fix: multiple bug fixes

isolated users, db backup, weird disconnect issues for long voice sessions,

toju-app/src/app/store/users/users-status.reducer.spec.ts

@@ -235,6 +235,71 @@ describe('users reducer - status', () => {
       // The buildPresenceAwareUser function takes incoming status when non-offline
       expect(state.entities['u1']?.status).toBe('online');
     });
+
+    it('preserves omitted live peer presence and voice state during stale server snapshot', () => {
+      const remoteUser = createUser({
+        id: 'u2',
+        oderId: 'u2',
+        displayName: 'Voice Peer',
+        presenceServerIds: ['s1'],
+        voiceState: {
+          isConnected: true,
+          isMuted: false,
+          isDeafened: false,
+          isSpeaking: true,
+          roomId: 'voice-1',
+          serverId: 's1'
+        },
+        cameraState: { isEnabled: true },
+        screenShareState: { isSharing: true }
+      });
+      const withUser = usersReducer(baseState, UsersActions.userJoined({ user: remoteUser }));
+      const state = usersReducer(withUser, UsersActions.syncServerPresence({
+        roomId: 's1',
+        users: [],
+        connectedPeerIds: ['u2']
+      }));
+
+      expect(state.entities['u2']?.presenceServerIds).toEqual(['s1']);
+      expect(state.entities['u2']?.isOnline).toBe(true);
+      expect(state.entities['u2']?.voiceState?.isConnected).toBe(true);
+      expect(state.entities['u2']?.voiceState?.roomId).toBe('voice-1');
+      expect(state.entities['u2']?.cameraState?.isEnabled).toBe(true);
+      expect(state.entities['u2']?.screenShareState?.isSharing).toBe(true);
+    });
+
+    it('clears omitted peer live state when transport is gone', () => {
+      const remoteUser = createUser({
+        id: 'u3',
+        oderId: 'u3',
+        displayName: 'Dropped Peer',
+        presenceServerIds: ['s1'],
+        voiceState: {
+          isConnected: true,
+          isMuted: false,
+          isDeafened: false,
+          isSpeaking: true,
+          roomId: 'voice-1',
+          serverId: 's1'
+        },
+        cameraState: { isEnabled: true },
+        screenShareState: { isSharing: true }
+      });
+      const withUser = usersReducer(baseState, UsersActions.userJoined({ user: remoteUser }));
+      const state = usersReducer(withUser, UsersActions.syncServerPresence({
+        roomId: 's1',
+        users: [],
+        connectedPeerIds: []
+      }));
+
+      expect(state.entities['u3']?.presenceServerIds).toBeUndefined();
+      expect(state.entities['u3']?.isOnline).toBe(false);
+      expect(state.entities['u3']?.status).toBe('offline');
+      expect(state.entities['u3']?.voiceState?.isConnected).toBe(false);
+      expect(state.entities['u3']?.voiceState?.roomId).toBeUndefined();
+      expect(state.entities['u3']?.cameraState?.isEnabled).toBe(false);
+      expect(state.entities['u3']?.screenShareState?.isSharing).toBe(false);
+    });
   });
 
   describe('manual status overrides auto idle', () => {