feat: add camera watch/unwatch with click propagation fix and correct badge color

Add ability to unsubscribe from remote camera tracks via context menu,
with unwatched state tracked in voiceStore. Fix click propagation through
React portals by adding onClick stopPropagation alongside onMouseDown on
both the main context menu and MoveToSubmenu flyout portal containers.
Use rose badge color for unwatched cameras (user choice) instead of amber
(reserved for server-enforced states).

packages/web/src/hooks/useLiveKit.ts

@@ -111,6 +111,17 @@ export function setStreamSubscription(room: Room | null, targetIdentity: string,
   });
 }
 
+export function setCameraSubscription(room: Room | null, targetIdentity: string, subscribed: boolean) {
+  if (!room) return;
+  const rp = room.remoteParticipants.get(targetIdentity);
+  if (!rp) return;
+  rp.trackPublications.forEach((pub) => {
+    if (pub.source === Track.Source.Camera) {
+      (pub as RemoteTrackPublication).setSubscribed(subscribed);
+    }
+  });
+}
+
 function parseIdentity(identity: string): { userId: string; username: string } {
   const parts = identity.split(':');
   return { userId: parts[0] ?? identity, username: parts[1] ?? identity };
@@ -167,9 +178,12 @@ export function useLiveKit() {
       let lkVideoTrack: Track | null = null;
       let lkScreenTrack: Track | null = null;
       let hasScreenSharePublication = false;
+      let hasCameraPublication = false;
       p.trackPublications.forEach((pub) => {
         // Detect screen share publication even if unsubscribed
         if (pub.source === Track.Source.ScreenShare) hasScreenSharePublication = true;
+        // Detect camera publication even if unsubscribed (for unwatched cameras)
+        if (pub.source === Track.Source.Camera) hasCameraPublication = true;
 
         const track = pub.track;
         if (!track) return;
@@ -212,7 +226,7 @@ export function useLiveKit() {
         homeUserId,
         isMuted: isPartMuted,
         isDeafened: isPartDeafened,
-        isCameraOn: !!videoTrack,
+        isCameraOn: hasCameraPublication && p.isCameraEnabled, // True even when unsubscribed
         isScreenSharing: hasScreenSharePublication, // True even when unsubscribed
         isLocal,
         audioTrack,