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/Monitoring/HealthDashboardTests.cs

@@ -50,6 +50,8 @@ public class HealthDashboardTests
 
     private readonly PlaywrightFixture _fixture;
 
+    /// <summary>Initializes the test class with the shared Playwright fixture.</summary>
+    /// <param name="fixture">The shared Playwright fixture.</param>
     public HealthDashboardTests(PlaywrightFixture fixture)
     {
         _fixture = fixture;
@@ -66,6 +68,7 @@ public class HealthDashboardTests
     /// rather than using a fixed sleep, so a fast cluster will pass quickly.
     /// </para>
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task KpiTiles_ResolveToValues_NotDegradePlaceholder()
     {
@@ -83,10 +86,10 @@ public class HealthDashboardTests
         //
         //    Health.razor structure:
         //      <div class="d-flex ...">
-        //        <h6 class="text-muted mb-0">Notification Outbox</h6>  ← anchor
+        //        <h6 class="text-muted">Notification Outbox</h6>  ← anchor
         //        <a ...>View details →</a>
         //      </div>
-        //      <div class="row g-3 mb-3">            ← outboxSection (+sibling)
+        //      <div class="row g-3">          ← outboxSection (+sibling)
         //        <div class="col-..."><div class="card">Queue Depth</div></div>
         //        <div class="col-..."><div class="card">Stuck</div></div>
         //        <div class="col-..."><div class="card">Parked</div></div>