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/Site/Telemetry/NoOpSiteStreamAuditClientTests.cs

@@ -4,15 +4,17 @@ using ZB.MOM.WW.ScadaBridge.Communication.Grpc;
 namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Site.Telemetry;
 
 /// <summary>
-/// Bundle E E1 tests for <see cref="NoOpSiteStreamAuditClient"/>. The NoOp
-/// client is the default <see cref="ISiteStreamAuditClient"/> binding until M6
-/// delivers the gRPC-backed implementation; both <c>IngestAuditEventsAsync</c>
-/// (M2) and <c>IngestCachedTelemetryAsync</c> (M3) must return an empty ack
+/// Tests for <see cref="NoOpSiteStreamAuditClient"/>. The NoOp
+/// client is the default <see cref="ISiteStreamAuditClient"/> binding until the
+/// gRPC-backed implementation is delivered; both <c>IngestAuditEventsAsync</c>
+/// and <c>IngestCachedTelemetryAsync</c> must return an empty ack
 /// (no rows flipped to Forwarded) without throwing or partially handling the
 /// batch.
 /// </summary>
 public class NoOpSiteStreamAuditClientTests
 {
+    /// <summary>Verifies that ingesting an empty cached-telemetry batch returns an empty acknowledgement.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task IngestCachedTelemetryAsync_EmptyBatch_ReturnsEmptyAck()
     {
@@ -25,6 +27,8 @@ public class NoOpSiteStreamAuditClientTests
         Assert.Empty(ack.AcceptedEventIds);
     }
 
+    /// <summary>Verifies that ingesting a populated batch still returns an empty acknowledgement, because the no-op client forwards nothing.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task IngestCachedTelemetryAsync_PopulatedBatch_ReturnsEmptyAck()
     {
@@ -47,6 +51,8 @@ public class NoOpSiteStreamAuditClientTests
         Assert.Empty(ack.AcceptedEventIds);
     }
 
+    /// <summary>Verifies that ingesting a null batch throws an <see cref="ArgumentNullException"/>.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task IngestCachedTelemetryAsync_NullBatch_Throws()
     {