satyendra1135-gif/Mern-Todo-Management-App ? reverse-engineered prompt

Build me a simple todo management app where I can add tasks, edit them, mark them as done, and delete them.

I want a clean frontend and a backend that saves the todos properly so they are still there after refreshing the page. Make it feel like a real app, not just a demo, with a tidy layout and an easy way to see my active tasks and completed tasks.

If it makes sense, add basic filtering so I can quickly view all, active, or completed todos. Keep the experience smooth and straightforward, with good form handling and clear success or error messages. Use the existing frontend and backend folders and wire everything together so it works as one full app. If you need to check current docs or best practices while building, go ahead and look them up.