hassanimran02/ExpenseTracker ? reverse-engineered prompt

Build me a simple expense tracker web app for personal budgeting. I want people to be able to sign up, log in, and keep their own expense data private. After logging in, they should be able to add expenses, choose a category, and attach each expense to a budget.

I also want a budget section where users can create, edit, and delete budgets for a date range, enter their monthly income, and set percentage allocations for different categories. Make sure the category percentages have to add up to 100 before saving.

The main dashboard should feel useful at a glance. Show the current budget, how much is left, how much has been spent as a percentage, recent expenses, a category breakdown with charts, and the highest spending day from the last week. It should be clean and easy to use, with basic validation for things like email and password. Please wire it up to a database so the data persists, and look up any current docs online if you need to.