feat: complete CMS v2 with Docker, Fischerei, Meetings, Verband modules + UX audit fixes

Major changes:
- Docker Compose: full Supabase stack (11 services) equivalent to supabase CLI
- Fischerei module: 16 DB tables, waters/species/stocking/catch books/competitions
- Sitzungsprotokolle module: meeting protocols, agenda items, task tracking
- Verbandsverwaltung module: federation management, member clubs, contacts, fees
- Per-account module activation via Modules page toggle
- Site Builder: live CMS data in Puck blocks (courses, events, membership registration)
- Public registration APIs: course signup, event registration, membership application
- Document generation: PDF member cards, Excel reports, HTML labels
- Landing page: real Com.BISS content (no filler text)
- UX audit fixes: AccountNotFound component, shared status badges, confirm dialog,
  pagination, duplicate heading removal, emoji→badge replacement, a11y fixes
- QA: healthcheck fix, API auth fix, enum mismatch fix, password required attribute

apps/web/app/[locale]/home/[account]/fischerei/competitions/page.tsx

@@ -0,0 +1,45 @@
+import { getSupabaseServerClient } from '@kit/supabase/server-client';
+import { createFischereiApi } from '@kit/fischerei/api';
+import { FischereiTabNavigation, CompetitionsDataTable } from '@kit/fischerei/components';
+
+import { CmsPageShell } from '~/components/cms-page-shell';
+import { AccountNotFound } from '~/components/account-not-found';
+
+interface Props {
+  params: Promise<{ account: string }>;
+  searchParams: Promise<Record<string, string | string[] | undefined>>;
+}
+
+export default async function CompetitionsPage({ params, searchParams }: Props) {
+  const { account } = await params;
+  const search = await searchParams;
+  const client = getSupabaseServerClient();
+
+  const { data: acct } = await client
+    .from('accounts')
+    .select('id')
+    .eq('slug', account)
+    .single();
+
+  if (!acct) return <AccountNotFound />;
+
+  const api = createFischereiApi(client);
+  const page = Number(search.page) || 1;
+  const result = await api.listCompetitions(acct.id, {
+    page,
+    pageSize: 25,
+  });
+
+  return (
+    <CmsPageShell account={account} title="Fischerei - Wettbewerbe">
+      <FischereiTabNavigation account={account} activeTab="competitions" />
+      <CompetitionsDataTable
+        data={result.data}
+        total={result.total}
+        page={page}
+        pageSize={25}
+        account={account}
+      />
+    </CmsPageShell>
+  );
+}