ABP Framework Series: Implementing SchoolClass & Gender Contracts with CQRS + MediatR

This tutorial implements SchoolClass and Gender contracts from previous lessons using ABP Framework, CQRS, and MediatR. Covers IGenderAppService and ISchoolClassAppService implementation with CRUD operations, command/query handlers, AutoMapper profiles, and advanced features like filtering, pagination, and dynamic sorting. Includes complete source code on GitHub for hands-on learning of contract-driven development with clean architecture principles.