fix(v3-batch4): thread ReferencingEquipmentPaths into native AlarmTransitionEvent

Closes the WP3/WP4 boundary seam WP4 flagged: ForwardNativeAlarm (DriverHostActor,
a WP3-owned file WP4 could not edit) built the AlarmTransitionEvent without the
referencing-equipment paths, so the /alerts equipment-list chips WP4 added never
populated in production (would fail live-gate leg 5). The RawTagPlan already carries
ReferencingEquipmentPaths (the Area/Line/Equipment UNS folder paths); this rides them
onto the per-condition alarm meta and into every transition. Coordinator-owned
1-file change (WP3 merged, no parallel agent owns this file this wave).

Claude-Session: https://claude.ai/code/session_01LVneM3eh1UtJxEisFXgmox

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DriverHostActor.cs

@@ -171,7 +171,7 @@ public sealed class DriverHostActor : ReceiveActor, IWithTimers
     /// <c>TagConfig.alarm.historizeToAveva</c>; it is threaded onto the transition so the
     /// HistorianAdapterActor's <c>is not false</c> gate suppresses the durable AVEVA row only on an
     /// explicit false (mirroring the scripted-alarm opt-out).</summary>
-    private readonly Dictionary<string, (string EquipmentId, string Name, string AlarmType, bool? HistorizeToAveva)> _alarmMetaByNodeId =
+    private readonly Dictionary<string, (string EquipmentId, string Name, string AlarmType, bool? HistorizeToAveva, IReadOnlyList<string> ReferencingEquipmentPaths)> _alarmMetaByNodeId =
         new(StringComparer.Ordinal);
 
     /// <summary>Derives a full Part 9 condition snapshot from each native alarm transition delta,
@@ -1048,7 +1048,8 @@ public sealed class DriverHostActor : ReceiveActor, IWithTimers
             if (!serviceAlertsAsPrimary) continue;
 
             var meta = _alarmMetaByNodeId.TryGetValue(nodeId, out var m)
-                ? m : (EquipmentId: nodeId, Name: nodeId, AlarmType: "AlarmCondition", HistorizeToAveva: (bool?)null);
+                ? m : (EquipmentId: nodeId, Name: nodeId, AlarmType: "AlarmCondition", HistorizeToAveva: (bool?)null,
+                    ReferencingEquipmentPaths: (IReadOnlyList<string>)Array.Empty<string>());
             _mediator.Tell(new Publish(ScriptedAlarmHostActor.AlertsTopic, new AlarmTransitionEvent(
                 AlarmId: nodeId,
                 EquipmentPath: meta.EquipmentId,
@@ -1068,7 +1069,10 @@ public sealed class DriverHostActor : ReceiveActor, IWithTimers
                 // historize). The HistorianAdapterActor gate (historizeToAveva is not false) historizes null +
                 // true and suppresses the durable AVEVA row only on an explicit false — the same posture as the
                 // scripted-alarm opt-out. null here rides through unchanged (the gate treats it as default-on).
-                HistorizeToAveva: meta.HistorizeToAveva)));
+                HistorizeToAveva: meta.HistorizeToAveva,
+                // WP4: the Area/Line/Equipment UNS paths that reference this raw condition — the /alerts row
+                // renders them as the equipment list (empty for a raw condition no equipment references yet).
+                ReferencingEquipmentPaths: meta.ReferencingEquipmentPaths)));
         }
     }
 
@@ -1573,8 +1577,10 @@ public sealed class DriverHostActor : ReceiveActor, IWithTimers
                 // Inverse 1:1 map for the inbound native-condition ack path (keyed by BARE condition NodeId).
                 _driverRefByAlarmNodeId[t.NodeId] = key;
                 // Per-condition metadata for the alerts fan-out. WP4 refines /alerts identity to the referencing
-                // equipment paths; WP3 keys the display off the RawPath.
+                // equipment paths; WP3 keys the display off the RawPath. The referencing-equipment paths (the
-                _alarmMetaByNodeId[t.NodeId] = (t.NodeId, t.Name, t.Alarm.AlarmType, t.Alarm.HistorizeToAveva);
+                // Area/Line/Equipment UNS folder paths carried on the RawTagPlan) ride onto every transition so
+                // the /alerts row lists which equipment reference this raw condition.
+                _alarmMetaByNodeId[t.NodeId] = (t.NodeId, t.Name, t.Alarm.AlarmType, t.Alarm.HistorizeToAveva, t.ReferencingEquipmentPaths);
                 continue;
             }