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)

lib/store.ts

@@ -0,0 +1,27 @@
+import { create } from 'zustand'
+import { persist } from 'zustand/middleware'
+import { AppState } from '@/lib/types'
+import { createDebtsSlice, DebtsSlice } from './store/slices/debtsSlice'
+import { createCardsSlice, CardsSlice } from './store/slices/cardsSlice'
+import { createBudgetSlice, BudgetSlice } from './store/slices/budgetSlice'
+import { createAlertsSlice, AlertsSlice } from './store/slices/alertsSlice'
+
+// Combined State Interface
+// Note: We extend the individual slices to create the full store interface
+export interface FinanzasState extends DebtsSlice, CardsSlice, BudgetSlice, AlertsSlice { }
+
+export const useFinanzasStore = create<FinanzasState>()(
+  persist(
+    (...a) => ({
+      ...createDebtsSlice(...a),
+      ...createCardsSlice(...a),
+      ...createBudgetSlice(...a),
+      ...createAlertsSlice(...a),
+    }),
+    {
+      name: 'finanzas-storage',
+      // Optional: Filter what gets persisted if needed in the future
+      // partialize: (state) => ({ ... }) 
+    }
+  )
+)