b666b67a03
- Add bots/prompt_layer/korean_preprocessor.py: 200+ entry pronunciation map, number→Korean conversion, dynamic SSML/marker pause insertion - Upgrade bots/shorts/tts_engine.py: SmartTTSRouter (budget-aware engine selection with failure fallback), _tts_openai() function, Korean preprocessing step in generate_tts() Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>