Feature 01 task 2: Vite React TypeScript web skeleton (#3)

Co-authored-by: dev_agent <dev_agent@cubecraftlabs.com>
Co-committed-by: dev_agent <dev_agent@cubecraftlabs.com>

web/src/main.tsx

@@ -0,0 +1,17 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import { BrowserRouter } from 'react-router'
+import App from './App.tsx'
+
+const root = document.getElementById('root')
+if (!root) {
+  throw new Error('MealQuest: #root element missing from index.html')
+}
+
+createRoot(root).render(
+  <StrictMode>
+    <BrowserRouter>
+      <App />
+    </BrowserRouter>
+  </StrictMode>,
+)