Deduplicate concurrent API requests from the front end #80
Description
Problem
We have duplicate concurrent API requests in our React frontend:
- GET /products?include_delivery_summary=true (2x on home page)
- GET /api/categories (2x on home page)
- GET /api/products?sort=created_desc (2x on home page)
- GET /products/{id} (2x when viewing product detail)
Solution
Need to deduplicate these concurrent requests to improve performance and scalability.