feat(scripted-alarms): spawn + apply ScriptedAlarmHostActor in DriverHostActor (T10)

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/ServiceCollectionExtensions.cs

@@ -11,6 +11,7 @@ using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
 using ZB.MOM.WW.OtOpcUa.Configuration;
 using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 using ZB.MOM.WW.OtOpcUa.Core.AlarmHistorian;
+using ZB.MOM.WW.OtOpcUa.Core.Scripting;
 using ZB.MOM.WW.OtOpcUa.OpcUaServer;
 using ZB.MOM.WW.OtOpcUa.Runtime.Drivers;
 using ZB.MOM.WW.OtOpcUa.Runtime.Health;
@@ -90,6 +91,10 @@ public static class ServiceCollectionExtensions
             var serviceLevel = resolver.GetService<IServiceLevelPublisher>() ?? NullServiceLevelPublisher.Instance;
             var loggerFactory = resolver.GetService<ILoggerFactory>() ?? NullLoggerFactory.Instance;
             var healthPublisher = resolver.GetService<IDriverHealthPublisher>() ?? NullDriverHealthPublisher.Instance;
+            // Root script logger backs the ScriptedAlarm host's engine + script logging. Registered in
+            // Host DI inside the hasDriver block; may be absent in some role configs / test harnesses,
+            // in which case the DriverHostActor gracefully skips spawning the ScriptedAlarm host.
+            var scriptRootLogger = resolver.GetService<ScriptRootLogger>();
             // Production evaluator is the Host's RoslynVirtualTagEvaluator (registered as
             // IVirtualTagEvaluator); fall back to the null evaluator for test harnesses that don't
             // register one (VirtualTagActor children then evaluate to nothing).
@@ -131,7 +136,9 @@ public static class ServiceCollectionExtensions
                     dependencyMux: mux,
                     opcUaPublishActor: publishActor,
                     healthPublisher: healthPublisher,
-                    virtualTagEvaluator: virtualTagEvaluator),
+                    virtualTagEvaluator: virtualTagEvaluator,
+                    loggerFactory: loggerFactory,
+                    scriptRootLogger: scriptRootLogger),
                 DriverHostActorName);
             registry.Register<DriverHostActorKey>(driverHost);