curl --request GET \
  --url https://api-prod.blaaiz.com/api/external/customer \
  --header 'x-blaaiz-api-key: <api-key>'

{
  "message": "Customers retrieved successfully",
  "data": [
    {
      "id": "customer_123",
      "type": "individual",
      "first_name": "John",
      "last_name": "Doe",
      "email": "[email protected]",
      "phone_number": "+2348012345678",
      "status": "verified",
      "created_at": "2024-01-15T10:30:00Z"
    },
    {
      "id": "customer_456",
      "type": "business",
      "business_name": "Acme Corp",
      "email": "[email protected]",
      "phone_number": "+2348012345679",
      "status": "verified",
      "created_at": "2024-01-14T09:20:00Z"
    }
  ]
}