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.AdminUI/Hubs/AlertSignalRBridge.cs

@@ -25,6 +25,7 @@ public sealed class AlertSignalRBridge : ReceiveActor
     /// </summary>
     /// <param name="hub">The SignalR hub context to send alerts to.</param>
     /// <param name="broadcaster">In-process fan-out read directly by the Blazor Server Alerts page.</param>
+    /// <returns>The Akka <see cref="Akka.Actor.Props"/> for creating this actor.</returns>
     public static Props Props(IHubContext<AlertHub> hub, IInProcessBroadcaster<AlarmTransitionEvent> broadcaster) =>
         Akka.Actor.Props.Create(() => new AlertSignalRBridge(hub, broadcaster));