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/layout/PageContainer.tsx

@@ -0,0 +1,18 @@
+import { ReactNode } from 'react';
+
+interface PageContainerProps {
+  children: ReactNode;
+  title: string;
+}
+
+export function PageContainer({ children, title }: PageContainerProps) {
+  return (
+    <main className="min-h-screen bg-slate-950">
+      <div className="max-w-7xl mx-auto p-4 md:p-6 lg:p-8 pb-24 lg:pb-8">
+        <div className="space-y-6">
+          {children}
+        </div>
+      </div>
+    </main>
+  );
+}