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.Communication.Tests/LooseValueCodecTests.cs

@@ -17,6 +17,8 @@ namespace ZB.MOM.WW.ScadaBridge.Communication.Tests;
 /// </remarks>
 public class LooseValueCodecTests
 {
+    /// <summary>Provides scalar values of each supported CLR type for the round-trip theory.</summary>
+    /// <returns>The scalar test values, one per row.</returns>
     public static IEnumerable<object[]> TaggedScalars() =>
     [
         [true],
@@ -36,6 +38,8 @@ public class LooseValueCodecTests
         [new byte[] { 1, 2, 3 }]
     ];
 
+    /// <summary>Verifies that a tagged value keeps its runtime CLR type after a round trip through the codec.</summary>
+    /// <param name="value">The boxed value to round-trip.</param>
     [Theory]
     [MemberData(nameof(TaggedScalars))]
     public void TaggedValues_KeepTheirClrType(object value)