fixed include errors

BookHive/Specifications/Authors/GetAuthorByIdSpec.cs

@@ -8,6 +8,7 @@ public class GetAuthorByIdSpec : SingleResultSpecification<Author>
     public GetAuthorByIdSpec(int authorId)
     {
         Query
+            .Include(x => x.Books)
             .Where(x => x.Id == authorId);
     }
 }

BookHive/Specifications/Books/GetBookByIdSpec.cs

@@ -9,6 +9,8 @@ public class GetBookByIdSpec : SingleResultSpecification<Book>
     {
         Query
             .Include(x => x.Author)
+            .Include(x => x.Reviews)!
+            .ThenInclude(x => x.Member)
             .Where(x => x.Id == bookId);
     }
 }

BookHive/Specifications/Members/GetMemberByIdSpec.cs

@@ -8,6 +8,11 @@ public class GetMemberByIdSpec : SingleResultSpecification<Member>
     public GetMemberByIdSpec(int memberId)
     {
         Query
+            .Include(x => x.Loans)!
+            .ThenInclude(x => x.Book)
+            .ThenInclude(a => a!.Author)
+            .Include(x => x.Reviews)!
+            .ThenInclude(x => x.Book)
             .Where(x => x.Id == memberId);
     }
 }

BookHive/Specifications/Reviews/GetReviewByBookIdSpec.cs

@@ -8,6 +8,8 @@ public class GetReviewByBookIdSpec : Specification<Review>
     public GetReviewByBookIdSpec(int bookId)
     {
         Query
-            .Where(x => x.Id == bookId);
+            .Include(x => x.Book)
+            .Include(x => x.Member)
+            .Where(x => x.BookId == bookId);
     }
 }