v0.10.7 UI rule changes

frontend/src/contexts/SocketContext.jsx

@@ -42,6 +42,11 @@ export function SocketProvider({ children }) {
     socket.on('user:online', ({ userId }) => setOnlineUsers(prev => new Set([...prev, userId])));
     socket.on('user:offline', ({ userId }) => setOnlineUsers(prev => { const s = new Set(prev); s.delete(userId); return s; }));
 
+    // Session displaced: another login on the same device type has kicked this session
+    socket.on('session:displaced', () => {
+      window.dispatchEvent(new CustomEvent('jama:session-displaced'));
+    });
+
     // Bug B fix: when app returns to foreground, force socket reconnect if disconnected
     const handleVisibilityChange = () => {
       if (document.visibilityState === 'visible') {