zombo-bot/Manoza_MERNSTACK ? reverse-engineered prompt

Build out this MERN stack project into a working app with a clean, polished interface and real login and authentication.

Right now I just want a smooth experience where users can sign up, log in, stay signed in, and log out safely. Please wire up the frontend and backend so the auth flow actually works, protect private pages, and make the UI look modern and easy to use. If anything is missing, create the needed screens, API routes, and basic state handling so the app feels complete. Keep it simple and organized, and make sure the main user journey is clear from the first page.

If you need to check current docs or best practices while building, go ahead and look them up.