zzaidatpro/mern-todo-jwt-mongo-crud ? reverse-engineered prompt

Build me a simple todo app with user accounts, where people can sign up, log in, and stay signed in with a token.

After login, each user should be able to create, view, edit, complete, and delete their own todos. Make sure one user can’t see or change another user’s tasks. Use a database to store the users and todos, and make the app feel clean and easy to use on the front end.

I want the full project working from end to end, with the backend API, the frontend screens, and basic tests if possible. Please include the main flows like registration, login, logout, and todo management, and make sure the app handles bad input and failed login nicely.

If you need to check current docs for anything, go ahead and look them up online.