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/Shared/DarkModeToggleTests.cs

@@ -12,6 +12,7 @@ namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Shared;
 /// </summary>
 public class DarkModeToggleTests : BunitContext
 {
+    /// <summary>Initializes the bUnit context with loose JavaScript interop for the dark mode toggle.</summary>
     public DarkModeToggleTests()
     {
         // Loose mode: unconfigured interop returns default. We configure the two
@@ -19,6 +20,7 @@ public class DarkModeToggleTests : BunitContext
         JSInterop.Mode = JSRuntimeMode.Loose;
     }
 
+    /// <summary>Verifies that the toggle renders a button with the toggle dark mode aria label.</summary>
     [Fact]
     public void Renders_Button_WithToggleDarkModeAriaLabel()
     {
@@ -30,6 +32,7 @@ public class DarkModeToggleTests : BunitContext
         Assert.NotNull(button);
     }
 
+    /// <summary>Verifies that a persisted light preference renders the button with aria-pressed false on first render.</summary>
     [Fact]
     public void OnFirstRender_PersistedLight_AriaPressedFalse()
     {
@@ -44,6 +47,7 @@ public class DarkModeToggleTests : BunitContext
         Assert.NotNull(cut.Find("i.bi-moon-stars"));
     }
 
+    /// <summary>Verifies that a persisted dark preference renders the button with aria-pressed true on first render.</summary>
     [Fact]
     public void OnFirstRender_PersistedDark_AriaPressedTrue()
     {
@@ -61,6 +65,7 @@ public class DarkModeToggleTests : BunitContext
         });
     }
 
+    /// <summary>Verifies that clicking the button invokes the toggle and reflects the new state.</summary>
     [Fact]
     public void Click_InvokesToggle_AndReflectsNewState()
     {