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

tests/CBDD.Tests/TestExtendedDbContext.cs

@@ -9,17 +9,25 @@ namespace ZB.MOM.WW.CBDD.Shared;
 /// </summary>
 public partial class TestExtendedDbContext : TestDbContext
 {
+    /// <summary>
+    /// Gets or sets the extended entities.
+    /// </summary>
     public DocumentCollection<int, ExtendedEntity> ExtendedEntities { get; set; } = null!;
 
-    public TestExtendedDbContext(string databasePath) : base(databasePath)
+    /// <summary>
+    /// Initializes a new instance of the <see cref="TestExtendedDbContext"/> class.
+    /// </summary>
+    /// <param name="databasePath">Database file path.</param>
+    public TestExtendedDbContext(string databasePath) : base(databasePath)
     {
         InitializeCollections();
     }
 
-    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    /// <inheritdoc />
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
-        base.OnModelCreating(modelBuilder);
-
+        base.OnModelCreating(modelBuilder);
+
         modelBuilder.Entity<ExtendedEntity>()
             .ToCollection("extended_entities")
             .HasKey(e => e.Id);