another step for constructing base project

client/src/app/[locale]/(private-routes)/layout.tsx

@@ -0,0 +1,15 @@
+'use client';
+import type { ReactNode } from 'react';
+import { PrivateLayout } from '@/layout';
+
+/*
+ * Wraps all private (authenticated) routes with the application shell:
+ * TopBar, SideBar, and main content area.
+ *
+ * Authentication enforcement belongs in middleware — this layout only
+ * applies the visual structure. Add a middleware matcher for this group
+ * when real session-based auth is introduced.
+ */
+export default function PrivateRouteLayout({ children }: { children: ReactNode }) {
+  return <PrivateLayout>{children}</PrivateLayout>;
+}

client/src/app/[locale]/(private-routes)/page.tsx

@@ -0,0 +1,3 @@
+export default function HomePage() {
+  return null;
+}