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.CentralUI.PlaywrightTests/Admin/ApiSurfaceFixture.cs

@@ -9,10 +9,15 @@ namespace ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests.Admin;
 /// </summary>
 public sealed class ApiSurfaceFixture : IAsyncLifetime
 {
+    /// <summary>The id of the provisioned inbound API method.</summary>
     public int MethodId { get; private set; }
+    /// <summary>The unique name of the provisioned inbound API method.</summary>
     public string MethodName { get; private set; } = string.Empty;
+    /// <summary>Whether the cluster was reachable and the method was provisioned.</summary>
     public bool Available { get; private set; }
 
+    /// <summary>Prepares the test class before the tests run.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task InitializeAsync()
     {
         Available = await ClusterAvailability.IsAvailableAsync();
@@ -39,6 +44,8 @@ public sealed class ApiSurfaceFixture : IAsyncLifetime
         }
     }
 
+    /// <summary>Releases the resources held by this test class asynchronously.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task DisposeAsync()
     {
         if (Available)