utkarshyadav3001-webdeveloper/ShopEasy ? reverse-engineered prompt

Build me a full stack shopping app where people can browse products, view product details, add items to a cart, and place an order. I want a clean storefront on the front end, plus a simple backend to manage products, users, and orders. Include basic sign up and login, a way to see categories or search through products, and pages for the cart and checkout flow.

Make it feel polished and easy to use on both desktop and mobile. Use real sample product data if needed, and wire the frontend to the backend so the app actually works end to end. If there are any setup details or modern best practices you need to check, look them up online. Please build it in a way that is easy to run locally and easy to expand later.