{"agent_type":"callsign_analysis","ai_model":"Qwen2.5-3B-Instruct-GPTQ-Int4","ai_pass":true,"ai_provider":"vllm","completed_at":"2026-06-25T18:20:51.563624+00:00","duration_seconds":1.596165,"id":392867,"input_summary":"chars=565 node=683210","metadata":{"llm_candidates":[{"callsign":"KV3JRB","confidence":1.0},{"callsign":"KK7NQN","confidence":0.55}]},"output_summary":"ai_candidates=2 merged=2 calls=KV3JRB,KK7NQN","recording_id":123196,"started_at":"2026-06-25T18:20:49.967459+00:00","status":"completed","step_name":"callsign.llm_extract","transcription_id":123195}