perf(runtime): split trigger evals from the blocking pool; bounded, deadline-aware execution

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

@@ -374,7 +374,7 @@ public class InstanceActor : ReceiveActor
     /// Fire-and-forget an <c>instance_lifecycle</c> operational event to the
     /// optional <see cref="ISiteEventLogger"/>. Resolved optionally and never
     /// awaited so a logging failure cannot affect the instance lifecycle
-    /// (matching the established ScriptActor/ScriptExecutionActor pattern).
+    /// (matching the established ScriptActor / script-run pattern).
     /// </summary>
     private void LogLifecycleEvent(string message)
     {
@@ -1666,8 +1666,8 @@ public class InstanceActor : ReceiveActor
         {
             Script<object?>? onTriggerScript = null;
             // The on-trigger script's per-script execution timeout,
-            // captured from its ResolvedScript so the AlarmExecutionActor can
-            // apply perScript ?? global. Null when there is no on-trigger script.
+            // captured from its ResolvedScript so the launched on-trigger run
+            // can apply perScript ?? global. Null when there is no on-trigger script.
             int? onTriggerTimeoutSeconds = null;
 
             // Compile on-trigger script if defined