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/PlaywrightFixture.cs

@@ -24,7 +24,9 @@ public class PlaywrightFixture : IAsyncLifetime
     public const string TestUsername = "multi-role";
     public const string TestPassword = "password";
 
+    /// <summary>The Playwright driver instance created during initialization.</summary>
     public IPlaywright Playwright { get; private set; } = null!;
+    /// <summary>The browser connected to the Playwright server.</summary>
     public IBrowser Browser { get; private set; } = null!;
 
     /// <summary>
@@ -44,12 +46,16 @@ public class PlaywrightFixture : IAsyncLifetime
     /// </summary>
     private const int MaxRetainedContexts = 4;
 
+    /// <summary>Creates the Playwright driver and connects to the remote Chromium endpoint.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task InitializeAsync()
     {
         Playwright = await Microsoft.Playwright.Playwright.CreateAsync();
         Browser = await Playwright.Chromium.ConnectAsync(PlaywrightWsEndpoint);
     }
 
+    /// <summary>Closes the browser connection and disposes the Playwright driver.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public async Task DisposeAsync()
     {
         await Browser.CloseAsync();
@@ -62,6 +68,7 @@ public class PlaywrightFixture : IAsyncLifetime
     /// <see cref="MaxRetainedContexts"/> are open, to bound the number of concurrent Blazor
     /// Server circuits the run holds on the Central UI.
     /// </summary>
+    /// <returns>The new page, which belongs to its own isolated browser context.</returns>
     public async Task<IPage> NewPageAsync()
     {
         var context = await Browser.NewContextAsync();
@@ -92,6 +99,7 @@ public class PlaywrightFixture : IAsyncLifetime
     /// <summary>
     /// Create a new page and log in with the default multi-role test user.
     /// </summary>
+    /// <returns>A page that is authenticated as the default test user.</returns>
     public Task<IPage> NewAuthenticatedPageAsync() =>
         NewAuthenticatedPageAsync(TestUsername, TestPassword);
 
@@ -100,6 +108,9 @@ public class PlaywrightFixture : IAsyncLifetime
     /// Uses JavaScript fetch() to POST to /auth/login from within the browser,
     /// which sets the auth cookie in the browser context. Then navigates to the dashboard.
     /// </summary>
+    /// <param name="username">The LDAP user name to log in with.</param>
+    /// <param name="password">The password for <paramref name="username"/>.</param>
+    /// <returns>A page that is authenticated as the given user.</returns>
     public async Task<IPage> NewAuthenticatedPageAsync(string username, string password)
     {
         var page = await NewPageAsync();
@@ -144,6 +155,11 @@ public class PlaywrightFixture : IAsyncLifetime
     /// Blazor Server uses SignalR for client-side navigation (no full page reload),
     /// so standard WaitForURLAsync times out. This polls window.location instead.
     /// </summary>
+    /// <param name="page">The page whose location is polled.</param>
+    /// <param name="path">A path fragment the location must contain.</param>
+    /// <param name="excludePath">An optional path fragment the location must not contain.</param>
+    /// <param name="timeoutMs">The maximum time to wait, in milliseconds.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public static async Task WaitForPathAsync(IPage page, string path, string? excludePath = null, int timeoutMs = 10000)
     {
         var js = excludePath != null
@@ -163,6 +179,8 @@ public class PlaywrightFixture : IAsyncLifetime
     /// in the DOM but are hidden until the section is expanded. Call this after
     /// authenticating, before interacting with sectioned nav links.
     /// </summary>
+    /// <param name="page">The authenticated page whose navigation sections are expanded.</param>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     public static async Task ExpandAllNavSectionsAsync(IPage page)
     {
         var toggles = page.Locator("summary.rail-eyebrow-toggle");