feat: add guest notification center

resources/js/admin/pages/EventDetailPage.tsx

@@ -52,6 +52,7 @@ import {
   ActionGrid,
   TenantHeroCard,
 } from '../components/tenant';
+import { GuestBroadcastCard } from '../components/GuestBroadcastCard';
 
 type EventDetailPageProps = {
   mode?: 'detail' | 'toolkit';
@@ -268,6 +269,15 @@ export default function EventDetailPage({ mode = 'detail' }: EventDetailPageProp
 
           <MetricsGrid metrics={toolkitData?.metrics} stats={stats} />
 
+          <SectionCard className="space-y-4">
+            <SectionHeader
+              eyebrow={t('events.notifications.badge', 'Gästefeeds')}
+              title={t('events.notifications.panelTitle', 'Nachrichten an Gäste')}
+              description={t('events.notifications.panelDescription', 'Verschicke kurze Hinweise oder Hilfe an die Gästepwa. Links werden direkt im Notification-Center angezeigt.')}
+            />
+            <GuestBroadcastCard eventSlug={event.slug} eventName={eventName} />
+          </SectionCard>
+
           <div className="grid gap-6 xl:grid-cols-[minmax(0,1.4fr)_minmax(0,0.8fr)]">
             <TaskOverviewCard tasks={toolkitData?.tasks} navigateToTasks={() => navigate(ADMIN_EVENT_TASKS_PATH(event.slug))} />
             <InviteSummary