feat: add policy pages

app/(app)/u/[handle]/profile-og.ts

@@ -0,0 +1,47 @@
+/**
+ * Shared `generateMetadata` helper for /u/[handle] routes.
+ *
+ * Both `/u/[handle]/page.tsx` (Posts tab) and `/u/[handle]/posts/page.tsx`
+ * (scroll feed) want the same profile-flavoured OG card on direct URL
+ * shares — the difference between the two is purely the rendered body,
+ * not the social preview. This helper fetches the profile via the
+ * server-side BFF client and hands it to the canonical `ogForProfile`
+ * builder.
+ *
+ * Failures (404 handle, BFF unreachable, malformed payload) fall back
+ * to the site-level `ogDefault` so unfurlers still get a valid card
+ * rather than nothing.
+ *
+ * Note: the page's underlying `app/u/[handle]/layout.tsx` is a client
+ * component and can't export `generateMetadata`. The metadata has to
+ * live on the (server) page that mounts the client tree, which is why
+ * we slim each page.tsx down to a server shell + a separate client
+ * content file.
+ */
+
+import type { Metadata } from "next";
+import { bff } from "@/lib/bff";
+import { ogDefault, ogForProfile } from "@/lib/og";
+
+type PublicProfileForOg = {
+  handle: string;
+  name: string;
+  post_count?: number;
+};
+
+export async function metadataForHandle(handle: string): Promise<Metadata> {
+  try {
+    const profile = await bff<PublicProfileForOg>(
+      `/u/${encodeURIComponent(handle)}`,
+      { revalidate: 60 },
+    );
+    if (!profile) return ogDefault();
+    return ogForProfile({
+      handle: profile.handle,
+      name: profile.name,
+      postCount: profile.post_count,
+    });
+  } catch {
+    return ogDefault();
+  }
+}