feat(audit): M5.2 per-node stuck-count KPIs (T6) — repo per-node aggregation, actor message pair, CentralUI tiles

tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/HealthPageTests.cs

@@ -13,6 +13,7 @@ using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Repositories;
 using ZB.MOM.WW.ScadaBridge.Commons.Messages.Audit;
 using ZB.MOM.WW.ScadaBridge.Commons.Messages.Notification;
 using ZB.MOM.WW.ScadaBridge.Commons.Types;
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Audit;
 using ZB.MOM.WW.ScadaBridge.Communication;
 using ZB.MOM.WW.ScadaBridge.HealthMonitoring;
 using HealthPage = ZB.MOM.WW.ScadaBridge.CentralUI.Components.Pages.Monitoring.Health;
@@ -232,13 +233,18 @@ public class HealthPageTests : BunitContext
 
     /// <summary>
     /// Stand-in for the Site Call Audit actor. Replies to the KPI request with
-    /// the test's currently-scripted response.
+    /// the test's currently-scripted response. Also handles the per-node KPI
+    /// request (T6: M5.2) with an empty-nodes success reply so the Health page
+    /// can complete initialization without a 30-second Ask timeout.
     /// </summary>
     private sealed class ScriptedSiteCallAuditActor : ReceiveActor
     {
         public ScriptedSiteCallAuditActor(HealthPageTests test)
         {
             Receive<SiteCallKpiRequest>(_ => Sender.Tell(test._siteCallKpiReply));
+            Receive<PerNodeSiteCallKpiRequest>(req => Sender.Tell(
+                new PerNodeSiteCallKpiResponse(req.CorrelationId, Success: true, ErrorMessage: null,
+                    Nodes: Array.Empty<SiteCallNodeKpiSnapshot>())));
         }
     }
 }