- Add docs/audio/tts-research.md with Voxtral TTS, Kokoro-FastAPI, openedai-speech comparison
- Add docs/audio/stt-research.md with Voxtral STT, faster-whisper options
- Add docs/gpu/optimization.md with OLLAMA_KEEP_ALIVE and VRAM management
- Add docs/README.md with architecture overview
- Add index files for docs navigation
Research conducted April 2026 for future audio improvements
