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

{
  "customer": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "full_name": "<string>",
    "email": "<string>",
    "phone": "<string>",
    "created_at": "<string>",
    "updated_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,
      "order_frequency_days": 123,
      "category_spend": {},
      "category_frequency": {},
      "category_percent": {},
      "retailer_spend": {},
      "retailer_frequency": {},
      "price_sensitivity_factors": {
        "retailer_discount_ratio": 123,
        "price_vs_median": 123,
        "sale_behavior": 123,
        "brand_premium": 123,
        "weighted_score": 123
      },
      "frequently_purchased": [
        {
          "id": "<string>",
          "count": 123
        }
      ],
      "computed_at": "<string>"
    }
  }
}