List webhook configs

Example response

{
  "status": true,
  "message": "Operation completed successfully",
  "data": [
    {
      "id": "68f11209-451f-4a15-bfcd-d916eb8b09f4",
      "merchantId": "68f11209-451f-4a15-bfcd-d916eb8b09f5",
      "url": "https://example.com/webhooks/bila",
      "secret": "a1b2****c3d4",
      "events": [
        "payment.completed",
        "collection.completed"
      ],
      "isActive": true,
      "createdAt": "2026-04-01T10:00:00.000Z",
      "updatedAt": "2026-04-15T14:30:00.000Z"
    }
  ]
}