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.TemplateEngine.Tests/TemplateNamingTests.cs

@@ -20,6 +20,7 @@ public class TemplateNamingTests
         return (byId, compById);
     }
 
+    /// <summary>Verifies that a base template's qualified name is just its own name.</summary>
     [Fact]
     public void QualifiedName_BaseTemplate_IsJustItsName()
     {
@@ -29,6 +30,7 @@ public class TemplateNamingTests
         Assert.Equal("Motor Controller", TemplateNaming.QualifiedName(motorController, byId, compById));
     }
 
+    /// <summary>Verifies that a one-level derived template's qualified name is prefixed with its owner.</summary>
     [Fact]
     public void QualifiedName_OneLevelDerived_PrefixesTheOwner()
     {
@@ -45,6 +47,7 @@ public class TemplateNamingTests
         Assert.Equal("Motor Controller.Pump", TemplateNaming.QualifiedName(derivedPump, byId, compById));
     }
 
+    /// <summary>Verifies that a nested derived template's qualified name walks the whole chain.</summary>
     [Fact]
     public void QualifiedName_NestedDerived_WalksTheWholeChain()
     {
@@ -71,6 +74,7 @@ public class TemplateNamingTests
             TemplateNaming.QualifiedName(derivedTempSensor, byId, compById));
     }
 
+    /// <summary>Verifies that a derived template with a missing owner link falls back to its stored name.</summary>
     [Fact]
     public void QualifiedName_DerivedWithMissingOwnerLink_FallsBackToStoredName()
     {