first commit

frontend/src/main.tsx

@@ -0,0 +1,33 @@
+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import { BrowserRouter } from 'react-router-dom';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { AuthProvider } from './context/AuthContext';
+import { AppSettingsProvider } from './context/AppSettingsContext';
+import App from './App';
+import './index.css';
+
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      retry: 1,
+      staleTime: 0,              // Daten sind sofort "veraltet" → immer neu laden
+      gcTime: 0,                 // Kein Cache für unbenutzte Daten
+      refetchOnMount: 'always',  // Immer neu laden wenn Komponente gemountet wird
+    },
+  },
+});
+
+ReactDOM.createRoot(document.getElementById('root')!).render(
+  <React.StrictMode>
+    <QueryClientProvider client={queryClient}>
+      <BrowserRouter>
+        <AppSettingsProvider>
+          <AuthProvider>
+            <App />
+          </AuthProvider>
+        </AppSettingsProvider>
+      </BrowserRouter>
+    </QueryClientProvider>
+  </React.StrictMode>
+);