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

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

@@ -0,0 +1,65 @@
+import { getSupabaseServerClient } from '@kit/supabase/server-client';
+import { createVerbandApi } from '@kit/verbandsverwaltung/api';
+import {
+  VerbandTabNavigation,
+  HierarchyEvents,
+} from '@kit/verbandsverwaltung/components';
+
+import { AccountNotFound } from '~/components/account-not-found';
+import { CmsPageShell } from '~/components/cms-page-shell';
+
+interface PageProps {
+  params: Promise<{ account: string }>;
+  searchParams: Promise<{
+    status?: string;
+    sharedOnly?: string;
+    fromDate?: string;
+    page?: string;
+  }>;
+}
+
+export default async function HierarchyEventsPage({
+  params,
+  searchParams,
+}: PageProps) {
+  const { account } = await params;
+  const sp = await searchParams;
+  const client = getSupabaseServerClient();
+
+  const { data: acct } = await client
+    .from('accounts')
+    .select('id')
+    .eq('slug', account)
+    .single();
+
+  if (!acct) return <AccountNotFound />;
+
+  const api = createVerbandApi(client);
+  const page = Math.max(1, Number(sp.page) || 1);
+  const pageSize = 25;
+
+  const result = await api.listHierarchyEvents(acct.id, {
+    status: sp.status,
+    sharedOnly: sp.sharedOnly === 'true',
+    fromDate: sp.fromDate,
+    page,
+    pageSize,
+  });
+
+  return (
+    <CmsPageShell
+      account={account}
+      title="Verbandsverwaltung - Veranstaltungen"
+      description="Veranstaltungen aller verknüpften Organisationen anzeigen und filtern"
+    >
+      <VerbandTabNavigation account={account} activeTab="events" />
+      <HierarchyEvents
+        account={account}
+        events={result.data}
+        total={result.total}
+        page={page}
+        pageSize={pageSize}
+      />
+    </CmsPageShell>
+  );
+}