docs(src): add missing XML docs and strip tracking-ID comments

Sweep of 203 source files resolving CommentChecker findings: add
<summary>/<param>/<returns>/<inheritdoc> where missing, and remove
resolved task/issue tracking markers (Tests-NNN, Worker-NNN, Server-NNN,
Task N) from code comments. Comment/doc-only — no logic changes.
Server+Tests build clean under TreatWarningsAsErrors.

src/ZB.MOM.WW.MxGateway.Worker.Tests/MxAccess/AlarmCommandExecutorTests.cs

@@ -371,28 +371,20 @@ public sealed class AlarmCommandExecutorTests
         /// <summary>Gets the last alarm filter prefix.</summary>
         public string? LastFilterPrefix { get; private set; }
 
-        /// <summary>Records a subscription.</summary>
-        /// <param name="command">The subscribe-alarms command.</param>
-        /// <param name="sessionId">The session identifier.</param>
+        /// <inheritdoc />
         public void Subscribe(SubscribeAlarmsCommand command, string sessionId)
         {
             LastSubscription = command.SubscriptionExpression;
             LastSessionId = sessionId;
         }
 
-        /// <summary>Records an unsubscribe request.</summary>
+        /// <inheritdoc />
         public void Unsubscribe()
         {
             UnsubscribeCalled = true;
         }
 
-        /// <summary>Records an acknowledge request.</summary>
-        /// <param name="alarmGuid">The alarm identifier.</param>
-        /// <param name="comment">The acknowledge comment.</param>
-        /// <param name="operatorUser">The operator user name.</param>
-        /// <param name="operatorNode">The operator node name.</param>
-        /// <param name="operatorDomain">The operator domain.</param>
-        /// <param name="operatorFullName">The operator full name.</param>
+        /// <inheritdoc />
         public int Acknowledge(
             Guid alarmGuid, string comment, string operatorUser,
             string operatorNode, string operatorDomain, string operatorFullName)
@@ -406,15 +398,7 @@ public sealed class AlarmCommandExecutorTests
             return AcknowledgeReturn;
         }
 
-        /// <summary>Records an acknowledge by name request.</summary>
-        /// <param name="alarmName">The alarm name.</param>
-        /// <param name="providerName">The provider name.</param>
-        /// <param name="groupName">The group name.</param>
-        /// <param name="comment">The acknowledge comment.</param>
-        /// <param name="operatorUser">The operator user name.</param>
-        /// <param name="operatorNode">The operator node name.</param>
-        /// <param name="operatorDomain">The operator domain.</param>
-        /// <param name="operatorFullName">The operator full name.</param>
+        /// <inheritdoc />
         public int AcknowledgeByName(
             string alarmName, string providerName, string groupName,
             string comment, string operatorUser, string operatorNode,
@@ -428,8 +412,7 @@ public sealed class AlarmCommandExecutorTests
         /// <summary>Gets the last acknowledge by name tuple.</summary>
         public (string Name, string Provider, string Group)? LastAckByNameTuple { get; private set; }
 
-        /// <summary>Queries the active alarms with the given filter prefix.</summary>
-        /// <param name="alarmFilterPrefix">The alarm filter prefix for the query.</param>
+        /// <inheritdoc />
         public IReadOnlyList<ActiveAlarmSnapshot> QueryActive(string? alarmFilterPrefix)
         {
             LastFilterPrefix = alarmFilterPrefix;
@@ -439,7 +422,7 @@ public sealed class AlarmCommandExecutorTests
         /// <summary>Gets the number of poll calls.</summary>
         public int PollCount { get; private set; }
 
-        /// <summary>Increments the poll count.</summary>
+        /// <inheritdoc />
         public void PollOnce()
         {
             PollCount++;