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)

app/providers.tsx

@@ -0,0 +1,41 @@
+"use client";
+
+import { createContext, useContext, useState, ReactNode } from "react";
+
+interface SidebarContextType {
+  isOpen: boolean;
+  toggle: () => void;
+  close: () => void;
+  open: () => void;
+}
+
+const SidebarContext = createContext<SidebarContextType | undefined>(undefined);
+
+export function Providers({ children }: { children: ReactNode }) {
+  const [isSidebarOpen, setIsSidebarOpen] = useState(true);
+
+  const toggleSidebar = () => setIsSidebarOpen((prev) => !prev);
+  const closeSidebar = () => setIsSidebarOpen(false);
+  const openSidebar = () => setIsSidebarOpen(true);
+
+  return (
+    <SidebarContext.Provider
+      value={{
+        isOpen: isSidebarOpen,
+        toggle: toggleSidebar,
+        close: closeSidebar,
+        open: openSidebar,
+      }}
+    >
+      {children}
+    </SidebarContext.Provider>
+  );
+}
+
+export function useSidebar() {
+  const context = useContext(SidebarContext);
+  if (context === undefined) {
+    throw new Error("useSidebar must be used within a Providers");
+  }
+  return context;
+}