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.Commons.Tests/Messages/NativeAlarmMessagesTests.cs

@@ -6,6 +6,7 @@ namespace ZB.MOM.WW.ScadaBridge.Commons.Tests.Messages;
 
 public class NativeAlarmMessagesTests
 {
+    /// <summary>Verifies that subscribe alarms request: carries source and filter.</summary>
     [Fact]
     public void SubscribeAlarmsRequest_CarriesSourceAndFilter()
     {
@@ -14,6 +15,7 @@ public class NativeAlarmMessagesTests
         Assert.Null(r.ConditionFilter);
     }
 
+    /// <summary>Verifies that native alarm transition update: wraps transition.</summary>
     [Fact]
     public void NativeAlarmTransitionUpdate_WrapsTransition()
     {
@@ -25,6 +27,7 @@ public class NativeAlarmMessagesTests
         Assert.Equal("Tank01", u.Transition.SourceObjectReference);
     }
 
+    /// <summary>Verifies that native alarm transition, when ack time, is an additive trailing parameter.</summary>
     [Fact]
     public void NativeAlarmTransition_AckTime_IsAnAdditiveTrailingParameter()
     {