{
  "enabled": true,
  "name": "字段消失扫描",
  "description": "手动触发 DWD 表字段消失扫描，检测字段值从某天起突然全部为空的异常（≥3天且≥20条连续空记录）。输出终端报告 + CSV。",
  "version": "1",
  "when": {
    "type": "userTriggered"
  },
  "then": {
    "type": "runCommand",
    "command": "python scripts/ops/field_disappearance_scan.py",
    "timeout": 300
  }
}