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.PlaywrightTests/NavCollapseTests.cs

@@ -32,11 +32,15 @@ public class NavCollapseTests
 
     private readonly PlaywrightFixture _fixture;
 
+    /// <summary>Initializes a new instance of the <c>NavCollapseTests</c> class.</summary>
+    /// <param name="fixture">The fixture.</param>
     public NavCollapseTests(PlaywrightFixture fixture)
     {
         _fixture = fixture;
     }
 
+    /// <summary>Verifies that all nav sections are expanded by default after login.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task Sections_AreExpandedByDefault_AfterLogin()
     {
@@ -52,6 +56,8 @@ public class NavCollapseTests
         await Expect(page.Locator("a.rail-link:has-text('Topology')")).ToBeVisibleAsync();
     }
 
+    /// <summary>Verifies that clicking a section header toggles its items.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task ClickingSectionHeader_TogglesItsItems()
     {
@@ -76,6 +82,8 @@ public class NavCollapseTests
         await Expect(topology).ToBeVisibleAsync();
     }
 
+    /// <summary>Verifies that the collapse state survives a page reload.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task CollapseState_SurvivesPageReload()
     {
@@ -97,6 +105,8 @@ public class NavCollapseTests
         await Expect(page.Locator("a.rail-link:has-text('Topology')")).Not.ToBeVisibleAsync();
     }
 
+    /// <summary>Verifies that navigating into a collapsed section expands it automatically.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task NavigatingIntoCollapsedSection_AutoExpandsIt()
     {