sr2026/To-Do-List-using-MERN-Stack ? reverse-engineered prompt

Build me a full stack task manager app where people can sign up, log in, and manage their own to do lists safely with JWT based authentication.

I want a clean responsive interface with a dark and light mode toggle, and tasks should feel easy to use on both desktop and mobile. Users should be able to add, edit, and delete tasks, mark them complete, set a priority like high, medium, or low, and choose a due date. Please add live search, status filters for all, active, and completed, plus sorting by newest, priority, or upcoming due dates.

Make the UI modern and polished, with smooth interactions and a nice card style look. Use React for the frontend, Node and Express for the backend, MongoDB for storage, and keep passwords encrypted. If you need to look up current docs online for anything, go ahead.