fix(dcl): verify-endpoint probe logs through a real logger so first-time OPC UA app-cert creation is visible (#121)

The site's DataConnectionManagerActor handed VerifyEndpointAsync a NullLogger. A secured
probe is usually what first creates a node's application certificate, so the creation
Warning carrying the thumbprint every server must trust was silently discarded (found on the
rig live gate). The actor takes an optional probe logger; the Host supplies one. Test pins
creation logged once (Warning, thumbprint), not on reuse.

src/ZB.MOM.WW.ScadaBridge.Host/Actors/AkkaHostedService.cs

@@ -872,7 +872,9 @@ akka {{
                 ?? new ZB.MOM.WW.ScadaBridge.DataConnectionLayer.OpcUaGlobalOptions();
             dclManager = _actorSystem!.ActorOf(
                 Props.Create(() => new ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Actors.DataConnectionManagerActor(
-                    dclFactory, dclOptions, healthCollector, siteEventLogger, opcUaGlobalOptions)),
+                    dclFactory, dclOptions, healthCollector, siteEventLogger, opcUaGlobalOptions,
+                    _serviceProvider.GetRequiredService<ILoggerFactory>()
+                        .CreateLogger("ZB.MOM.WW.ScadaBridge.DataConnectionLayer.VerifyEndpoint"))),
                 "dcl-manager");
             _logger.LogInformation("Data Connection Layer manager actor created");
         }