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

tests/CBDD.Tests/DbContextInheritanceTests.cs

@@ -11,18 +11,27 @@ public class DbContextInheritanceTests : IDisposable
     private readonly string _dbPath;
     private readonly Shared.TestExtendedDbContext _db;
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="DbContextInheritanceTests"/> class.
+    /// </summary>
     public DbContextInheritanceTests()
     {
         _dbPath = Path.Combine(Path.GetTempPath(), $"cbdd_inheritance_{Guid.NewGuid()}.db");
         _db = new Shared.TestExtendedDbContext(_dbPath);
     }
 
+    /// <summary>
+    /// Releases test resources.
+    /// </summary>
     public void Dispose()
     {
         _db.Dispose();
         if (File.Exists(_dbPath)) File.Delete(_dbPath);
     }
 
+    /// <summary>
+    /// Verifies parent collections are initialized in the extended context.
+    /// </summary>
     [Fact]
     public void ExtendedContext_Should_Initialize_Parent_Collections()
     {
@@ -35,6 +44,9 @@ public class DbContextInheritanceTests : IDisposable
         _db.TestDocuments.ShouldNotBeNull();
     }
 
+    /// <summary>
+    /// Verifies extended context collections are initialized.
+    /// </summary>
     [Fact]
     public void ExtendedContext_Should_Initialize_Own_Collections()
     {
@@ -42,6 +54,9 @@ public class DbContextInheritanceTests : IDisposable
         _db.ExtendedEntities.ShouldNotBeNull();
     }
 
+    /// <summary>
+    /// Verifies parent collections are usable from the extended context.
+    /// </summary>
     [Fact]
     public void ExtendedContext_Can_Use_Parent_Collections()
     {
@@ -57,6 +72,9 @@ public class DbContextInheritanceTests : IDisposable
         retrieved.Age.ShouldBe(30);
     }
 
+    /// <summary>
+    /// Verifies extended collections are usable from the extended context.
+    /// </summary>
     [Fact]
     public void ExtendedContext_Can_Use_Own_Collections()
     {
@@ -76,6 +94,9 @@ public class DbContextInheritanceTests : IDisposable
         retrieved.Description.ShouldBe("Test Extended Entity");
     }
 
+    /// <summary>
+    /// Verifies parent and extended collections can be used together.
+    /// </summary>
     [Fact]
     public void ExtendedContext_Can_Use_Both_Parent_And_Own_Collections()
     {