varsh2230/TeachFlow ? reverse-engineered prompt

Build me a full MERN app called TeachFlow that helps users manage teaching and learning in one place.

I want a clean frontend, a working backend, and a database connected end to end, so I can create, view, edit, and delete the main data in the app without anything feeling broken. Make it look modern and easy to use, with a simple home page, forms that actually work, and clear navigation between pages.

Please wire up the frontend and backend properly, set up the API, connect it to the database, and make sure the app runs smoothly in development. If anything is missing or unclear, make a reasonable choice and keep it simple. Use current best practices, and look up current docs online if you need to.