docs: strip task-tracking IDs from code comments and fill missing XML docs

Tracking IDs are review bookkeeping that rots in shipped source; the rationale they tagged is kept. Comment-only change (CommentChecker 458 -> 16 false positives).

src/ZB.MOM.WW.MxGateway.Tests/Alarms/GatewayAlarmMonitorAttachOrderTests.cs

@@ -13,7 +13,7 @@ using ZB.MOM.WW.MxGateway.Tests.TestSupport;
 namespace ZB.MOM.WW.MxGateway.Tests.Alarms;
 
 /// <summary>
-///     GWC-26 regression tests for the alarm monitor's startup ordering. Unlike the
+///     Regression tests for the alarm monitor's startup ordering. Unlike the
 ///     sibling alarm-monitor tests, the session manager here hands the monitor a REAL
 ///     <see cref="GatewaySession"/> that is driven to Ready with a dashboard mirror, so the
 ///     distributor pump is already running when the monitor attaches — the production
@@ -156,7 +156,7 @@ public sealed class GatewayAlarmMonitorAttachOrderTests
     }
 
     /// <summary>
-    ///     GWC-35: an acknowledged cached alarm followed by an active snapshot with a newer
+    ///     An acknowledged cached alarm followed by an active snapshot with a newer
     ///     original-raise timestamp is a new alarm instance, not an acknowledgement reversal. The
     ///     reconcile repair must broadcast a Raise carrying the incoming instance identity.
     /// </summary>
@@ -216,7 +216,7 @@ public sealed class GatewayAlarmMonitorAttachOrderTests
     }
 
     /// <summary>
-    ///     NEXT-03. A reconcile Raise repair applied while the matching live Raise is still
+    ///     A reconcile Raise repair applied while the matching live Raise is still
     ///     buffered must not double-broadcast: the live transition carrying the same worker
     ///     timestamp and resulting state the cache already holds is a duplicate and is suppressed.
     /// </summary>
@@ -275,7 +275,7 @@ public sealed class GatewayAlarmMonitorAttachOrderTests
     }
 
     /// <summary>
-    ///     NEXT-03, the Clear leg. A reconcile Clear repair removes the cache entry, so the
+    ///     The Clear leg of the dedup. A reconcile Clear repair removes the cache entry, so the
     ///     buffered live Clear is deduped through the tombstone keyed on the instance's original
     ///     raise timestamp — and a genuinely new raise/clear cycle is never swallowed.
     /// </summary>
@@ -490,7 +490,7 @@ public sealed class GatewayAlarmMonitorAttachOrderTests
         SourceProvider = AlarmProviderMode.Alarmmgr,
     };
 
-    // Snapshot carrying the worker-side identity markers the NEXT-03 dedup compares on.
+    // Snapshot carrying the worker-side identity markers the dedup compares on.
     private static ActiveAlarmSnapshot SnapshotAt(
         AlarmConditionState state,
         Timestamp lastTransition,
@@ -502,7 +502,7 @@ public sealed class GatewayAlarmMonitorAttachOrderTests
         return snapshot;
     }
 
-    // Live transition with explicit worker timestamps, for driving the NEXT-03 dedup.
+    // Live transition with explicit worker timestamps, for driving the dedup.
     private static MxEvent TransitionAt(
         ulong sequence,
         AlarmTransitionKind kind,