🆕 Get all service types

{  "success": true,  "statusCode": 200,  "message": "Request processed successfully",  "timestamp": "2025-10-20T16:30:00.000Z",  "path": "/v1/auth/register",  "data": [    {      "id": "serv_123",      "name": "NIN",      "description": "National Identification Number verification service",      "accessLevels": [        {          "id": "acc_123",          "name": "Basic",          "cost": 100,          "feature": {},          "isPrivate": false,          "category": "GENERAL"        }      ],      "createdAt": "2026-03-25T19:25:54Z",      "updatedAt": "2026-03-25T19:25:54Z"    }  ]}