yushitaaaaaaaa/Faulty-MERN-App ? reverse-engineered prompt

Build me a simple full stack MERN app with a React frontend and a Node and Express backend, connected to MongoDB. I want it to feel like a real usable starter app, with a clean interface, basic navigation, and a simple create, view, edit, and delete flow for one main kind of item.

Please wire up the client and server so they actually talk to each other, and make sure the app runs smoothly from a fresh install. If anything is unclear, use current docs online and make sensible choices. Keep the code organized, easy to follow, and ready for someone to extend later.

I do not need anything fancy, just a solid working app with the usual pieces in place, plus any setup or scripts needed to start both sides without pain.