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.Tests/ScriptAnalysis/SandboxWorkerIsolationTests.cs

@@ -10,6 +10,8 @@ namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.ScriptAnalysis;
 [Collection("Sandbox worker processes")]
 public class SandboxWorkerIsolationTests
 {
+    /// <summary>Verifies that four busy workers reject a queued fifth request without starting another process.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task FourBusyWorkers_RejectQueuedFifthWithoutStartingAnotherProcess()
     {
@@ -36,6 +38,8 @@ public class SandboxWorkerIsolationTests
         foreach (var result in await Task.WhenAll(workers)) Assert.True(result.Success, result.Error);
     }
 
+    /// <summary>Verifies that an uncooperative broker still has its child killed at the deadline and keeps the lifetime until the broker completes.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task UncooperativeBroker_StillKillsChildAtDeadline_AndKeepsLifetimeUntilBrokerCompletes()
     {
@@ -63,6 +67,8 @@ public class SandboxWorkerIsolationTests
         child?.Dispose();
     }
 
+    /// <summary>Verifies that a non-cooperative worker is terminated and its capacity can be reused.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task NoncooperativeWorker_IsTerminated_AndCapacityCanBeReused()
     {