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.NotificationService.Tests/SmtpTlsModeParserTests.cs

@@ -1,10 +1,13 @@
 namespace ZB.MOM.WW.ScadaBridge.NotificationService.Tests;
 
 /// <summary>
-/// NS-005: Tests for parsing the configured SMTP TLS mode into the three-state enum.
+/// Tests for parsing the configured SMTP TLS mode into the three-state enum.
 /// </summary>
 public class SmtpTlsModeParserTests
 {
+    /// <summary>Verifies that a known mode string parses to the expected TLS mode.</summary>
+    /// <param name="input">The configured mode string.</param>
+    /// <param name="expected">The expected parsed TLS mode.</param>
     [Theory]
     [InlineData("none", SmtpTlsMode.None)]
     [InlineData("None", SmtpTlsMode.None)]
@@ -19,6 +22,8 @@ public class SmtpTlsModeParserTests
         Assert.Equal(expected, SmtpTlsModeParser.Parse(input));
     }
 
+    /// <summary>Verifies that a null or empty mode defaults to StartTLS.</summary>
+    /// <param name="input">The null or empty mode string.</param>
     [Theory]
     [InlineData(null)]
     [InlineData("")]
@@ -28,13 +33,15 @@ public class SmtpTlsModeParserTests
         Assert.Equal(SmtpTlsMode.StartTls, SmtpTlsModeParser.Parse(input));
     }
 
+    /// <summary>Verifies that an unknown mode string throws.</summary>
+    /// <param name="input">The unrecognized mode string.</param>
     [Theory]
     [InlineData("auto")]
     [InlineData("tls")]
     [InlineData("implicit")]
     public void Parse_UnknownMode_Throws(string input)
     {
-        // NS-005: an unknown mode must be rejected, not silently treated as Auto.
+        // An unknown mode must be rejected, not silently treated as Auto.
         Assert.Throws<ArgumentException>(() => SmtpTlsModeParser.Parse(input));
     }
 }