shamald09/TaskPilot ? reverse-engineered prompt

Build me a full stack task management app called TaskPilot.

I want a clean modern web app where people can sign up, log in, and log out securely, then manage tasks on a board with To Do, In Progress, and Done columns. Users should be able to create, edit, delete, search, and drag tasks between columns, and the UI should feel fast with instant updates when actions happen. Please make protected pages so only logged in users can see the task board.

Use a React frontend with a nice responsive layout and a Node, Express, MongoDB backend. Keep authentication with JWT and cookies, and make sure forms have good validation and error messages. Add toast notifications for success and failure, and make the app work well on both desktop and mobile.

If you need to check current docs for any library behavior, go ahead and look them up online first.