feat: add delete functionality for leases, catch books, and permits; implement newsletter update feature

apps/web/app/[locale]/home/[account]/newsletter/[campaignId]/edit/page.tsx

@@ -0,0 +1,45 @@
+import { createNewsletterApi } from '@kit/newsletter/api';
+import { CreateNewsletterForm } from '@kit/newsletter/components';
+import { getSupabaseServerClient } from '@kit/supabase/server-client';
+
+import { AccountNotFound } from '~/components/account-not-found';
+import { CmsPageShell } from '~/components/cms-page-shell';
+
+interface Props {
+  params: Promise<{ account: string; campaignId: string }>;
+}
+
+export default async function EditNewsletterPage({ params }: Props) {
+  const { account, campaignId } = await params;
+  const client = getSupabaseServerClient();
+
+  const { data: acct } = await client
+    .from('accounts')
+    .select('id')
+    .eq('slug', account)
+    .single();
+
+  if (!acct) return <AccountNotFound />;
+
+  const api = createNewsletterApi(client);
+  const newsletter = await api.getNewsletter(campaignId);
+  if (!newsletter) return <AccountNotFound />;
+
+  const n = newsletter as Record<string, unknown>;
+
+  return (
+    <CmsPageShell account={account} title="Newsletter bearbeiten">
+      <CreateNewsletterForm
+        accountId={acct.id}
+        account={account}
+        newsletterId={campaignId}
+        initialData={{
+          subject: String(n.subject ?? ''),
+          bodyHtml: String(n.body_html ?? ''),
+          bodyText: String(n.body_text ?? ''),
+          scheduledAt: String(n.scheduled_at ?? ''),
+        }}
+      />
+    </CmsPageShell>
+  );
+}