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.LoadHarness/Metrics/ResourceSampler.cs

@@ -10,7 +10,7 @@ namespace ZB.MOM.WW.ScadaBridge.LoadHarness.Metrics;
 /// <param name="ManagedHeapMb"><see cref="GC.GetTotalMemory(bool)"/> without forcing a collection.</param>
 /// <param name="CpuPercent">Mean CPU utilization since the previous sample, as a percentage of ONE core.</param>
 /// <param name="ThreadCount">OS threads in the process.</param>
-/// <param name="Gen2Collections">Cumulative gen-2 collections.</param>
+/// <param name="Gen2Collections">Cumulative generation 2 collections.</param>
 public sealed record ResourceSample(
     double ElapsedSeconds,
     double WorkingSetMb,
@@ -150,7 +150,8 @@ public sealed class ResourceSampler : IAsyncDisposable
 
     private int _disposed;
 
-    /// <inheritdoc />
+    /// <summary>Stops the sampling loop and releases the sampler's resources.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async ValueTask DisposeAsync()
     {
         if (Interlocked.Exchange(ref _disposed, 1) != 0)
@@ -184,7 +185,7 @@ public sealed class ResourceSampler : IAsyncDisposable
 /// <param name="MeanCpuPercentOfOneCore">Mean CPU as a percentage of one core (1400% = 14 cores saturated).</param>
 /// <param name="PeakCpuPercentOfOneCore">Peak single-sample CPU as a percentage of one core.</param>
 /// <param name="MeanThreadCount">Mean OS thread count.</param>
-/// <param name="Gen2Collections">Gen-2 collections during the window.</param>
+/// <param name="Gen2Collections">Generation 2 collections during the window.</param>
 public sealed record ResourceWindowSummary(
     int SampleCount,
     double DurationSeconds,