curl --request GET \
  --url http://localhost:3000/v1/customers

{
  "customers": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "full_name": "<string>",
      "email": "<string>",
      "phone": "<string>",
      "created_at": "<string>",
      "analytics": {
        "total_orders": 123,
        "total_spend": 123,
        "average_order_value": 123,
        "orders_pending": 123,
        "orders_completed": 123,
        "orders_cancelled": 123,
        "first_order_at": "<string>",
        "last_order_at": "<string>",
        "price_sensitivity_score": 123
      }
    }
  ],
  "total": 123
}