initial commit after split

webui/src/features/PlaceholderPage.tsx

@@ -0,0 +1,15 @@
+import Card from "../components/Card";
+
+export default function PlaceholderPage({ title }: { title: string }) {
+  return (
+    <div className="content-pad">
+      <div className="page-heading">
+        <h1>{title}</h1>
+        <p>This module is prepared but not implemented yet.</p>
+      </div>
+      <Card>
+        <p className="muted">Next passes will add functionality here.</p>
+      </Card>
+    </div>
+  );
+}