shafeesyed29/MERN-Stack-Ecommerce ? reverse-engineered prompt

Build me a full ecommerce web app for an electronics store called Fusion Electronics.

I want customers to be able to browse products, search for items, open product details, add things to a cart, and go through a checkout flow that saves the order and shows a confirmation. Please include user sign up and login, basic form validation, and a clean responsive shopping experience that works well on desktop and mobile.

Use a modern React front end with a Node and Express backend and MongoDB for data. Make the UI feel polished and easy to use, with a simple store homepage, product listing, cart page, and checkout page. If it helps, add product recommendations based on similar items so shoppers see related products too. Please also include API documentation and a few tests so the project feels complete. Look up current docs online if you need to.