test(scripted-alarms): cover bootstrap-restore path forwarding alarms (T10 review)

tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverHostActorTests.cs

@@ -157,6 +157,48 @@ public sealed class DriverHostActorTests : RuntimeActorTestBase
         plan.PredicateSource.ShouldContain("ctx.GetTag");
     }
 
+    /// <summary>Bootstrap-restore: a node that already has an <c>Applied</c> NodeDeploymentState
+    /// row for a ScriptedAlarm-carrying deployment re-forwards the
+    /// <see cref="ScriptedAlarmHostActor.ApplyScriptedAlarms"/> on PreStart (no dispatch needed), so a
+    /// restarted node restores its live ScriptedAlarm children.</summary>
+    [Fact]
+    public void Restore_on_bootstrap_forwards_EquipmentScriptedAlarms_to_scripted_alarm_host()
+    {
+        var db = NewInMemoryDbFactory();
+        var deploymentId = SeedDeploymentWithScriptedAlarm(db, RevA);
+
+        // Seed an Applied NodeDeploymentState row so Bootstrap() detects the Applied branch and
+        // calls RestoreApplied — no DispatchDeployment needed.
+        using (var ctx = db.CreateDbContext())
+        {
+            ctx.NodeDeploymentStates.Add(new Configuration.Entities.NodeDeploymentState
+            {
+                NodeId = TestNode.Value,
+                DeploymentId = deploymentId.Value,
+                Status = NodeDeploymentStatus.Applied,
+                StartedAtUtc = DateTime.UtcNow,
+                AppliedAtUtc = DateTime.UtcNow,
+            });
+            ctx.SaveChanges();
+        }
+
+        var coordinator = CreateTestProbe();
+        var alarmHost = CreateTestProbe();
+        // No DispatchDeployment — Bootstrap() should detect the Applied row and run RestoreApplied,
+        // which routes through PushDesiredSubscriptions and forwards ApplyScriptedAlarms.
+        Sys.ActorOf(DriverHostActor.Props(
+            db, TestNode, coordinator.Ref,
+            localRoles: new HashSet<string> { "driver" },
+            scriptedAlarmHostOverride: alarmHost.Ref));
+
+        var apply = alarmHost.ExpectMsg<ScriptedAlarmHostActor.ApplyScriptedAlarms>(TimeSpan.FromSeconds(5));
+        var plan = apply.Plans.ShouldHaveSingleItem();
+        plan.ScriptedAlarmId.ShouldBe("al-1");
+        plan.EquipmentId.ShouldBe("eq-1");
+        plan.Name.ShouldBe("Overheat");
+        plan.PredicateSource.ShouldContain("ctx.GetTag");
+    }
+
     private static DeploymentId SeedDeploymentWithScriptedAlarm(
         IDbContextFactory<OtOpcUaConfigDbContext> db, RevisionHash rev)
     {