Fix flickering issues due to reconnecting loop

lib/providers/realtime_controller.dart

@@ -94,8 +94,12 @@ class RealtimeController extends ChangeNotifier {
   /// Convenience callback suitable for [StreamRecoveryWrapper.onStatusChanged].
   ///
   /// Routes [StreamConnectionStatus] to the appropriate mark method.
+  /// Both `connected` and `polling` are treated as "recovered" because
+  /// polling is a functional fallback that still delivers data — the user
+  /// doesn't need to see a reconnection indicator while data flows via REST.
   void handleChannelStatus(String channel, StreamConnectionStatus status) {
-    if (status == StreamConnectionStatus.connected) {
+    if (status == StreamConnectionStatus.connected ||
+        status == StreamConnectionStatus.polling) {
       markChannelRecovered(channel);
     } else {
       markChannelRecovering(channel);