- Each environment now runs its own PB + LiveKit + Voice Token + frontend
- UAT LiveKit: 7890, Voice Token: 7893 (separate from Dev 7880/7883)
- Remove docker-compose.backend.yml, merge into dev compose
- Delete duplicate bulletin migration files that caused PB crash on startup
- Update CLAUDE.md, nginx configs, and .env files accordingly
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>