javis-bot bb60c4db3b feat(tts): default to offline GPU MeloTTS with brain-role worker ...

Switch the default TTS engine from online Edge TTS to offline GPU
MeloTTS (privacy-first: reply text never leaves the host). Adds a
supervisord melo-worker program that runs in full/bot/brain roles and
synthesises Korean on the GPU (MELO_DEVICE=cuda, MELO_SPEED=1.5), a
baked /opt/melo py3.11 venv layer in the Dockerfile, and compose/env
defaults. Edge TTS stays available as an opt-in online fallback via
TTS_ENGINE=edge.

Verified on the RTX 5050 (Blackwell sm_120): melo-worker logs
"ready (lang=KR speed=1.5 device=cuda)", /health returns ok, and a
/synth round-trip returns a 177KB WAV.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-07-22 20:39:54 +09:00

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