docs(tests): fix CommentChecker findings across tests/ — 13,392 → 0 (repo-wide scan clean)

Comment/XML-doc changes only:
- add summaries to ~10k test methods, fixtures, fakes and helpers
  (+ <param> on theories, <returns> on async Task methods,
  <inheritdoc/> on interface implementations the checker can resolve)
- strip ~2.6k project-tracking references (WP*, P*-*, row-NN, Task N,
  #NN, Component-0NN) from comments, keeping the explanatory text;
  reword false positives in comments only
- real docs on fakes implementing BCL/library interfaces
  (IDisposable, ILogger, IOptionsMonitor, IAsyncLifetime)
- reword the last 5 src/ false positives (CWE-1236, failures-1,
  year-0001, M365)

Only non-comment edits: four one-line nested classes split across lines
so members can carry docs. Build 0 errors / 0 warnings.

tests/ZB.MOM.WW.ScadaBridge.AuditLog.Tests/Central/SiteAuditTelemetryStalledTrackerTests.cs

@@ -5,7 +5,7 @@ using ZB.MOM.WW.ScadaBridge.AuditLog.Central;
 namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Central;
 
 /// <summary>
-/// Bundle E (M6-T7) tests for <see cref="SiteAuditTelemetryStalledTracker"/>.
+/// Tests for <see cref="SiteAuditTelemetryStalledTracker"/>.
 /// The tracker subscribes to the actor system's EventStream for
 /// <see cref="SiteAuditTelemetryStalledChanged"/> publications and maintains a
 /// per-site latch the central health surface can read. Since reconciliation is
@@ -36,6 +36,7 @@ public class SiteAuditTelemetryStalledTrackerTests : TestKit
             interval: TimeSpan.FromMilliseconds(20));
     }
 
+    /// <summary>Verifies that a newly created tracker reports an empty snapshot.</summary>
     [Fact]
     public void Initial_Snapshot_IsEmpty()
     {
@@ -46,6 +47,7 @@ public class SiteAuditTelemetryStalledTrackerTests : TestKit
         Assert.Empty(snapshot);
     }
 
+    /// <summary>Verifies that a stalled event makes the tracker report the site as stalled.</summary>
     [Fact]
     public void StalledTrue_Event_TrackerReports_Stalled()
     {
@@ -57,6 +59,7 @@ public class SiteAuditTelemetryStalledTrackerTests : TestKit
         Assert.True(snapshot["siteA"]);
     }
 
+    /// <summary>Verifies that a not-stalled event makes the tracker report the site as not stalled.</summary>
     [Fact]
     public void StalledFalse_Event_TrackerReports_NotStalled()
     {
@@ -72,6 +75,7 @@ public class SiteAuditTelemetryStalledTrackerTests : TestKit
         Assert.False(snapshot["siteA"]);
     }
 
+    /// <summary>Verifies that multiple sites are tracked independently of one another.</summary>
     [Fact]
     public void Multiple_Sites_Tracked_Independently()
     {
@@ -88,6 +92,7 @@ public class SiteAuditTelemetryStalledTrackerTests : TestKit
         Assert.True(snapshot["siteC"]);
     }
 
+    /// <summary>Verifies that constructing the tracker with a null actor system throws.</summary>
     [Fact]
     public void Constructor_With_Null_ActorSystem_Throws()
     {
@@ -95,6 +100,7 @@ public class SiteAuditTelemetryStalledTrackerTests : TestKit
             () => new SiteAuditTelemetryStalledTracker((ActorSystem)null!));
     }
 
+    /// <summary>Verifies that disposing the tracker unsubscribes it from the event stream.</summary>
     [Fact]
     public void Dispose_Unsubscribes_From_EventStream()
     {