{
  "id": 1,
  "task_type": "demo_task",
  "target_id": "demo_target_1",
  "input_id": "demo_input_42",
  "input_title": "示例任务输入标题",
  "status": "success",
  "error_msg": null,
  "result_summary": "{\"processed\": 10, \"skipped\": 0}",
  "created_at": "2026-04-01T10:00:00",
  "updated_at": "2026-04-01T10:00:00"
}