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.Host.Tests/AkkaBootstrapTests.cs

@@ -4,17 +4,19 @@ using Akka.Configuration;
 namespace ZB.MOM.WW.ScadaBridge.Host.Tests;
 
 /// <summary>
-/// WP-13: Tests for Akka.NET actor system bootstrap.
+/// Tests for Akka.NET actor system bootstrap.
 /// </summary>
 public class AkkaBootstrapTests : IDisposable
 {
     private ActorSystem? _actorSystem;
 
+    /// <summary>Releases the resources held by this test class.</summary>
     public void Dispose()
     {
         _actorSystem?.Dispose();
     }
 
+    /// <summary>Verifies that the actor system is created with the cluster configuration.</summary>
     [Fact]
     public void ActorSystem_CreatesWithClusterConfig()
     {
@@ -45,6 +47,7 @@ akka {
         Assert.Equal("scadabridge-test", _actorSystem.Name);
     }
 
+    /// <summary>Verifies that the HOCON configuration includes coordinated shutdown.</summary>
     [Fact]
     public void ActorSystem_HoconConfig_IncludesCoordinatedShutdown()
     {