thetateman/Trading-API ? reverse-engineered prompt

Build me a simple web app or bot for trading on Pump.fun using PumpPortal.

I want a clean interface where I can paste a token mint, choose buy or sell, enter an amount, slippage, and priority fee, then generate a signed transaction and send it through my wallet. It should also let me use a custom Solana RPC if I want, and show the transaction link after it goes through.

Please also add a live feed that listens for new token launches and trade activity in real time, with an easy way to watch specific tokens or wallet addresses. I want the app to feel straightforward for someone who is not super technical, with clear status messages, errors, and a simple layout.

If you need to check current docs or small implementation details, look them up online.