DeleteMessageResponseDto

{
    "success": true,
    "event_id": "507f1f77bcf86cd799439011",
    "deleted_at": "2026-01-31T12:00:00.000Z",
    "deleted_by": {
        "id": "uuid-123",
        "type": "user",
        "first_name": "Иван",
        "last_name": "Петров",
        "username": "ivan_petrov",
        "avatar_url": "https://example.com/avatar.jpg"
    },
    "platform_deleted": true,
    "error": "Сообщение можно удалить только в течение 48 часов"
}