refactor: remove ClusterClient streaming path (DebugStreamEvent), events flow via gRPC

src/ScadaLink.Communication/Actors/CentralCommunicationActor.cs

@@ -86,8 +86,6 @@ public class CentralCommunicationActor : ReceiveActor
         // Route enveloped messages to sites
         Receive<SiteEnvelope>(HandleSiteEnvelope);
 
-        // Route debug stream events from sites to the correct bridge actor
-        Receive<Commons.Messages.DebugView.DebugStreamEvent>(HandleDebugStreamEvent);
     }
 
     private void HandleHeartbeat(HeartbeatMessage heartbeat)
@@ -96,18 +94,6 @@ public class CentralCommunicationActor : ReceiveActor
         Context.Parent.Tell(heartbeat);
     }
 
-    private void HandleDebugStreamEvent(Commons.Messages.DebugView.DebugStreamEvent msg)
-    {
-        if (_debugSubscriptions.TryGetValue(msg.CorrelationId, out var entry))
-        {
-            entry.Subscriber.Tell(msg.Event);
-        }
-        else
-        {
-            _log.Debug("No debug subscription found for correlationId {0}, dropping event", msg.CorrelationId);
-        }
-    }
-
     private void HandleSiteHealthReport(SiteHealthReport report)
     {
         var aggregator = _serviceProvider.GetService<ICentralHealthAggregator>();