first commit

frontend/src/main.tsx

@@ -0,0 +1,21 @@
+import { StrictMode } from 'react';
+import { createRoot } from 'react-dom/client';
+import { BrowserRouter } from 'react-router-dom';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { ToastProvider } from './components/ui/Toast';
+import App from './App';
+import './styles/globals.css';
+
+const queryClient = new QueryClient();
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <QueryClientProvider client={queryClient}>
+      <BrowserRouter>
+        <ToastProvider>
+          <App />
+        </ToastProvider>
+      </BrowserRouter>
+    </QueryClientProvider>
+  </StrictMode>,
+);