sharry400/iNotebook ? reverse-engineered prompt

Build me a simple cloud notebook app where people can sign up, log in, and save their notes and documents so they can open them from anywhere.

I want it to feel like a personal online notebook, with a clean place to create, view, edit, and delete notes after signing in. Make the login and signup flow work properly, keep each user’s data private, and store everything in a way that persists online instead of only in the browser.

Use a modern full stack setup and make both the front end and back end work together smoothly. Keep the design simple and easy to use, since this is mainly about organizing notes and documents in one place. If you need to check current best practices or docs while building it, feel free to look them up online.