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/SqliteAuditWriterCommitFailureTests.cs

@@ -14,7 +14,7 @@ using IAuditWriter = ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Services.IAuditWri
 namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Site;
 
 /// <summary>
-/// arch-review 2026-08-19 P4-2 regression coverage. <see cref="SqliteAuditWriter.FlushBatch"/>
+/// Regression coverage. <see cref="SqliteAuditWriter.FlushBatch"/>
 /// used to call <c>pending.Completion.TrySetResult()</c> per row BEFORE
 /// <c>transaction.Commit()</c> ran. A later failure in the SAME batch — another row's insert
 /// throwing, or the commit itself failing (SQLITE_FULL, IOERR) — rolled the whole transaction
@@ -102,6 +102,8 @@ public class SqliteAuditWriterCommitFailureTests
         return (writer, dataSource);
     }
 
+    /// <summary>Verifies that a mid-batch insert failure faults every row in the batch, not just the failing row.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task FlushBatch_MidBatchInsertFailure_FaultsEveryRowInBatch_NotJustTheFailingRow()
     {
@@ -152,6 +154,8 @@ public class SqliteAuditWriterCommitFailureTests
         Assert.Equal(0L, (long)countCmd.ExecuteScalar()!);
     }
 
+    /// <summary>Verifies that the fallback writer rings every faulted row of a mid-batch insert failure and increments the failure counter once per row.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task FallbackAuditWriter_MidBatchInsertFailure_RingsEveryFaultedRow_AndIncrementsFailureCounterForEach()
     {