xavieluh/mern-ai-content-generator ? reverse-engineered prompt

Build me a full web app that helps people generate content with AI.

I want users to be able to sign up, log in, and stay signed in with a secure cookie. After that, they should be able to enter a topic, pick a tone and category, and generate content. The app should save each result to the user’s account so they can see their past generations later in a history page, and also view their account details on a dashboard.

Please include a simple plan and checkout flow too, with payment intent support and a way to mark payments as successful, even if the billing part is still a prototype. Make it feel like a real product, with a clean React frontend and an Express backend talking to a database. If you need to look up current docs online while wiring up the auth or payment pieces, go ahead.