udayan35/CollaborativeDocEditor ? reverse-engineered prompt

Build me a full stack collaborative document editor where people can sign up, verify their email, log in, and then create and edit documents together in real time.

I want the editing experience to feel smooth like a modern rich text editor, with formatting options, live syncing, and visible collaborator presence so users can see who else is in the doc. If two people edit at once, the content should stay in sync without overwriting each other. Use a typical MERN style setup, with a Node and Express backend, React frontend, MongoDB for saving users and documents, and real time updates through sockets and collaborative editing support. Please include the basic pages for sign up, email verification, login, document list, and the editor itself.

Set it up so I can run it locally with a backend and frontend, and keep the configuration simple with environment variables. If you need anything unclear, look up the current docs online first and then build it.