{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-07-17T12:58:44.367388+00:00","duration_seconds":2.568354,"id":1790254,"input_summary":"chars=606 node=683210","metadata":{"llm_candidates":[{"callsign":"AB4KT","confidence":0.78}]},"output_summary":"ai_candidates=1 merged=3 calls=AB4KT","recording_id":171765,"started_at":"2026-07-17T12:58:41.799034+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":167415}