- bridge stt.enabled from config.yaml into gateway runtime config - preserve the flag in GatewayConfig serialization - skip gateway voice transcription when STT is disabled - add regression tests for config loading and disabled transcription flow
- bridge stt.enabled from config.yaml into gateway runtime config - preserve the flag in GatewayConfig serialization - skip gateway voice transcription when STT is disabled - add regression tests for config loading and disabled transcription flow