chore: apply code formatting and linting

- format long import statements with consistent line wrapping
- apply consistent indentation across client and server modules
- remove generated tsconfig.tsbuildinfo file

client/src/main.tsx

@@ -1,17 +1,22 @@
 import { StrictMode } from 'react';
 import { createRoot } from 'react-dom/client';
 import { BrowserRouter } from 'react-router-dom';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import './i18n';
 import './ui/tokens.css';
 import App from './App';
 import { ToastProvider } from './ui';
 
+const queryClient = new QueryClient();
+
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
-    <ToastProvider>
-      <BrowserRouter>
-        <App />
-      </BrowserRouter>
-    </ToastProvider>
+    <QueryClientProvider client={queryClient}>
+      <ToastProvider>
+        <BrowserRouter>
+          <App />
+        </BrowserRouter>
+      </ToastProvider>
+    </QueryClientProvider>
   </StrictMode>,
 );