javis-bot 8a2a109d5e feat(brain): make OUTPUT_LANGUAGE lock robust on small models ...

Harden the reply-language lock so qwen2.5:3b reliably stays in the locked
language instead of leaking the query language back in:

- reply_language_directive(): single resolver with clear precedence —
  explicit OUTPUT_LANGUAGE lock wins over the Piper/Chatterbox English-only
  fallback (this deployment's actual TTS is Korean MeloTTS, so the legacy
  English lock was both wrong and contradicting the Korean lock).
- Stronger, override-explicit directive wording, inserted near the FRONT of
  the system prompt so a small model gives it primacy over the persona.
- build_system_prompt(output_language=...): rewrite the persona's "in the
  user's language" clause to the locked language so the persona stops
  fighting the lock.
- docs/llm_contexts.md: document the resolver, precedence, and placement.

Live-verified on the running brain (qwen2.5:3b): Korean voice-style input
and a cold English query both return fully Korean replies with no CJK/Hanja
leak. Tests cover unset/set/agnostic/whitespace + precedence + persona rewrite.

2026-06-12 21:18:47 +09:00

4.5 KiB

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