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.SiteRuntime.Tests/Actors/DeploymentManagerRouteTraceTests.cs

@@ -27,6 +27,7 @@ public class DeploymentManagerRouteTraceTests : TestKit, IDisposable
     private readonly SharedScriptLibrary _sharedScriptLibrary;
     private readonly TestLocalDb _localDb;
 
+    /// <summary>Creates a temporary LocalDb-backed site storage and the script services the actors need.</summary>
     public DeploymentManagerRouteTraceTests()
     {
         _localDb = TestLocalDb.CreateTemp("dm-route-trace-test");
@@ -36,6 +37,7 @@ public class DeploymentManagerRouteTraceTests : TestKit, IDisposable
         _sharedScriptLibrary = new SharedScriptLibrary(_compilationService, NullLogger<SharedScriptLibrary>.Instance);
     }
 
+    /// <inheritdoc />
     void IDisposable.Dispose()
     {
         Shutdown();
@@ -67,6 +69,8 @@ public class DeploymentManagerRouteTraceTests : TestKit, IDisposable
         return actor;
     }
 
+    /// <summary>Verifies that a traced route call returns the child execution id and the inline trace events.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task RouteCall_WithTrace_ReturnsChildExecutionId_AndInlineTraceEvents()
     {
@@ -92,6 +96,8 @@ public class DeploymentManagerRouteTraceTests : TestKit, IDisposable
         Assert.All(rows, r => Assert.Equal(response.ChildExecutionId, r.ExecutionId));
     }
 
+    /// <summary>Verifies that an untraced route call returns the execution id but no trace events.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task RouteCall_WithoutTrace_ReturnsExecutionId_ButNoTraceEvents()
     {
@@ -105,6 +111,8 @@ public class DeploymentManagerRouteTraceTests : TestKit, IDisposable
         Assert.Null(response.TraceEvents);
     }
 
+    /// <summary>Verifies that routing a set-attributes request forwards the trace flag on the command.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task RouteSetAttributes_ForwardsTraceFlag_OnTheCommand()
     {