remove logout button from ui

web/src/App.tsx

@@ -891,11 +891,6 @@ export default function App() {
     }
   };
 
-  const handleLogout = () => {
-    setContextMenu(null);
-    logout();
-    resetWorkspaceState();
-  };
 
   if (isCheckingSession) {
     return (
@@ -1014,10 +1009,6 @@ export default function App() {
                   Search mode
                 </div>
               )}
-              <Button variant="outline" size="sm" onClick={handleLogout}>
-                <LogOut className="mr-1 h-4 w-4" />
-                Logout
-              </Button>
             </div>
           </header>