umfangreiche Behebung von TS-Fehlern. "npm run types" läuft nun ohne Fehler durch

resources/js/guest/pages/HomePage.tsx

@@ -19,7 +19,7 @@ export default function HomePage() {
   const { name, hydrated } = useGuestIdentity();
   const stats = useEventStats();
   const { event } = useEventData();
-  const { completedCount } = useGuestTaskProgress(token);
+  const { completedCount } = useGuestTaskProgress(token ?? '');
   const { t, locale } = useTranslation();
   const { branding } = useEventBranding();
 
@@ -86,15 +86,16 @@ export default function HomePage() {
     async function loadMissions() {
       setMissionLoading(true);
       try {
-        const response = await fetch(
-          `/api/v1/events/${encodeURIComponent(token)}/tasks?locale=${encodeURIComponent(locale)}`,
-          {
-            headers: {
-              Accept: 'application/json',
-              'X-Locale': locale,
-            },
-          }
-        );
+    const safeToken = token ?? '';
+    const response = await fetch(
+      `/api/v1/events/${encodeURIComponent(safeToken)}/tasks?locale=${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;