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.NotificationService.Tests/NotificationOptionsValidatorTests.cs

@@ -13,6 +13,7 @@ public class NotificationOptionsValidatorTests
     private static ValidateOptionsResult Validate(NotificationOptions options) =>
         new NotificationOptionsValidator().Validate(Options.DefaultName, options);
 
+    /// <summary>Verifies that the default options pass validation.</summary>
     [Fact]
     public void DefaultOptions_AreValid()
     {
@@ -20,6 +21,7 @@ public class NotificationOptionsValidatorTests
         Assert.True(result.Succeeded, result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero connection timeout is rejected.</summary>
     [Fact]
     public void ZeroConnectionTimeoutSeconds_IsRejected()
     {
@@ -29,6 +31,7 @@ public class NotificationOptionsValidatorTests
         Assert.Contains("ConnectionTimeoutSeconds", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a negative connection timeout is rejected.</summary>
     [Fact]
     public void NegativeConnectionTimeoutSeconds_IsRejected()
     {
@@ -38,6 +41,7 @@ public class NotificationOptionsValidatorTests
         Assert.Contains("ConnectionTimeoutSeconds", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero maximum concurrent connection count is rejected.</summary>
     [Fact]
     public void ZeroMaxConcurrentConnections_IsRejected()
     {
@@ -47,6 +51,7 @@ public class NotificationOptionsValidatorTests
         Assert.Contains("MaxConcurrentConnections", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a negative maximum concurrent connection count is rejected.</summary>
     [Fact]
     public void NegativeMaxConcurrentConnections_IsRejected()
     {