Language detection middleware

{
  "code": "Language Detection Middleware — Already fully implemented.\n\nFile: c8_platform/corridor_engine/lingua_engine.py\n\n1. ✅ detect_lingua(text) → LinguaProfile (line 172):\n   - Primary language detection via audio_core.detect_language() (line 188)\n   - Fallback detection via _fallback_detect() (line 154) when audio_core unavailable\n   - Code-switch detection (Spanglish/mixed ES+EN, line 270-276)\n   - Dialect awareness\n   - Returns confidence scores\n\n2. ✅ LinguaProfile class (line 22):\n   - Primary language code\n   - Confidence score\n   - Code-switch detected flag\n   - Normalized text\n\n3. ✅ adapt_response_language() (line 323):\n   - Sets language context for downstream processing\n   - Handles code-switch responses\n\n4. ✅ Integrated in pipeline:\n   - audio_core.py: detect_language() base function\n   - rosetta_conductor.py: language routing\n   - rosetta_voice.py, rosetta_voice_gateway.py: voice language routing\n   - Config per customer (estafeta.yaml, viettel.yaml): language preferences\n\nSupports ES/EN/VI with code-switching detection. No fasttext/langdetect needed — uses custom heuristics + audio_core.",
  "content": "Language Detection Middleware — Already fully implemented.\n\nFile: c8_platform/corridor_engine/lingua_engine.py\n\n1. ✅ detect_lingua(text) → LinguaProfile (line 172):\n   - Primary language detection via audio_core.detect_language() (line 188)\n   - Fallback detection via _fallback_detect() (line 154) when audio_core unavailable\n   - Code-switch detection (Spanglish/mixed ES+EN, line 270-276)\n   - Dialect awareness\n   - Returns confidence scores\n\n2. ✅ LinguaProfile class (line 22):\n   - Primary language code\n   - Confidence score\n   - Code-switch detected flag\n   - Normalized text\n\n3. ✅ adapt_response_language() (line 323):\n   - Sets language context for downstream processing\n   - Handles code-switch responses\n\n4. ✅ Integrated in pipeline:\n   - audio_core.py: detect_language() base function\n   - rosetta_conductor.py: language routing\n   - rosetta_voice.py, rosetta_voice_gateway.py: voice language routing\n   - Config per customer (estafeta.yaml, viettel.yaml): language preferences\n\nSupports ES/EN/VI with code-switching detection. No fasttext/langdetect needed — uses custom heuristics + audio_core."
}