AMAN194701/AceUrExam ? reverse-engineered prompt

Build me a simple web app that helps students turn study notes into practice quizzes.

I want to upload a PDF, DOCX, or TXT file, have the text pulled out and organized by subject or topic, then generate multiple choice exam questions from it with short explanations for each answer. Let me choose how many questions I want, pick an easy, medium, or hard level, and make a quiz from the generated questions.

The quiz should feel interactive, with a timer, answer selection, instant scoring, and a results page that shows what I got right and wrong. After that, I want the app to keep track of weak topics over time, show basic performance stats like average score and best score, and suggest what to study next.

Use a simple local database so the uploads, questions, quizzes, and attempts are saved. If you need current docs or API details for the AI part, look them up online.