feat: add cross-organization member search and template cloning functionality

apps/web/app/[locale]/home/[account]/verband/clubs/[clubId]/page.tsx

@@ -27,7 +27,16 @@ export default async function ClubDetailPage({ params }: Props) {
   if (!acct) return <AccountNotFound />;
 
   const api = createVerbandApi(client);
-  const detail = await api.getClubDetail(clubId);
+
+  let detail: Awaited<ReturnType<typeof api.getClubDetail>>;
+
+  try {
+    detail = await api.getClubDetail(clubId);
+  } catch {
+    return <AccountNotFound />;
+  }
+
+  if (!detail?.club) return <AccountNotFound />;
 
   return (
     <CmsPageShell account={account} title={`Verein – ${detail.club.name}`}>