Fix audit findings for coverage, architecture checks, and XML docs

tests/CBDD.Tests/CompactionCrashRecoveryTests.cs

@@ -6,6 +6,10 @@ namespace ZB.MOM.WW.CBDD.Tests;
 
 public class CompactionCrashRecoveryTests
 {
+    /// <summary>
+    /// Verifies compaction resumes from marker phases and preserves data.
+    /// </summary>
+    /// <param name="phase">The crash marker phase to resume from.</param>
     [Theory]
     [InlineData("Started")]
     [InlineData("Copied")]
@@ -49,6 +53,9 @@ public class CompactionCrashRecoveryTests
         }
     }
 
+    /// <summary>
+    /// Verifies corrupted compaction markers are recovered deterministically.
+    /// </summary>
     [Fact]
     public void ResumeCompaction_WithCorruptedMarker_ShouldRecoverDeterministically()
     {