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.CentralUI.Tests/Admin/SiteFormAuditDrillinTests.cs

@@ -15,7 +15,7 @@ using SiteForm = ZB.MOM.WW.ScadaBridge.CentralUI.Components.Pages.Admin.SiteForm
 namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Admin;
 
 /// <summary>
-/// Bundle D drill-in test (#23 M7-T12) for the Site edit page. The chip
+/// Drill-in test for the Site edit page. The chip
 /// routes operators into the central Audit Log pre-filtered by SourceSiteId =
 /// Site.SiteIdentifier (the same string the audit pipeline stamps onto every
 /// site-sourced row). Create mode suppresses the link — there's no site yet.
@@ -25,6 +25,7 @@ public class SiteFormAuditDrillinTests : BunitContext
     private readonly ISiteRepository _siteRepo = Substitute.For<ISiteRepository>();
     private readonly CommunicationService _comms;
 
+    /// <summary>Initializes the test context with a stubbed site repository, communication service and an administrator identity.</summary>
     public SiteFormAuditDrillinTests()
     {
         _comms = new CommunicationService(
@@ -45,6 +46,7 @@ public class SiteFormAuditDrillinTests : BunitContext
         AuthorizationPolicies.AddScadaBridgeAuthorization(Services);
     }
 
+    /// <summary>Verifies that the edit page links to recent audit activity filtered by the site identifier.</summary>
     [Fact]
     public void EditPage_HasRecentAuditActivityLink_WithSiteEqualToSiteIdentifier()
     {
@@ -61,6 +63,7 @@ public class SiteFormAuditDrillinTests : BunitContext
         });
     }
 
+    /// <summary>Verifies that the create page shows no recent audit activity link.</summary>
     [Fact]
     public void CreatePage_HasNoRecentAuditActivityLink()
     {