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.Transport.IntegrationTests/Import/BundleImporterRollbackFailureTests.cs

@@ -50,6 +50,7 @@ public sealed class BundleImporterRollbackFailureTests : IDisposable
     private readonly DbConnection _sharedConnection;
     private readonly ThrowingRollbackInterceptor _interceptor = new();
 
+    /// <summary>Initializes the in-memory SQLite database and service provider used by the tests.</summary>
     public BundleImporterRollbackFailureTests()
     {
         var services = new ServiceCollection();
@@ -87,7 +88,7 @@ public sealed class BundleImporterRollbackFailureTests : IDisposable
         services.AddScoped<IExternalSystemRepository, ExternalSystemRepository>();
         services.AddScoped<INotificationRepository, NotificationRepository>();
         services.AddScoped<IInboundApiRepository, InboundApiRepository>();
-        // M8: DependencyResolver now injects ISiteRepository to walk the
+        // DependencyResolver now injects ISiteRepository to walk the
         // site/data-connection/instance closure; register it or activation fails.
         services.AddScoped<ISiteRepository, SiteRepository>();
         services.AddScoped<IAuditCorrelationContext, AuditCorrelationContext>();
@@ -102,12 +103,15 @@ public sealed class BundleImporterRollbackFailureTests : IDisposable
         ctx.Database.EnsureCreated();
     }
 
+    /// <summary>Releases the resources held by the test fixture.</summary>
     public void Dispose()
     {
         _provider.Dispose();
         _sharedConnection.Dispose();
     }
 
+    /// <summary>Verifies that applying a bundle still writes a BundleImportFailed audit entry when the transaction rollback itself throws.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task ApplyAsync_writes_BundleImportFailed_even_when_RollbackAsync_throws()
     {
@@ -225,8 +229,10 @@ public sealed class BundleImporterRollbackFailureTests : IDisposable
     {
         public const string RollbackErrorMarker = "simulated rollback failure";
 
+        /// <summary>Gets or sets whether the interceptor throws when a transaction rolls back.</summary>
         public bool ThrowOnRollback { get; set; }
 
+        /// <inheritdoc />
         public override ValueTask<InterceptionResult> TransactionRollingBackAsync(
             DbTransaction transaction,
             TransactionEventData eventData,
@@ -240,6 +246,7 @@ public sealed class BundleImporterRollbackFailureTests : IDisposable
             return base.TransactionRollingBackAsync(transaction, eventData, result, cancellationToken);
         }
 
+        /// <inheritdoc />
         public override InterceptionResult TransactionRollingBack(
             DbTransaction transaction,
             TransactionEventData eventData,
@@ -263,6 +270,9 @@ public sealed class BundleImporterRollbackFailureTests : IDisposable
 /// </summary>
 internal sealed class SqliteCompatibleScadaBridgeDbContext : ScadaBridgeDbContext
 {
+    /// <summary>Initializes the context with the given options and data protection provider.</summary>
+    /// <param name="options">The DbContext options.</param>
+    /// <param name="dataProtectionProvider">The data protection provider used for encrypted columns.</param>
     public SqliteCompatibleScadaBridgeDbContext(
         DbContextOptions<ScadaBridgeDbContext> options,
         IDataProtectionProvider dataProtectionProvider)
@@ -270,6 +280,7 @@ internal sealed class SqliteCompatibleScadaBridgeDbContext : ScadaBridgeDbContex
     {
     }
 
+    /// <inheritdoc />
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         base.OnModelCreating(modelBuilder);