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/Flattening/ConnectionBindingOverrideTests.cs

@@ -35,6 +35,7 @@ public class ConnectionBindingOverrideTests
             [id] = new("OPC-Server1", "OpcUa", 1) { Id = id, PrimaryConfiguration = "opc.tcp://localhost:4840" }
         };
 
+    /// <summary>Verifies that a set override replaces the template's data source reference.</summary>
     [Fact]
     public void Override_replaces_template_DataSourceReference_when_set()
     {
@@ -58,6 +59,7 @@ public class ConnectionBindingOverrideTests
         Assert.Equal("ns=2;s=Pump1.Speed", attr.DataSourceReference);
     }
 
+    /// <summary>Verifies that a null override falls back to the template default.</summary>
     [Fact]
     public void Null_override_falls_back_to_template_default()
     {
@@ -81,6 +83,7 @@ public class ConnectionBindingOverrideTests
         Assert.Equal("TemplateDefault", attr.DataSourceReference);
     }
 
+    /// <summary>Verifies that changing an override changes the revision hash.</summary>
     [Fact]
     public void Override_change_changes_revision_hash()
     {