{"name":"step_structure.log","content":"{\"event\": \"start\", \"ts\": \"2026-08-01T11:55:48.349480+00:00\", \"detail\": {\"profile\": \"yaodian_clinical\", \"version\": \"2.0.0\"}}\n{\"event\": \"end\", \"ts\": \"2026-08-01T11:55:48.379206+00:00\", \"ok\": true, \"detail\": {\"chunks\": 4, \"roles\": [\"drug\", \"parent\"], \"drugs\": 3, \"engine\": \"yaodian_chunker_v1\"}}\n"}