Namespace EchoHub.Core.DTOs Classes ApiResponse ApiResponse<T> AssignRoleRequest AvatarUploadResponse BanRequest ChannelDto ChannelOperationResult CreateChannelRequest EmbedDto EncryptionKeyResponse ErrorResponse JoinChannelResult KickRequest LoginRequest LoginResponse MessageDto MuteRequest PaginatedResponse<T> RefreshRequest RegisterRequest SendMessageRequest SendUrlRequest ServerStatusDto UpdateProfileRequest UpdateStatusRequest UpdateTopicRequest UserDto UserOperationResult UserPresenceDto UserProfileDto Enums ChannelError UserError