feat: initial commit - finanzas app

Complete personal finance management application with:
- Dashboard with financial metrics and alerts
- Credit card management and payments
- Fixed and variable debt tracking
- Monthly budget planning
- Intelligent alert system
- Responsive design with Tailwind CSS

Tech stack: Next.js 14, TypeScript, Zustand, Recharts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

components/cards/index.ts

@@ -0,0 +1,5 @@
+export { CreditCardWidget } from './CreditCardWidget'
+export { CreditCardForm } from './CreditCardForm'
+export { CardPaymentForm } from './CardPaymentForm'
+export { MiniCard } from './MiniCard'
+export { CardSection } from './CardSection'