Introduced AutoMapper to the API project and registered it in the DI container. Added mapping profiles for core models to DTOs and response objects. Refactored controllers to use AutoMapper for mapping entities to response DTOs. Implemented new response models for messages, media attachments, reactions, and views. Updated MessagesLoader to load messages with related data. Added a migration to support ChatGroupId in messages. Updated dependencies and fixed minor issues in related files.
Split IFriendRequestService into command and query interfaces, refactor related services and tests, and update dependency injection. Add HubResult response model and a SignalR HubExceptionFilter for consistent error handling. Move and update FriendsHub to use new command service and result pattern. Update username validation to allow digits after Cyrillic letters. Add new controllers and configuration for SignalR. Remove obsolete IFriendRequestService and related code.
This commit introduces the MediaFile entity and updates the media attachments model, repositories, and related logic to reference MediaFile instead of storing file metadata directly in MediaAttachments. Controller, service, and SignalR request/response contracts are updated to support the new structure. Database configurations and validators are also adjusted accordingly. This refactor improves media management and normalization in the data model.