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.Tests/Gateway/Dashboard/DashboardBrowseAndAlarmModelTests.cs

@@ -171,13 +171,11 @@ public sealed class DashboardBrowseAndAlarmModelTests
         Assert.True(model.IsDegraded);
         Assert.Contains("bg-warning", model.BadgeCssClass, StringComparison.Ordinal);
         Assert.Equal("x", model.Reason);
-        // Tests-033: pin the amber label text, not just the CSS class — a label swap
-        // would otherwise pass this test.
         Assert.Equal(DashboardAlarmProviderStatus.DegradedLabel, model.Label);
     }
 
     /// <summary>
-    ///     Tests-033: an explicitly-degraded status whose mode is still Alarmmgr (the
+    ///     An explicitly-degraded status whose mode is still Alarmmgr (the
     ///     <c>Degraded || Mode==Subtag</c> guard's second, independent branch) must still
     ///     map to the degraded amber badge.
     /// </summary>
@@ -199,7 +197,7 @@ public sealed class DashboardBrowseAndAlarmModelTests
     }
 
     /// <summary>
-    ///     Tests-033: the <c>SinceUtc</c> field must carry the protobuf <c>Since</c>
+    ///     The <c>SinceUtc</c> field must carry the protobuf <c>Since</c>
     ///     timestamp converted to a <see cref="DateTimeOffset" />.
     /// </summary>
     [Fact]
@@ -220,7 +218,7 @@ public sealed class DashboardBrowseAndAlarmModelTests
     }
 
     /// <summary>
-    ///     Tests-033: <see cref="DashboardAlarmProviderStatus.FromFeed" /> — the entry the
+    ///     <see cref="DashboardAlarmProviderStatus.FromFeed" /> — the entry the
     ///     dashboard SignalR snapshot path actually calls — projects a provider-status
     ///     feed message into the badge model.
     /// </summary>
@@ -246,7 +244,7 @@ public sealed class DashboardBrowseAndAlarmModelTests
     }
 
     /// <summary>
-    ///     Tests-033: <see cref="DashboardAlarmProviderStatus.FromFeed" /> throws
+    ///     <see cref="DashboardAlarmProviderStatus.FromFeed" /> throws
     ///     <see cref="ArgumentException" /> when the feed message does not carry a
     ///     provider-status payload.
     /// </summary>