chaudhary-sneha14/notes-generator ? reverse-engineered prompt

Build me a web app that helps students generate study notes from any topic. I want users to sign in with Google, get 50 free credits when they join, and then enter a topic and choose a difficulty level like beginner, intermediate, or advanced. The app should use AI to turn that into clean, structured notes with key points, simple visual explanations, diagrams or flowcharts, and a few important exam questions with clear priority labels.

Also let people save their notes, view their note history later, and download a note as a PDF. If they run out of credits, they should be able to buy more with Stripe. Make it look polished and work well on phone and desktop, with a smooth, easy to use experience. If you need to check current docs for any integrations, go ahead and look them up online.