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/Core/ZB.MOM.WW.OtOpcUa.Core/Resilience/AlarmSurfaceInvoker.cs

@@ -8,7 +8,7 @@ namespace ZB.MOM.WW.OtOpcUa.Core.Resilience;
 ///     <see cref="IAlarmSource.AcknowledgeAsync"/>) through <see cref="CapabilityInvoker"/> so the
 ///     Phase 6.1 resilience pipeline runs — retry semantics match
 ///     <see cref="DriverCapability.AlarmSubscribe"/> (retries by default) and
-///     <see cref="DriverCapability.AlarmAcknowledge"/> (does NOT retry per decision #143).
+///     <see cref="DriverCapability.AlarmAcknowledge"/> (does NOT retry).
 /// </summary>
 /// <remarks>
 ///     <para>Multi-host dispatch: when the driver implements <see cref="IPerCallHostResolver"/>,
@@ -59,6 +59,7 @@ public sealed class AlarmSurfaceInvoker
     /// </summary>
     /// <param name="sourceNodeIds">The source node IDs to subscribe to.</param>
     /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>One subscription handle per resolved host.</returns>
     public async Task<IReadOnlyList<IAlarmSubscriptionHandle>> SubscribeAsync(
         IReadOnlyList<string> sourceNodeIds,
         CancellationToken cancellationToken)
@@ -89,6 +90,7 @@ public sealed class AlarmSurfaceInvoker
     /// </summary>
     /// <param name="handle">The subscription handle to unsubscribe.</param>
     /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public ValueTask UnsubscribeAsync(IAlarmSubscriptionHandle handle, CancellationToken cancellationToken)
     {
         ArgumentNullException.ThrowIfNull(handle);
@@ -105,11 +107,12 @@ public sealed class AlarmSurfaceInvoker
 
     /// <summary>
     ///     Acknowledge alarms. Fans out by resolved host; each host's batch runs through the
-    ///     AlarmAcknowledge pipeline (no-retry per decision #143 — an alarm-ack is not idempotent
+    ///     AlarmAcknowledge pipeline (no-retry — an alarm-ack is not idempotent
     ///     at the plant-floor acknowledgement level even if the OPC UA spec permits re-issue).
     /// </summary>
     /// <param name="acknowledgements">The alarm acknowledgement requests.</param>
     /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task AcknowledgeAsync(
         IReadOnlyList<AlarmAcknowledgeRequest> acknowledgements,
         CancellationToken cancellationToken)
@@ -161,7 +164,7 @@ public sealed class AlarmSurfaceInvoker
         public IAlarmSubscriptionHandle Inner { get; } = inner;
         /// <summary>Gets the resolved host name.</summary>
         public string Host { get; } = host;
-        /// <summary>Gets the diagnostic ID from the inner handle.</summary>
+        /// <inheritdoc />
         public string DiagnosticId => Inner.DiagnosticId;
     }
 }