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.AuditLog.Tests/Integration/Infrastructure/CombinedTelemetryHarness.cs

@@ -21,7 +21,7 @@ using ZB.MOM.WW.ScadaBridge.SiteRuntime.Tracking;
 namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Integration.Infrastructure;
 
 /// <summary>
-/// Shared end-to-end harness for the M3 cached-call combined telemetry tests
+/// Shared end-to-end harness for the cached-call combined telemetry tests
 /// (G2/G3/G4). Composes the full pipeline:
 /// <list type="bullet">
 ///   <item><description>Site-local SQLite <see cref="SqliteAuditWriter"/> (in-memory) +
@@ -48,15 +48,25 @@ namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Integration.Infrastructure;
 /// </remarks>
 public sealed class CombinedTelemetryHarness : IAsyncDisposable
 {
+    /// <summary>The site SQLite audit writer under test.</summary>
     public SqliteAuditWriter SqliteWriter { get; }
+    /// <summary>The in-memory ring buffer fallback for audit events.</summary>
     public RingBufferFallback Ring { get; }
+    /// <summary>The fallback audit writer that wraps the SQLite writer and the ring buffer.</summary>
     public FallbackAuditWriter FallbackWriter { get; }
+    /// <summary>The site-local operation tracking store.</summary>
     public OperationTrackingStore TrackingStore { get; }
+    /// <summary>The inner cached-call telemetry forwarder.</summary>
     public CachedCallTelemetryForwarder InnerForwarder { get; }
+    /// <summary>The combined telemetry dispatcher that sends audit and operational state together.</summary>
     public CombinedTelemetryDispatcher Dispatcher { get; }
+    /// <summary>The cached-call lifecycle bridge wired to the forwarder.</summary>
     public CachedCallLifecycleBridge Bridge { get; }
+    /// <summary>The stub site-stream audit client that delivers packets directly to the ingest actor.</summary>
     public DirectActorSiteStreamAuditClient StubClient { get; }
+    /// <summary>The central audit ingest actor.</summary>
     public IActorRef IngestActor { get; }
+    /// <summary>The service provider backing the central repositories.</summary>
     public IServiceProvider ServiceProvider { get; }
 
     private readonly MsSqlMigrationFixture _fixture;
@@ -64,6 +74,10 @@ public sealed class CombinedTelemetryHarness : IAsyncDisposable
     private readonly ServiceProvider _trackingLocalDbProvider;
     private bool _disposed;
 
+    /// <summary>Builds the harness, wiring the site writer chain, dispatcher and central ingest actor against the shared fixture.</summary>
+    /// <param name="fixture">The MS SQL migration fixture providing the central database.</param>
+    /// <param name="testKit">The Akka test kit that hosts the ingest actor.</param>
+    /// <param name="siteCallRepoOverride">Optional factory that replaces the default site-call audit repository.</param>
     public CombinedTelemetryHarness(
         MsSqlMigrationFixture fixture,
         Akka.TestKit.Xunit2.TestKit testKit,
@@ -133,15 +147,23 @@ public sealed class CombinedTelemetryHarness : IAsyncDisposable
     /// dispatcher (the bridge's hooks fire only for S&amp;F retry-loop
     /// attempts; submit-row emission happens at the script call site).
     /// </summary>
+    /// <param name="submit">The submit packet to forward.</param>
+    /// <param name="ct">A token to cancel the forward.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public Task EmitSubmitAsync(CachedCallTelemetry submit, CancellationToken ct = default) =>
         Dispatcher.ForwardAsync(submit, ct);
 
     /// <summary>
     /// Convenience: route a per-attempt or terminal outcome through the bridge.
     /// </summary>
+    /// <param name="context">The attempt or terminal-outcome context to route.</param>
+    /// <param name="ct">A token to cancel the emit.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public Task EmitAttemptAsync(CachedCallAttemptContext context, CancellationToken ct = default) =>
         Bridge.OnAttemptCompletedAsync(context, ct);
 
+    /// <summary>Creates a fresh central database context for reading back persisted rows.</summary>
+    /// <returns>A new <see cref="ScadaBridgeDbContext"/>.</returns>
     public ScadaBridgeDbContext CreateReadContext()
     {
         var options = new DbContextOptionsBuilder<ScadaBridgeDbContext>()
@@ -173,6 +195,8 @@ public sealed class CombinedTelemetryHarness : IAsyncDisposable
         return services.BuildServiceProvider();
     }
 
+    /// <summary>Releases the resources held by this test class asynchronously.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async ValueTask DisposeAsync()
     {
         if (_disposed) return;