- Database schema with 5 new tables:
- sexy_recording_plays: Track recording playback
- sexy_user_points: Individual point actions
- sexy_achievements: Predefined achievement definitions
- sexy_user_achievements: User progress tracking
- sexy_user_stats: Cached statistics for leaderboards
- Seeded 17 achievements across 4 categories
- Backend gamification helper functions with time-weighted scoring
- Three new API endpoints:
- GET /sexy/gamification/leaderboard
- GET /sexy/gamification/user/:id
- GET /sexy/gamification/achievements
- Recording play endpoints with automatic point awards
- Time-decay formula (λ=0.005) for balanced rankings
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
