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/ServiceCollectionExtensionsTests.cs

@@ -5,7 +5,7 @@ using Microsoft.Extensions.Options;
 namespace ZB.MOM.WW.ScadaBridge.DeploymentManager.Tests;
 
 /// <summary>
-/// DeploymentManager-008: DeploymentManagerOptions must be resolvable via the
+/// DeploymentManagerOptions must be resolvable via the
 /// Options pattern and bindable to the "ScadaBridge:DeploymentManager"
 /// configuration section. The component itself does not depend on
 /// IConfiguration (enforced by Host's OptionsTests) — the Host binds the
@@ -13,6 +13,7 @@ namespace ZB.MOM.WW.ScadaBridge.DeploymentManager.Tests;
 /// </summary>
 public class ServiceCollectionExtensionsTests
 {
+    /// <summary>Verifies that AddDeploymentManager registers resolvable options with default values.</summary>
     [Fact]
     public void AddDeploymentManager_RegistersResolvableOptions_WithDefaults()
     {
@@ -26,6 +27,7 @@ public class ServiceCollectionExtensionsTests
         Assert.Equal(TimeSpan.FromSeconds(5), options.OperationLockTimeout);
     }
 
+    /// <summary>Verifies that the options bind to the configuration section the way the host wires them.</summary>
     [Fact]
     public void AddDeploymentManager_OptionsBindToConfigurationSection_AsTheHostWires()
     {
@@ -51,16 +53,18 @@ public class ServiceCollectionExtensionsTests
         Assert.Equal(TimeSpan.FromMinutes(3), options.ArtifactDeploymentTimeoutPerSite);
     }
 
+    /// <summary>Verifies that the options section name matches the conventional component section path.</summary>
     [Fact]
     public void OptionsSection_MatchesTheConventionalComponentSectionPath()
     {
         Assert.Equal("ScadaBridge:DeploymentManager", ServiceCollectionExtensions.OptionsSection);
     }
 
-    // CentralUI-006: the deployment-status notifier must be a singleton so the
+    // The deployment-status notifier must be a singleton so the
     // scoped DeploymentService and the Central UI's scoped Blazor page share
     // one instance — without that, a push notification raised by the service
     // would never reach the page's subscription.
+    /// <summary>Verifies that AddDeploymentManager registers the deployment status notifier as a singleton.</summary>
     [Fact]
     public void AddDeploymentManager_RegistersDeploymentStatusNotifier_AsSingleton()
     {