feat(frontend): add basic frontend

services/frontend/src/app/App.tsx

@@ -0,0 +1,9 @@
+import { DashboardPage } from "../pages/dashboard/ui/DashboardPage";
+
+export function App() {
+  return (
+    <div className="min-h-screen bg-background text-foreground">
+      <DashboardPage />
+    </div>
+  );
+}