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.Transport.Tests/Serialization/BundleDtoSerializationTests.cs

@@ -5,7 +5,7 @@ using ZB.MOM.WW.ScadaBridge.Transport.Serialization;
 namespace ZB.MOM.WW.ScadaBridge.Transport.Tests.Serialization;
 
 /// <summary>
-/// Round-trip + forward-compat coverage for the M8 site/instance-scoped bundle
+/// Round-trip + forward-compat coverage for the site/instance-scoped bundle
 /// DTOs (<see cref="SiteDto"/>, <see cref="DataConnectionDto"/>,
 /// <see cref="InstanceDto"/> and the extended <see cref="BundleContentDto"/>).
 /// </summary>
@@ -90,6 +90,7 @@ public sealed class BundleDtoSerializationTests
             },
         };
 
+    /// <summary>Verifies that full content round-trips with deep equality.</summary>
     [Fact]
     public void FullContent_RoundTrips_WithDeepEquality()
     {
@@ -136,6 +137,7 @@ public sealed class BundleDtoSerializationTests
         Assert.Equal(original.Instances[0].ConnectionBindings[0], inst.ConnectionBindings[0]);
     }
 
+    /// <summary>Verifies that enums serialize as strings for a human-readable wire format.</summary>
     [Fact]
     public void EnumsSerializeAsStrings_ForHumanReadableWire()
     {
@@ -147,10 +149,11 @@ public sealed class BundleDtoSerializationTests
         Assert.Contains("\"Double\"", json, StringComparison.Ordinal);
     }
 
+    /// <summary>Verifies that legacy content missing the new arrays deserializes to empty collections rather than null.</summary>
     [Fact]
     public void LegacyContent_MissingNewArrays_DeserializesToEmpty_NotNull()
     {
-        // A pre-M8 bundle content blob: only the original central-config arrays
+        // A legacy bundle content blob: only the original central-config arrays
         // are present; sites/dataConnections/instances fields are entirely absent
         // from the JSON text.
         const string legacyJson = """
@@ -178,10 +181,11 @@ public sealed class BundleDtoSerializationTests
         Assert.Empty(content.Instances);
     }
 
+    /// <summary>Verifies that a default-constructed content has empty, non-null new arrays.</summary>
     [Fact]
     public void DefaultConstructed_NewArrays_AreEmpty_NotNull()
     {
-        // Existing positional callers that never set the M8 members still get
+        // Existing positional callers that never set the site/instance members still get
         // empty (not null) collections, so consumers can enumerate unconditionally.
         var content = new BundleContentDto(
             TemplateFolders: Array.Empty<TemplateFolderDto>(),
@@ -201,7 +205,7 @@ public sealed class BundleDtoSerializationTests
         Assert.Empty(content.Instances);
     }
 
-    // --- arch-review 2026-08-19 P7-1: ExternalSystem TimeoutSeconds wire format ---
+    // --- ExternalSystem TimeoutSeconds wire format ---
 
     /// <summary>
     /// Pins the old-bundle semantics: a bundle written before <c>TimeoutSeconds</c>
@@ -249,6 +253,7 @@ public sealed class BundleDtoSerializationTests
 
     // --- S10: SMS recipient PhoneNumber + SmsConfig wire format ---------------
 
+    /// <summary>Verifies that a legacy recipient missing a phone number deserializes to null.</summary>
     [Fact]
     public void LegacyRecipient_MissingPhoneNumber_DeserializesToNull()
     {
@@ -283,11 +288,12 @@ public sealed class BundleDtoSerializationTests
         Assert.Null(recipient.PhoneNumber);
     }
 
+    /// <summary>Verifies that legacy content missing the SMS configs array deserializes to an empty collection rather than null.</summary>
     [Fact]
     public void LegacyContent_MissingSmsConfigsArray_DeserializesToEmpty_NotNull()
     {
         // A pre-SMS bundle has no smsConfigs field; the importer must see an empty
-        // (never null) collection — same forward-compat invariant as the M8 arrays.
+        // (never null) collection — same forward-compat invariant as the site/instance arrays.
         const string legacyJson = """
             {
               "TemplateFolders": [],
@@ -308,6 +314,7 @@ public sealed class BundleDtoSerializationTests
         Assert.Empty(content.SmsConfigs);
     }
 
+    /// <summary>Verifies that a default-constructed content has an empty, non-null SMS configs collection.</summary>
     [Fact]
     public void DefaultConstructed_SmsConfigs_IsEmpty_NotNull()
     {
@@ -325,6 +332,7 @@ public sealed class BundleDtoSerializationTests
         Assert.Empty(content.SmsConfigs);
     }
 
+    /// <summary>Verifies that the SMS config auth token rides the secrets block rather than cleartext public fields.</summary>
     [Fact]
     public void SmsConfig_AuthToken_RidesSecretsBlock_NotCleartextPublicFields()
     {