Flujo 6.1. Budgets and savings goals.

Budgets. Set a monthly limit per category. A progress bar shows how much
you have spent vs the limit. The bar changes color: category color under
80 percent, ochre at 80 to 100 (almost there warning), red over 100
(over budget). The percentage and a short warning message appear next to
each bar. Delete a budget with the x button on hover.

Savings goals. Set a goal with a name, target amount and optional
deadline. The app calculates your current savings (total income minus
total expenses across all time) and shows a green progress bar toward
the goal. When you hit 100 percent the goal name turns green with a
checkmark. Useful for things like save 500 for summer trip.

Both features appear in the resumen tab below the charts. They update
automatically when you add or remove expenses. Everything is stored in
localStorage, no server.