sarthakchopde/shopnest-mern-ecommerce ? reverse-engineered prompt

Build me a full stack e commerce app called ShopNest where people can sign up, log in, browse products, view product details, add items to a cart, and place orders with a smooth checkout flow. I want users to have a profile page, order history, and secure login with protected pages.

Also include an admin area where I can add, edit, and delete products, upload product images, and manage orders. Use cloud image uploads and Razorpay test payments so the checkout actually feels real. Please make it with a modern React frontend and a Node and Express backend, with MongoDB for data storage, JWT authentication, and a clean responsive UI.

If you need to look up current docs online for anything, go ahead. Please also include a simple seed setup with a default admin account so I can test it quickly.