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/BundleSerializerTests.cs

@@ -8,7 +8,7 @@ namespace ZB.MOM.WW.ScadaBridge.Transport.Tests.Serialization;
 
 public sealed class BundleSerializerTests
 {
-    // Commons-015 sets the documented PBKDF2 floor to 100_000 (OWASP minimum).
+    // The documented PBKDF2 floor is 100_000 (OWASP minimum).
     // Using the floor keeps the suite fast while passing EncryptionMetadata
     // validation.
     private const int TestIterations = EncryptionMetadata.MinPbkdf2Iterations;
@@ -33,6 +33,7 @@ public sealed class BundleSerializerTests
             contents: Array.Empty<ManifestContentEntry>(),
             contentBytes: contentBytes);
 
+    /// <summary>Verifies that packing without a passphrase emits a manifest and plain JSON content.</summary>
     [Fact]
     public void Pack_emits_manifest_and_content_json_when_no_passphrase()
     {
@@ -49,6 +50,7 @@ public sealed class BundleSerializerTests
         Assert.Null(archive.GetEntry("content.enc"));
     }
 
+    /// <summary>Verifies that packing with a passphrase emits a manifest and encrypted content.</summary>
     [Fact]
     public void Pack_emits_manifest_and_content_enc_when_passphrase_supplied()
     {
@@ -67,6 +69,7 @@ public sealed class BundleSerializerTests
         Assert.NotNull(archive.GetEntry("content.enc"));
     }
 
+    /// <summary>Verifies that a round trip through a temporary stream recovers identical content.</summary>
     [Fact]
     public void Roundtrip_through_temp_stream_recovers_identical_content()
     {
@@ -91,6 +94,7 @@ public sealed class BundleSerializerTests
         Assert.Equal("return 42;", shared.Code);
     }
 
+    /// <summary>Verifies that reading the manifest throws when the archive has no manifest file.</summary>
     [Fact]
     public void ReadManifest_throws_when_zip_missing_manifest_json()
     {
@@ -107,6 +111,7 @@ public sealed class BundleSerializerTests
         Assert.Throws<InvalidDataException>(() => sut.ReadManifest(ms));
     }
 
+    /// <summary>Verifies that unpacking throws a CryptographicException when the passphrase is wrong.</summary>
     [Fact]
     public void UnpackContent_throws_CryptographicException_on_wrong_passphrase()
     {