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.Host.Tests/SerilogTests.cs

@@ -4,10 +4,11 @@ using Serilog.Events;
 namespace ZB.MOM.WW.ScadaBridge.Host.Tests;
 
 /// <summary>
-/// WP-14: Tests for Serilog structured logging with enriched properties.
+/// Tests for Serilog structured logging with enriched properties.
 /// </summary>
 public class SerilogTests
 {
+    /// <summary>Verifies that the Serilog logger enriches events with node properties.</summary>
     [Fact]
     public void SerilogLogger_EnrichesWithNodeProperties()
     {
@@ -35,6 +36,7 @@ public class SerilogTests
         Assert.Equal("\"Site\"", logEvent.Properties["NodeRole"].ToString());
     }
 
+    /// <summary>Verifies that the logger enriches events with a site id of Central for the central role.</summary>
     [Fact]
     public void SerilogLogger_CentralRole_EnrichesSiteIdAsCentral()
     {
@@ -63,8 +65,11 @@ public class SerilogTests
 /// </summary>
 public class InMemorySink : Serilog.Core.ILogEventSink
 {
+    /// <summary>Gets the log events captured so far.</summary>
     public List<LogEvent> LogEvents { get; } = new();
 
+    /// <summary>Stores the log event for later assertions.</summary>
+    /// <param name="logEvent">The log event to capture.</param>
     public void Emit(LogEvent logEvent)
     {
         LogEvents.Add(logEvent);