srusti-das-git/OIBSIP ? reverse-engineered prompt

Build me a pizza delivery web app where customers can browse pizzas, add items to a cart, place an order, and pay online. I want separate access for regular users and admins, so customers can order food while admins can manage the menu, orders, and stock. Include live order tracking so people can see the status of their delivery as it moves along. Add online payments with Razorpay, and make sure the app sends automated alerts when ingredient or inventory stock gets low. Keep it modern, clean, and easy to use on both desktop and mobile. If you need to check current docs or best practices for anything, feel free to look them up.