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/InstanceActorSetAttributeTests.cs

@@ -14,7 +14,7 @@ using System.Text.Json;
 namespace ZB.MOM.WW.ScadaBridge.SiteRuntime.Tests.Actors;
 
 /// <summary>
-/// Regression tests for SiteRuntime-001: Instance.SetAttribute must route writes
+/// Regression tests: Instance.SetAttribute must route writes
 /// to the Data Connection Layer for data-sourced attributes instead of persisting
 /// a local static override.
 /// </summary>
@@ -26,6 +26,7 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
     private readonly SiteRuntimeOptions _options;
     private readonly TestLocalDb _localDb;
 
+    /// <summary>Initializes the test class with an actor system and storage.</summary>
     public InstanceActorSetAttributeTests()
     {
         _localDb = TestLocalDb.CreateTemp("instance-setattr-test");
@@ -40,6 +41,7 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
         _options = new SiteRuntimeOptions();
     }
 
+    /// <inheritdoc />
     void IDisposable.Dispose()
     {
         // TestKit teardown first, so no in-flight actor can reach a disposed ILocalDb;
@@ -87,6 +89,8 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
         ]
     };
 
+    /// <summary>Verifies that setting a data-sourced attribute issues a DCL write and does not persist an override.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task SetAttribute_DataSourcedAttribute_IssuesDclWriteAndDoesNotPersistOverride()
     {
@@ -114,6 +118,7 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
         Assert.Empty(overrides);
     }
 
+    /// <summary>Verifies that setting a data-sourced attribute does not optimistically update memory.</summary>
     [Fact]
     public void SetAttribute_DataSourcedAttribute_DoesNotOptimisticallyUpdateMemory()
     {
@@ -135,6 +140,7 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
         Assert.Equal("10", get.Value?.ToString());
     }
 
+    /// <summary>Verifies that a DCL write failure for a data-sourced attribute is returned to the caller.</summary>
     [Fact]
     public void SetAttribute_DataSourcedAttribute_DclWriteFailure_ReturnedToCaller()
     {
@@ -153,6 +159,8 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
         Assert.Contains("device rejected write", response.ErrorMessage);
     }
 
+    /// <summary>Verifies that setting a static attribute still persists the override and does not call the DCL.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task SetAttribute_StaticAttribute_StillPersistsOverrideAndDoesNotCallDcl()
     {
@@ -182,10 +190,12 @@ public class InstanceActorSetAttributeTests : TestKit, IDisposable
         Assert.Equal("Backup", overrides["Label"]);
     }
 
-    // SiteRuntime-025: SetAttribute on an unknown attribute name must NOT
+    // SetAttribute on an unknown attribute name must NOT
     // pollute the in-memory dictionary, NOT publish a synthetic
     // AttributeValueChanged, and NOT persist a durable override row.
 
+    /// <summary>Verifies that setting an unknown attribute returns a failure and does not persist an override.</summary>
+    /// <returns>A task that represents the asynchronous operation.</returns>
     [Fact]
     public async Task SetAttribute_UnknownAttribute_ReturnsFailureAndDoesNotPersistOverride()
     {