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/ScriptedAlarms/ScriptedAlarmHostActor.cs

@@ -130,6 +130,7 @@ public sealed class ScriptedAlarmHostActor : ReceiveActor
     /// <param name="localNode">The local cluster node id, used to read this node's <see cref="RedundancyRole"/>
     /// from the <c>redundancy-state</c> topic so only the Primary publishes the cluster-wide <c>alerts</c>
     /// transition. Null (the default) leaves the role unknown ⇒ default-emit (single-node deploys + tests).</param>
+    /// <returns>The <see cref="Akka.Actor.Props"/> used to instantiate the actor.</returns>
     public static Props Props(
         IActorRef publishActor,
         IActorRef? mux,