fix(social): complete shared listening request lifecycle

apps/mobile/src/features/social/Listening.tsx

@@ -38,7 +38,7 @@ export function ListenTogetherButton({ person }: { person: SocialPerson }) {
 function TogetherSheet({ person, close }: { person: SocialPerson; close: () => void }) {
   const { t } = useTranslation(); const { api, key } = useListening(); const cache = useQueryClient(); const state = usePlayerState(); const errorText = useErrorText();
   const [kind, setKind] = useState<'join' | 'invite'>(person.activity ? 'join' : 'invite'); const [id] = useState(() => eventId(Date.now()));
-  const action = useMutation({ mutationFn: () => api.listeningAction({ id, action: kind, target_id: person.id }), onSuccess: async () => { await cache.invalidateQueries({ queryKey: key }); } });
+  const action = useMutation({ mutationFn: () => api.listeningAction({ id, action: kind, target_id: person.id }), onSuccess: () => { close(); void cache.invalidateQueries({ queryKey: key }); } });
   return <Modal animationType="slide" onRequestClose={close}><Screen><ScrollView contentContainerStyle={{ padding: 20, gap: 16 }}><Button title={t('form.close')} variant="ghost" onPress={close} /><H1>{t('social.together')}</H1><Muted>{person.display_name}</Muted><Muted>{t('social.stream_choice')}</Muted>
     <Button title={t('social.join_stream')} variant={kind === 'join' ? 'primary' : 'ghost'} disabled={!person.activity || action.isPending || action.isSuccess} onPress={() => setKind('join')} />
     <Button title={t('social.invite_stream')} variant={kind === 'invite' ? 'primary' : 'ghost'} disabled={!state.track || state.listening?.locked || action.isPending || action.isSuccess} onPress={() => setKind('invite')} />