docs(xmldoc): fill missing XML docs + strip tracking-ID comments across src

Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/OpcUa/OpcUaPublishActor.cs

@@ -17,7 +17,7 @@ namespace ZB.MOM.WW.OtOpcUa.Runtime.OpcUa;
 
 /// <summary>
 ///     Single-threaded bridge between Akka messages and the OPC UA SDK address space. Hosted on
-///     the pinned <c>opcua-synchronized-dispatcher</c> (Task 19 HOCON) so the OPC UA SDK sees
+///     the pinned <c>opcua-synchronized-dispatcher</c> (HOCON) so the OPC UA SDK sees
 ///     only one thread per actor instance — its session/subscription locks expect strict
 ///     single-threaded access.
 ///
@@ -121,6 +121,8 @@ public sealed class OpcUaPublishActor : ReceiveActor, IWithTimers
     /// <param name="healthTickInterval">The period between self-driven DB-health refresh ticks (each
     /// Asks <paramref name="dbHealthProbe"/> for its cached status); defaults to 5 seconds. No timer is
     /// started when <paramref name="dbHealthProbe"/> is null.</param>
+    /// <returns>The configured <see cref="Props"/> for creating this actor, pinned to the
+    /// <see cref="DispatcherId"/> dispatcher.</returns>
     public static Props Props(
         IOpcUaAddressSpaceSink? sink = null,
         IServiceLevelPublisher? serviceLevel = null,
@@ -161,6 +163,8 @@ public sealed class OpcUaPublishActor : ReceiveActor, IWithTimers
     /// <param name="healthTickInterval">The period between self-driven DB-health refresh ticks (each
     /// Asks <paramref name="dbHealthProbe"/> for its cached status); defaults to 5 seconds. No timer is
     /// started when <paramref name="dbHealthProbe"/> is null.</param>
+    /// <returns>The configured <see cref="Props"/> for creating this actor in tests, without dispatcher
+    /// pinning or the DPS subscribe.</returns>
     public static Props PropsForTests(
         IOpcUaAddressSpaceSink? sink = null,
         IServiceLevelPublisher? serviceLevel = null,
@@ -331,9 +335,6 @@ public sealed class OpcUaPublishActor : ReceiveActor, IWithTimers
             var outcome = _applier.Apply(plan);
             _lastApplied = composition;
 
-            // #85 — after the plan diff lands, rebuild the UNS folder hierarchy so OPC UA
-            // clients see Area/Line/Equipment as proper folders. Idempotent; AddressSpaceApplier
-            // skips folders that already exist with the same node id.
             _applier.MaterialiseHierarchy(composition);
             // T14 — scripted alarms get their own pass right after the hierarchy so the equipment
             // folders they parent under already exist. Materialises real Part 9 AlarmConditionState