update

frontend/src/pages/Kalender.tsx

@@ -2985,11 +2985,13 @@ export default function Kalender() {
                       Von: {detailBooking.gebucht_von_name}
                     </Typography>
                   )}
-                  {canWriteBookings && (
+                  {(canWriteBookings || detailBooking.gebucht_von === user?.id) && (
                     <Box sx={{ mt: 1.5, display: 'flex', gap: 1 }}>
+                      {canWriteBookings && (
                         <Button size="small" startIcon={<EditIcon />} onClick={handleOpenBookingEdit}>
                           Bearbeiten
                         </Button>
+                      )}
                       <Button
                         size="small"
                         color="error"