Get customer monitored assets

{
  "success": true,
  "domains": [
    "example.com",
    "sub.example.com"
  ],
  "emails": [
    "user@example.com",
    "admin@example.com"
  ]
}

{
  "success": false,
  "error": "Customer ID is required"
}

{
  "success": false,
  "error": "Failed to verify org API key"
}

{
  "success": false,
  "error": "Customer not found or does not belong to partner"
}

{
  "success": false,
  "error": "Partner ID and API key are required in headers"
}

{
  "success": false,
  "error": "Failed to retrieve customer assets"
}