Refactor the voice recording and playback systems to improve efficiency, reduce latency, and enhance Docker build performance.
- **Infrastructure**: Optimize Dockerfiles using build mounts for pnpm cache and reorder layers for better caching of dependencies and build tools.
- **Backend/Gateway**:
- Refactor `broadcast` module to use a generic event-based system instead of hardcoded functions.
- Simplify voice recording logic by merging metadata and segment management into a unified `segment.ts`.
- Optimize audio downsampling in `streamSetup.ts` using `Int16Array` views for better performance.
- Implement `withFallback` utility for more robust Redis/Database command execution.
- **Frontend**:
- Optimize audio playback visualization using pre-computed level shapes and efficient RMS calculation.
- Reduce latency in voice commands by prioritizing WebSocket communication over HTTP.
- Improve base64 encoding efficiency in audio transmission.
- **General**:
- Add default value for `ADMIN_PASSWORD` in shared config.
- Fix Docker healthcheck to use `127.0.0.1` instead of `localhost`.
- Rollback frontend latency changes (keep processor.connect(destination))
- Rollback FFmpeg aggressive optimizations (keep 20ms frames)
- Transmit was working before latency optimization; restore stable state
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Send voice:transmit:start/stop via POST /api/voice/command
instead of WebSocket. The WebSocket approach failed because:
1. Separate WS connections weren't handled by backend
2. HTTP fallback wasn't working correctly
Now uses HTTP API directly which is more reliable.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Add POST /api/voice/command endpoint in backend
- Frontend transmit now sends commands via dedicated WebSocket connection
with HTTP API fallback if WebSocket fails
- Fixes issue where transmit start command was never received by discord-gateway
Previously commands were sent via the existing dashboard WebSocket,
which may not be connected when the Transmit button is pressed.
Now each command opens a fresh WebSocket connection with HTTP fallback.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Extract services into services/{frontend,backend,discord-gateway}
- Create packages/shared/ for shared logger, errors, utils, types
- Setup Modular MVC pattern in backend (controller→service→repository)
- Setup event-driven architecture in discord-gateway with Redis pub/sub
- Move Docker files to infra/docker/ with per-service Dockerfiles
- Update docker-compose.yml to use Traefik-only routing (no port exposes)
- Update GitHub Actions deploy workflow for multi-service matrix build
- Fix all import paths and resolve type errors across all services
- All 3 services pass tsc --noEmit clean
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
