sudeep05-doc/Expense-Tracker-MERN ? reverse-engineered prompt

Build me a simple expense tracker where people can sign up, log in, and only see their own expenses.

I want users to be able to add an expense with an amount, category, date, and description, view their list of expenses, and delete an expense if they want. Each expense should belong to the person who created it, and all the expense pages and API requests should be protected so only logged in users can access them. Use a clean, modern interface on the front end and a solid API with user authentication behind it. I also want it set up so it can run locally with a MongoDB database, and be easy to deploy later with separate frontend and backend settings.

If you need to check current setup details or best practices while building it, go ahead and look them up online.