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.IntegrationTests/NotificationOutboxFlowTests.cs

@@ -22,7 +22,7 @@ using ZB.MOM.WW.ScadaBridge.NotificationOutbox.Delivery;
 namespace ZB.MOM.WW.ScadaBridge.IntegrationTests;
 
 /// <summary>
-/// Task 25: end-to-end integration test for the central Notification Outbox flow. Exercises
+/// End-to-end integration test for the central Notification Outbox flow. Exercises
 /// the full ingest -> dispatch -> status pipeline against a real <see cref="NotificationOutboxActor"/>,
 /// a real <see cref="NotificationOutboxRepository"/> over a real (SQLite in-memory) database, and
 /// a stub <see cref="INotificationDeliveryAdapter"/>. Two scenarios are covered: a successful
@@ -39,11 +39,14 @@ public class NotificationOutboxFlowTests : TestKit
     /// </summary>
     private sealed class SqliteOutboxDbContext : ScadaBridgeDbContext
     {
+        /// <summary>Initializes the context over the given SQLite options with an ephemeral data protection provider.</summary>
+        /// <param name="options">The EF Core options configured for the SQLite connection.</param>
         public SqliteOutboxDbContext(DbContextOptions<ScadaBridgeDbContext> options)
             : base(options, new EphemeralDataProtectionProvider())
         {
         }
 
+        /// <inheritdoc />
         protected override void OnModelCreating(ModelBuilder modelBuilder)
         {
             base.OnModelCreating(modelBuilder);
@@ -81,10 +84,14 @@ public class NotificationOutboxFlowTests : TestKit
     {
         private readonly DeliveryOutcome _outcome;
 
+        /// <summary>Initializes the adapter with the outcome every delivery returns.</summary>
+        /// <param name="outcome">The fixed delivery outcome to return.</param>
         public StubEmailAdapter(DeliveryOutcome outcome) => _outcome = outcome;
 
+        /// <inheritdoc />
         public NotificationType Type => NotificationType.Email;
 
+        /// <inheritdoc />
         public Task<DeliveryOutcome> DeliverAsync(
             Notification notification, CancellationToken cancellationToken = default)
             => Task.FromResult(_outcome);
@@ -97,15 +104,21 @@ public class NotificationOutboxFlowTests : TestKit
     /// </summary>
     private sealed class OutboxHarness : IDisposable
     {
+        /// <summary>Gets the kept-open SQLite connection.</summary>
         public SqliteConnection Connection { get; }
+        /// <summary>Gets the composed service provider.</summary>
         public IServiceProvider Services { get; }
 
+        /// <summary>Initializes the harness with the connection and service provider it owns.</summary>
+        /// <param name="connection">The kept-open SQLite connection.</param>
+        /// <param name="services">The composed service provider.</param>
         public OutboxHarness(SqliteConnection connection, IServiceProvider services)
         {
             Connection = connection;
             Services = services;
         }
 
+        /// <summary>Releases the resources held by this test class.</summary>
         public void Dispose()
         {
             (Services as IDisposable)?.Dispose();
@@ -182,11 +195,12 @@ public class NotificationOutboxFlowTests : TestKit
 
     /// <summary>
     /// Test-only no-op <see cref="ICentralAuditWriter"/>. The integration tests
-    /// in this file pre-date M4 Bundle B's audit-writer injection; they do not
+    /// in this file pre-date the audit-writer injection; they do not
     /// assert on emission, just need a non-null collaborator.
     /// </summary>
     private sealed class NoOpCentralAuditWriter : ICentralAuditWriter
     {
+        /// <inheritdoc />
         public Task WriteAsync(AuditEvent evt, CancellationToken ct = default) => Task.CompletedTask;
     }
 
@@ -210,6 +224,7 @@ public class NotificationOutboxFlowTests : TestKit
         return await repository.GetByIdAsync(notificationId);
     }
 
+    /// <summary>Verifies that a successfully dispatched notification reaches the Delivered status.</summary>
     [Fact]
     public void Submit_DispatchedSuccessfully_ReachesDeliveredStatus()
     {
@@ -239,6 +254,7 @@ public class NotificationOutboxFlowTests : TestKit
             interval: TimeSpan.FromMilliseconds(100));
     }
 
+    /// <summary>Verifies that a permanently failed notification reaches Parked and a retry returns it to Pending.</summary>
     [Fact]
     public void Submit_PermanentlyFailed_ReachesParked_ThenRetryReturnsToPending()
     {