welcome_rookie.mp3 audio file
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
