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.DeploymentManager.Tests/DeploymentManagerOptionsValidatorTests.cs

@@ -15,6 +15,7 @@ public class DeploymentManagerOptionsValidatorTests
     private static ValidateOptionsResult Validate(DeploymentManagerOptions options) =>
         new DeploymentManagerOptionsValidator().Validate(Options.DefaultName, options);
 
+    /// <summary>Verifies that the default options pass validation.</summary>
     [Fact]
     public void DefaultOptions_AreValid()
     {
@@ -22,6 +23,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.True(result.Succeeded, result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero lifecycle command timeout is rejected.</summary>
     [Fact]
     public void ZeroLifecycleCommandTimeout_IsRejected()
     {
@@ -30,6 +32,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("LifecycleCommandTimeout", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a negative lifecycle command timeout is rejected.</summary>
     [Fact]
     public void NegativeLifecycleCommandTimeout_IsRejected()
     {
@@ -38,6 +41,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("LifecycleCommandTimeout", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero per-site artifact deployment timeout is rejected.</summary>
     [Fact]
     public void ZeroArtifactDeploymentTimeoutPerSite_IsRejected()
     {
@@ -46,6 +50,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("ArtifactDeploymentTimeoutPerSite", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero operation lock timeout is rejected.</summary>
     [Fact]
     public void ZeroOperationLockTimeout_IsRejected()
     {
@@ -54,6 +59,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("OperationLockTimeout", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero site deployment reconcile timeout is rejected.</summary>
     [Fact]
     public void ZeroSiteDeploymentReconcileTimeout_IsRejected()
     {
@@ -62,6 +68,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("SiteDeploymentReconcileTimeout", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a negative site deployment reconcile timeout is rejected.</summary>
     [Fact]
     public void NegativeSiteDeploymentReconcileTimeout_IsRejected()
     {
@@ -73,6 +80,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("SiteDeploymentReconcileTimeout", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a zero pending-updates cache TTL is rejected.</summary>
     [Fact]
     public void ZeroPendingUpdatesCacheTtl_IsRejected()
     {
@@ -84,6 +92,7 @@ public class DeploymentManagerOptionsValidatorTests
         Assert.Contains("PendingUpdatesCacheTtl", result.FailureMessage);
     }
 
+    /// <summary>Verifies that a negative pending-updates cache TTL is rejected.</summary>
     [Fact]
     public void NegativePendingUpdatesCacheTtl_IsRejected()
     {