yashdd30/Expense-Tracker-1-Mern ? reverse-engineered prompt

Build me a simple expense tracker web app where I can add, edit, and delete income and expense entries, see my total balance, and understand where my money is going at a glance.

I want a clean user interface on the front end and a small backend that stores the data and serves it to the app. Please make it easy to use on desktop and mobile, and include basic form validation so bad entries are prevented. It should feel polished, with a dashboard that shows income, expenses, and remaining balance clearly, plus a list or history of transactions I can review.

If you need to, look up current docs online for the best way to wire up the client and server. Keep the code organized and make sure the app runs smoothly from both parts of the project.