update

frontend/src/pages/Kalender.tsx

@@ -1837,12 +1837,12 @@ export default function Kalender() {
     setBookingsError(null);
     try {
       const end = endOfWeek(currentWeekStart, { weekStartsOn: 1 });
-      const [vehiclesData, bookingsData] = await Promise.all([
+      const [vehiclesData, calendarData] = await Promise.all([
         fetchVehicles(),
         bookingApi.getCalendarRange(currentWeekStart, end),
       ]);
       setVehicles(vehiclesData);
-      setBookings(bookingsData);
+      setBookings(calendarData.bookings);
     } catch (e: unknown) {
       setBookingsError(e instanceof Error ? e.message : 'Fehler beim Laden');
     } finally {