curl --request GET \
  --url https://api-prod.blaaiz.com/api/external/customer/{id} \
  --header 'Authorization: Bearer <token>'

{
  "status": true,
  "message": "Customer retrieved successfully",
  "data": {
    "id": "customer_123456789",
    "type": "individual",
    "first_name": "John",
    "last_name": "Doe",
    "email": "john@example.com",
    "phone_number": "+2348012345678",
    "date_of_birth": "1990-01-15",
    "address": {
      "street": "123 Main Street",
      "city": "Lagos",
      "state": "Lagos",
      "country": "NG",
      "postal_code": "100001"
    },
    "id_type": "passport",
    "id_number": "A12345678",
    "files": [
      {
        "id": "file_123",
        "category": "identity",
        "url": "https://...",
        "uploaded_at": "2024-01-15T10:35:00Z"
      }
    ],
    "status": "verified",
    "created_at": "2024-01-15T10:30:00Z",
    "updated_at": "2024-01-15T10:40:00Z"
  }
}