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.DataConnectionLayer.Tests/Adapters/RealOpcUaClientBatchRollbackTests.cs

@@ -9,7 +9,7 @@ using ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Adapters;
 namespace ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Tests.Adapters;
 
 /// <summary>
-/// Arch-review 2026-08-19 <b>P2-4</b> (rollback half) — a batch subscribe whose
+/// Rollback half of the batch-subscribe fix — a batch subscribe whose
 /// <c>ApplyChanges</c> throws must leave NO residue behind.
 ///
 /// <para>
@@ -70,6 +70,8 @@ public class RealOpcUaClientBatchRollbackTests
         return (int)shard.GetType().GetProperty("ItemCount")!.GetValue(shard)!;
     }
 
+    /// <summary>Verifies that a throw from ApplyChanges rolls back every partially created monitored item.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task ApplyChangesThrow_RollsBackEveryPartiallyCreatedItem()
     {
@@ -92,6 +94,8 @@ public class RealOpcUaClientBatchRollbackTests
         Assert.Empty(subscription.MonitoredItems);
     }
 
+    /// <summary>Verifies that repeated failed batches do not grow the adapter's bookkeeping.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task RepeatedFailedBatches_DoNotGrowTheAdapterBookkeeping()
     {