feat: implement initial fullstack portfolio application including dashboard, CMS, and analytics features.

src/app/dashboard/overview/page.tsx

@@ -0,0 +1,7 @@
+export default function CMSPage() {
+  return (
+    <section className="min-h-[100vh] flex items-center justify-center p-4 relative overflow-hidden bg-background">
+      <h1>CMS</h1>
+    </section>
+  );
+}