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.IntegrationTests/LocalDbStoreAndForwardConvergenceTests.cs

@@ -10,7 +10,7 @@ namespace ZB.MOM.WW.ScadaBridge.IntegrationTests;
 /// <para>
 /// These are <b>specifications, written before the deletion they justify</b>. The bespoke
 /// <c>ReplicationService</c> (an explicit Add/Remove/Park/Requeue operation stream over Akka)
-/// is deleted at Task 14 and replaced by LocalDb's trigger-based change capture. Each test
+/// was deleted and replaced by LocalDb's trigger-based change capture. Each test
 /// here is one behaviour the old mechanism provided, restated as an outcome the replacement
 /// must still deliver — so the cutover has something to be judged against other than "it
 /// compiles".
@@ -83,6 +83,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
 
     // ---- scenarios --------------------------------------------------------------------
 
+    /// <summary>Verifies that a buffered message materialises on the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task BufferedMessage_MaterialisesOnThePeer()
     {
@@ -94,6 +96,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
             "a message buffered on node A to appear on node B");
     }
 
+    /// <summary>Verifies that a delivered message disappears from the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task DeliveredMessage_DisappearsFromThePeer()
     {
@@ -110,6 +114,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
             "the delivered message to be gone from node B");
     }
 
+    /// <summary>Verifies that a parked message shows as parked on the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task ParkedMessage_ShowsAsParkedOnThePeer()
     {
@@ -124,6 +130,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
             "the parked status to reach node B");
     }
 
+    /// <summary>Verifies that a requeued message resets its status and retry count on the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task RequeuedMessage_ResetsStatusAndRetryCountOnThePeer()
     {
@@ -145,6 +153,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
             "node B to show the requeued message as Pending with retry_count 0");
     }
 
+    /// <summary>Verifies that a message that is added and then removed never converges to present on the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task MessageAddedThenRemoved_NeverConvergesToPresent()
     {
@@ -182,6 +192,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
         Assert.True(await ExistsAsync(B, "msg-ordering-control"));
     }
 
+    /// <summary>Verifies that a message buffered twice converges to the newer state on the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task SameMessage_BufferedTwice_ConvergesToTheNewerState()
     {
@@ -199,6 +211,8 @@ public sealed class LocalDbStoreAndForwardConvergenceTests : LocalDbSitePairHarn
             "the newer state to win on node B");
     }
 
+    /// <summary>Verifies that a park arriving without its preceding add still materialises the row on the peer.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task ParkArrivingWithoutItsAdd_StillMaterialisesTheRow()
     {