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/DeploymentStatusNotifierTests.cs

@@ -17,7 +17,7 @@ using ZB.MOM.WW.ScadaBridge.TemplateEngine.Flattening;
 namespace ZB.MOM.WW.ScadaBridge.DeploymentManager.Tests;
 
 /// <summary>
-/// CentralUI-006: regression tests proving <see cref="DeploymentService"/>
+/// Regression tests proving <see cref="DeploymentService"/>
 /// raises <see cref="IDeploymentStatusNotifier.StatusChanged"/> whenever it
 /// writes a deployment record's status. This is the event source the Central
 /// UI deployment-status page subscribes to instead of polling.
@@ -32,6 +32,7 @@ public class DeploymentStatusNotifierTests : TestKit
     private readonly DeploymentStatusNotifier _notifier;
     private readonly DeploymentService _service;
 
+    /// <summary>Initializes the test class with a notifier substitute and a deployment service wired to stubbed repositories.</summary>
     public DeploymentStatusNotifierTests()
     {
         _repo = Substitute.For<IDeploymentManagerRepository>();
@@ -48,7 +49,7 @@ public class DeploymentStatusNotifierTests : TestKit
             OperationLockTimeout = TimeSpan.FromSeconds(5)
         });
 
-        // DeploymentManager-021: the resolver now throws when the site row
+        // The resolver now throws when the site row
         // is missing, so seed the substitute to return a real-shaped Site for
         // any id these tests touch.
         var siteRepo = Substitute.For<ISiteRepository>();
@@ -63,13 +64,15 @@ public class DeploymentStatusNotifierTests : TestKit
             _repo, siteRepo, _pipeline, _comms, _lockManager, _audit,
             new DiffService(), new RevisionHashService(), _notifier,
             Substitute.For<IStaleInstanceProbe>(), options,
-            // Notify-and-fetch (Task 6): a non-empty CentralFetchBaseUrl lets the
+            // Notify-and-fetch: a non-empty CentralFetchBaseUrl lets the
             // deploy path reach the send (and, here, the catch block) rather than
             // tripping the fail-fast configuration guard.
             Options.Create(new CommunicationOptions { CentralFetchBaseUrl = "https://central.test:9000" }),
             NullLogger<DeploymentService>.Instance);
     }
 
+    /// <summary>Verifies that deploying an instance raises a status change for every deployment record status write.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task DeployInstanceAsync_RaisesStatusChange_ForEveryRecordStatusWrite()
     {
@@ -88,7 +91,7 @@ public class DeploymentStatusNotifierTests : TestKit
         // the record ends Failed. The notifier must fire for the InProgress
         // and Failed writes — not be silent (the pre-fix behaviour).
         //
-        // DeploymentManager-022: the transient Pending write was dropped from
+        // The transient Pending write was dropped from
         // the deploy path (the record is now created directly in InProgress),
         // so there is no Pending notification any more. The remaining two
         // writes — the initial InProgress insert and the catch-block Failed
@@ -108,6 +111,7 @@ public class DeploymentStatusNotifierTests : TestKit
         Assert.All(changes, c => Assert.Equal(deploymentId, c.DeploymentId));
     }
 
+    /// <summary>Verifies that notifying a status change with no subscribers does not throw.</summary>
     [Fact]
     public void NotifyStatusChanged_WithNoSubscribers_DoesNotThrow()
     {
@@ -119,6 +123,7 @@ public class DeploymentStatusNotifierTests : TestKit
         Assert.Null(ex);
     }
 
+    /// <summary>Verifies that a throwing subscriber does not prevent other subscribers from being notified.</summary>
     [Fact]
     public void NotifyStatusChanged_ThrowingSubscriber_DoesNotBreakOtherSubscribers()
     {