refactor(browse): rename BrowseOpcUaNode* to protocol-agnostic BrowseNode*

Renames BrowseOpcUaNodeCommand/Result -> BrowseNodeCommand/Result and
CommunicationService.BrowseOpcUaNodeAsync -> BrowseNodeAsync across Commons,
Communication, SiteRuntime, DCL actors, and CentralUI. Wire manifest name
follows (BrowseOpcUaNode -> BrowseNode). Browse regression tests green.

src/ZB.MOM.WW.ScadaBridge.SiteRuntime/Actors/DeploymentManagerActor.cs

@@ -149,12 +149,12 @@ public class DeploymentManagerActor : ReceiveActor, IWithTimers
         Receive<RouteToSetAttributesRequest>(RouteInboundApiSetAttributes);
 
         // OPC UA Tag Browser — singleton-only re-forward to local /user/dcl-manager.
-        // BrowseOpcUaNodeCommand is routed to this singleton (active node) by
+        // BrowseNodeCommand is routed to this singleton (active node) by
         // SiteCommunicationActor so the dcl-manager we forward to is guaranteed
         // to be the one holding the live DataConnectionActor children. ActorSelection
         // has no Forward() extension in this Akka.NET version, so we Tell with the
         // original Sender preserved (semantically identical to Forward).
-        Receive<BrowseOpcUaNodeCommand>(msg =>
+        Receive<BrowseNodeCommand>(msg =>
             Context.ActorSelection("/user/dcl-manager").Tell(msg, Sender));
 
         // Test Bindings — same singleton-only re-forward as the browse handler