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/Notifications/SmsNotificationE2ETests.cs

@@ -50,6 +50,8 @@ public class SmsNotificationE2ETests
 
     private readonly PlaywrightFixture _pw;
 
+    /// <summary>Initializes the tests with the shared Playwright fixture.</summary>
+    /// <param name="pw">The shared Playwright browser fixture.</param>
     public SmsNotificationE2ETests(PlaywrightFixture pw)
     {
         _pw = pw;
@@ -74,6 +76,7 @@ public class SmsNotificationE2ETests
     /// fills, and never raise the saved toast — all of which are asserted with web-first waits.
     /// </para>
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task SmsConfigPage_CreateOrRender_NeverLeaksAuthToken()
     {
@@ -141,6 +144,7 @@ public class SmsNotificationE2ETests
     /// phone recipient and assert the row appears. Best-effort CLI teardown in <c>finally</c>.
     /// </para>
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task ListCreate_SmsType_ShowsPhoneInput_NotEmail()
     {
@@ -208,6 +212,7 @@ public class SmsNotificationE2ETests
     /// the list page, and scopes the assertion to that list's row so it cannot match another
     /// list's Type cell. Best-effort CLI teardown in <c>finally</c>.
     /// </summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [SkippableFact]
     public async Task ListCreate_SmsType_ShowsSmsInTypeColumn()
     {