curl --request GET \
  --url https://api.g-tateth.com/api/v1/customers \
  --header 'Authorization: <api-key>'

{
  "success": true,
  "data": [
    {
      "_id": "<string>",
      "profile": {
        "firstName": "<string>",
        "lastName": "<string>",
        "email": "<string>",
        "phone": "<string>"
      },
      "tier": "bronze",
      "status": "active",
      "tags": [
        "<string>"
      ]
    }
  ],
  "pagination": {
    "total": 100,
    "page": 1,
    "limit": 20,
    "totalPages": 5
  }
}