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/Deployment/FlowDebuggerFixture.cs

@@ -39,7 +39,8 @@ public sealed class FlowDebuggerFixture : IAsyncLifetime
     /// <summary>Name of the ephemeral inbound method (its <c>POST /api/{name}</c> segment).</summary>
     public string MethodName { get; private set; } = string.Empty;
 
-    /// <inheritdoc/>
+    /// <summary>Probes cluster availability and, when available, creates the ephemeral inbound method used by the tests.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task InitializeAsync()
     {
         Available = await ClusterAvailability.IsAvailableAsync();
@@ -69,7 +70,8 @@ public sealed class FlowDebuggerFixture : IAsyncLifetime
         }
     }
 
-    /// <inheritdoc/>
+    /// <summary>Deletes the ephemeral inbound method if one was created.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public Task DisposeAsync() =>
         MethodId > 0 ? CliRunner.DeleteApiMethodAsync(MethodId) : Task.CompletedTask;
 }