feat: vollständiges Dashboard-Redesign mit HeroUI - monolithische App.tsx aufgelöst, 16 Seiten, Context-API, collapsible Sidebar, neues Dashboard-Layout

frontend/src/main.tsx

@@ -1,10 +1,13 @@
 import React from 'react';
 import ReactDOM from 'react-dom/client';
 import App from './App';
+import { AppProvider } from './context/AppContext';
 import './app.css';
 
 ReactDOM.createRoot(document.getElementById('root') as HTMLElement).render(
   <React.StrictMode>
-    <App />
+    <AppProvider>
+      <App />
+    </AppProvider>
   </React.StrictMode>
 );