refactor: optimize socket connection handling by removing polling transport and implementing lazy connection strategy in SocketManager for improved performance

src/components/header/CategoryList.js

@@ -181,8 +181,6 @@ class CategoryList extends Component {
   fetchCategories = () => {
     const { socket } = this.props;
     if (!socket || !socket.connected) {
-      // Socket not connected yet, but don't show error immediately on first load
-      // The componentDidUpdate will retry when socket connects
       console.log("Socket not connected yet, waiting for connection to fetch categories");
       return;
     }