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.ConfigurationDatabase.Tests/ServiceCollectionExtensionsTests.cs

@@ -9,6 +9,7 @@ namespace ZB.MOM.WW.ScadaBridge.ConfigurationDatabase.Tests;
 
 public class ServiceCollectionExtensionsTests
 {
+    /// <summary>Verifies that adding the configuration database with a connection string registers the repositories and services.</summary>
     [Fact]
     public void AddConfigurationDatabase_WithConnectionString_RegistersRepositoriesAndServices()
     {
@@ -22,10 +23,11 @@ public class ServiceCollectionExtensionsTests
         Assert.Contains(services, d => d.ServiceType == typeof(IAuditLogRepository));
     }
 
+    /// <summary>Verifies that the configuration database is configured with a retrying execution strategy.</summary>
     [Fact]
     public void AddConfigurationDatabase_Configures_RetryingExecutionStrategy()
     {
-        // Task 12 (arch-review 04 S5): the central DbContext must survive transient
+        // The central DbContext must survive transient
         // SQL faults. EnableRetryOnFailure installs a non-null ExecutionStrategyFactory
         // on the SqlServer options extension — covering every read-side path (KPI asks,
         // outbox queries, Tracking.Status, execution trees) that previously surfaced
@@ -130,10 +132,11 @@ public class ServiceCollectionExtensionsTests
             types: new[] { typeof(IServiceCollection) },
             modifiers: null)!;
 
+    /// <summary>Verifies that the parameterless overload fails fast with a clear message.</summary>
     [Fact]
     public void AddConfigurationDatabase_NoArgOverload_FailsFastWithClearMessage()
     {
-        // Regression guard for ConfigurationDatabase-003: the parameterless overload must not
+        // Regression guard for the original no-op bug: the parameterless overload must not
         // silently register nothing. Misuse must surface immediately at wire-up time with an
         // actionable message — not later as an opaque DI resolution failure.
         var services = new ServiceCollection();
@@ -145,6 +148,7 @@ public class ServiceCollectionExtensionsTests
         Assert.Contains("connection string", ex.Message, StringComparison.OrdinalIgnoreCase);
     }
 
+    /// <summary>Verifies that the parameterless overload is marked obsolete as a compile-time error.</summary>
     [Fact]
     public void AddConfigurationDatabase_NoArgOverload_IsMarkedObsoleteAsError()
     {