fix: upgrade matrix-js-sdk 38.2.0 -> 41.5.0 with API compat fixes

- sessionMembershipsForRoom() removed in v41 (was synchronous, static)
- Replacement: read session.memberships directly (always up-to-date, sync)
  - useCall.ts: useCallMembers reads session.memberships
  - useCallEmbed.ts: createCallEmbed reads rtcSession.memberships
  - CallEmbedProvider.tsx: inline check on session.memberships
- Remove unused MatrixRTCSession import from CallEmbedProvider
- clearLoginData: also unregisters service workers and clears SW caches

src/app/components/CallEmbedProvider.tsx

@@ -111,8 +111,7 @@ function IncomingCall({ dm, info, onIgnore, onAnswer, onReject }: IncomingCallPr
   useCallMembersChange(
     session,
     useCallback(() => {
-      const members = MatrixRTCSession.sessionMembershipsForRoom(room, session.sessionDescription);
-      if (members.length === 0) {
+      if (session.memberships.length === 0) {
         onIgnore();
       }
     }, [room, session, onIgnore]),

src/app/hooks/useCall.ts

@@ -35,12 +35,12 @@ export const useCallSession = (room: Room): MatrixRTCSession => {
 
 export const useCallMembers = (room: Room, session: MatrixRTCSession): CallMembership[] => {
   const [memberships, setMemberships] = useState<CallMembership[]>(
-    MatrixRTCSession.sessionMembershipsForRoom(room, session.sessionDescription),
+    session.memberships,
   );
 
   useEffect(() => {
     const updateMemberships = () => {
-      setMemberships(MatrixRTCSession.sessionMembershipsForRoom(room, session.sessionDescription));
+      setMemberships([...session.memberships]);
     };
 
     updateMemberships();

src/app/hooks/useCallEmbed.ts

@@ -49,8 +49,7 @@ export const createCallEmbed = (
   forceAudioOff = false,
 ): CallEmbed => {
   const rtcSession = mx.matrixRTC.getRoomSession(room);
-  const ongoing =
-    MatrixRTCSession.sessionMembershipsForRoom(room, rtcSession.sessionDescription).length > 0;
+  const ongoing = rtcSession.memberships.length > 0;
 
   const intent = CallEmbed.getIntent(dm, ongoing, pref?.video);
   const initialAudio = forceAudioOff ? false : (pref?.microphone ?? true);

src/client/initMatrix.ts

@@ -88,6 +88,15 @@ export const clearLoginData = async () => {
     }
   });
 
+  // Unregister service workers so stale caches don't interfere after a reset
+  if ('serviceWorker' in navigator) {
+    const regs = await navigator.serviceWorker.getRegistrations();
+    await Promise.all(regs.map((r) => r.unregister()));
+    const cacheNames = await caches.keys();
+    await Promise.all(cacheNames.map((c) => caches.delete(c)));
+  }
+
   window.localStorage.clear();
   window.location.reload();
 };
+