550710418/teamsp — reverse-engineered prompt

Build me a minimal local tool that generates a ChatGPT Team checkout link from an access token.

I want a simple web page where I can paste an accessToken, even if it includes Bearer or comes from a JSON blob, then fill in workspace name, number of seats, promo code, country, and currency. When I click a button it should call a small Node server endpoint to create the checkout URL, then show the result with buttons to open it and copy it.

Please keep it lightweight, just a plain HTML page and a Node script I can run locally. The server should avoid browser CORS issues by acting as the middleman. Default to port 61314, but let me override it with PORT. Include clear safety text that the token is sensitive, only for my own authorized account, and if it leaks I should log out and refresh the session.