feat(dashboard): add React foundation and overview

apps/dashboard/src/main.tsx

@@ -0,0 +1,17 @@
+import { StrictMode } from 'react';
+import { createRoot } from 'react-dom/client';
+import { RouterProvider } from 'react-router-dom';
+import { AppProviders } from './app/providers.js';
+import { dashboardRouter } from './app/router.js';
+import './styles.css';
+
+const rootElement = document.getElementById('root');
+if (!rootElement) throw new Error('Dashboard root element is missing');
+
+createRoot(rootElement).render(
+  <StrictMode>
+    <AppProviders>
+      <RouterProvider router={dashboardRouter} />
+    </AppProviders>
+  </StrictMode>,
+);