{"message":"TTS Proxy Service - Doubao WAV Gateway (2FA enabled)","endpoints":["POST /v1beta/models/{model}:generateContent - Google TTS API compatible endpoint","GET /v1/audio/voices - voice list from ROLE_SPEAKER_MAP_JSON","POST /v1/audio/speech - OpenAI-compatible WAV endpoint","GET/POST /v1/audio/speech-stream - WAV stream endpoint","GET/POST /admin/config - config management + PM2 restart","GET /tts-client - web UI with 2FA"]}