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/SyncCallEmissionEndToEndTests.cs

@@ -20,7 +20,7 @@ using ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Tests.Migrations;
 namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Integration;
 
 /// <summary>
-/// Bundle H — end-to-end test wiring the full Audit Log #23 M2 sync-call pipeline:
+/// End-to-end test wiring the full sync-call audit pipeline:
 /// <see cref="FallbackAuditWriter"/> over a <see cref="SqliteAuditWriter"/> backed by
 /// an in-memory SQLite database; the <see cref="SiteAuditTelemetryActor"/> drains
 /// Pending rows and pushes them through a stub <see cref="ISiteStreamAuditClient"/>
@@ -30,7 +30,7 @@ namespace ZB.MOM.WW.ScadaBridge.AuditLog.Tests.Integration;
 /// <remarks>
 /// <para>
 /// This is a <b>component-level</b> integration test, not a full Akka-cluster
-/// test (per the M2 brainstorm decision). The stub gRPC client short-circuits
+/// test. The stub gRPC client short-circuits
 /// the wire so we exercise the real telemetry actor, the real ingest actor, the
 /// real SQLite writer, and the real MSSQL repository — without standing up a
 /// Kestrel host or two-cluster topology.
@@ -51,6 +51,8 @@ public class SyncCallEmissionEndToEndTests : TestKit, IClassFixture<MsSqlMigrati
 {
     private readonly MsSqlMigrationFixture _fixture;
 
+    /// <summary>Initializes the test with the shared MSSQL migration fixture.</summary>
+    /// <param name="fixture">The MSSQL fixture that supplies the central database.</param>
     public SyncCallEmissionEndToEndTests(MsSqlMigrationFixture fixture)
     {
         _fixture = fixture;
@@ -129,6 +131,8 @@ public class SyncCallEmissionEndToEndTests : TestKit, IClassFixture<MsSqlMigrati
             FastTelemetryOptions(),
             NullLogger<SiteAuditTelemetryActor>.Instance)));
 
+    /// <summary>Verifies that one written audit event reaches the central AuditLog within a reasonable time.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task EndToEnd_OneWrittenEvent_Reaches_Central_AuditLog_Within_Reasonable_Time()
     {
@@ -174,6 +178,8 @@ public class SyncCallEmissionEndToEndTests : TestKit, IClassFixture<MsSqlMigrati
         }, TimeSpan.FromSeconds(15));
     }
 
+    /// <summary>Verifies that a gRPC stub error leaves the row pending and the next tick delivers it successfully.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task EndToEnd_GrpcStubError_RowStays_Pending_NextTick_Succeeds()
     {
@@ -246,6 +252,8 @@ public class SyncCallEmissionEndToEndTests : TestKit, IClassFixture<MsSqlMigrati
         }, TimeSpan.FromSeconds(15));
     }
 
+    /// <summary>Verifies that submitting the same event twice results in only one central row.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task EndToEnd_DuplicateSubmit_OnlyOneCentralRow()
     {