subhamtripathyit/Forever---Ecommerce ? reverse-engineered prompt

Build me a full ecommerce app with a customer storefront and an admin area.

I want people to be able to browse products, search and filter items, see product details, add things to a cart, and place an order. Include user sign up and login, a simple checkout flow, and a place for customers to view their orders. Also make an admin section where I can add, edit, and remove products, manage categories or inventory, and see orders coming in.

Please set it up as a complete MERN style project with a frontend, backend, and admin panel, and make the UI clean and easy to use. Use realistic sample data if needed so it feels like a working store right away. If anything is missing or you need to check current best practices, look up the latest docs online and then build it in a sensible way.