{
  "month": "2026-04",
  "test_plates": [],
  "test_threshold_km": 50,
  "source_priority": {
    "hydrogen": ["guangzhou"],
    "tbox": ["vehicle-platform"],
    "gps": ["g7", "dongfang", "xinda", "guangan"]
  },
  "rules": [
    {
      "plate": "DEMO-001",
      "target_id": 1,
      "target_name": "交投40辆4.5T普货",
      "monthly_target_km": 3000,
      "valid_from": "2026-04-01",
      "valid_to": "2026-04-30"
    }
  ]
}