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/CombinedTelemetryIdempotencyTests.cs

@@ -34,6 +34,8 @@ public class CombinedTelemetryIdempotencyTests : TestKit, IClassFixture<MsSqlMig
 {
     private readonly MsSqlMigrationFixture _fixture;
 
+    /// <summary>Initializes the suite with the shared MS SQL migration fixture.</summary>
+    /// <param name="fixture">The shared migrated MS SQL database fixture.</param>
     public CombinedTelemetryIdempotencyTests(MsSqlMigrationFixture fixture)
     {
         _fixture = fixture;
@@ -100,6 +102,8 @@ public class CombinedTelemetryIdempotencyTests : TestKit, IClassFixture<MsSqlMig
         return batch;
     }
 
+    /// <summary>Verifies that a duplicate telemetry packet leaves a single audit row and upserts the site call monotonically.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task DuplicatePacket_AuditLogStaysAtOneRow_SiteCallsUpserted_Monotonically()
     {
@@ -144,6 +148,8 @@ public class CombinedTelemetryIdempotencyTests : TestKit, IClassFixture<MsSqlMig
         Assert.Equal(0, siteCalls[0].RetryCount);
     }
 
+    /// <summary>Verifies that an older status arriving after a newer one is a no-op.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task OutOfOrderPackets_OlderStatus_ArrivesAfterNewer_IsNoOp()
     {