fix update status plate user

frontend/src/pages/UserDashboard.jsx

@@ -24,11 +24,13 @@ function UserDashboard({ token, username }) {
         });
 
         // Real-time status updates
+        socket.on('new_plate_registered', () => fetchPlates()); // Sync when plate added
         socket.on('plate_status_updated', () => fetchPlates());
         socket.on('people_updated', () => fetchPeople());
 
         return () => {
             socket.off('new_detection');
+            socket.off('new_plate_registered');
             socket.off('plate_status_updated');
             socket.off('people_updated');
         };
@@ -39,10 +41,8 @@ function UserDashboard({ token, username }) {
             const res = await axios.get(`${API_URL}/api/plates`, {
                 headers: { Authorization: `Bearer ${token}` }
             });
-            // Filter plates added by this user (if backend doesn't filter, we filter here)
-            // Note: Backend currently returns ALL plates. We can filter on client for now.
-            const myPlates = res.data.filter(p => p.addedBy?.username === username);
-            setPlates(myPlates);
+            // Backend already filters by user, so use data directly
+            setPlates(res.data);
         } catch (err) {
             console.error(err);
         }