{
  "code": 500,
  "msg": "[文档生成] DocumentGenerationException: 模板文件不存在 (2026-09-21 10:00:00)",
  "ProcessMode": "async",
  "data": null,
  "bizParam": {
    "BusinessId": 789012,
    "BusinessSerialNumber": "IT-2026-0001"
  }
}