curl --request GET \
  --url http://localhost:3001/api/v1/business/fraud/blocked

{
  "success": true,
  "data": [
    {
      "id": "b3e3d2d5-2e1b-4fd0-bb63-6c8ad8c0f8c1",
      "type": "IP",
      "value": "192.0.2.10",
      "reason": "High-risk country + velocity spike",
      "expiresAt": "2026-04-23T00:00:00.000Z",
      "createdAt": "2026-04-16T08:05:23.000Z",
      "createdBy": "system",
      "active": true
    }
  ]
}