rohit-deogharkar/userBot ? reverse-engineered prompt

Build me a web app for a crypto trading bot called userDexBot. It should let people sign up with a username and password, link their MetaMask once, create a MetaMask smart account, deposit DEOD, USDT, and a little BNB, then enable or stop an automated bot that keeps trading while they are logged out.

The bot should only trade DEOD and USDT on PancakeSwap v3 on BNB Chain, using the MetaMask smart account rules so the user never gives up their private key and the bot can never withdraw funds. Include the safety checks in the browser before MetaMask opens, and make sure stop and withdraw only work with the user’s own MetaMask approval. The app should also show the user when their browser wallet is on the wrong account.

Use a backend and frontend, store logins securely, and make the bot run on the server. If you need to, look up the latest MetaMask smart account docs and PancakeSwap v3 details online before wiring it up.