feat: localize guest endpoints and caching

resources/js/guest/pages/HomePage.tsx

@@ -20,7 +20,7 @@ export default function HomePage() {
   const stats = useEventStats();
   const { event } = useEventData();
   const { completedCount } = useGuestTaskProgress(token);
-  const { t } = useTranslation();
+  const { t, locale } = useTranslation();
   const { branding } = useEventBranding();
 
   const heroStorageKey = token ? `guestHeroDismissed_${token}` : 'guestHeroDismissed';
@@ -86,7 +86,15 @@ export default function HomePage() {
     async function loadMissions() {
       setMissionLoading(true);
       try {
-        const response = await fetch(`/api/v1/events/${encodeURIComponent(token)}/tasks`);
+        const response = await fetch(
+          `/api/v1/events/${encodeURIComponent(token)}/tasks?locale=${encodeURIComponent(locale)}`,
+          {
+            headers: {
+              Accept: 'application/json',
+              'X-Locale': locale,
+            },
+          }
+        );
         if (!response.ok) throw new Error('Aufgaben konnten nicht geladen werden.');
         const payload = await response.json();
         if (cancelled) return;
@@ -119,7 +127,7 @@ export default function HomePage() {
     return () => {
       cancelled = true;
     };
-  }, [shuffleMissionPreview, token]);
+  }, [shuffleMissionPreview, token, locale]);
 
   if (!token) {
     return null;