INSIGHT-MVP/packages/frontend/src/main.tsx

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 './auth/AuthContext';
import { ThemeProvider } from './theme/ThemeContext';
import { App } from './shell/App';
import './index.css';

const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      retry: 1,
      staleTime: 5 * 60 * 1000, // 5 Minuten
      refetchOnWindowFocus: false,
    },
  },
});

ReactDOM.createRoot(document.getElementById('root')!).render(
  <React.StrictMode>
    <BrowserRouter>
      <QueryClientProvider client={queryClient}>
        <ThemeProvider>
          <AuthProvider>
            <App />
          </AuthProvider>
        </ThemeProvider>
      </QueryClientProvider>
    </BrowserRouter>
  </React.StrictMode>,
);