Move 288 types from global AKSRT_* + inc/classes manual requires into
namespace AKSRT\{Domain} under src/AKSRT/, wire composer.json psr-4,
and slim bootstrap to helpers/modules/hooks only. Split multi-class
widget/gateway files, update admin contract audit paths, and document
the layout in ADR/README.
Route can_download/Download_State/permission card through Content_Visibility need_purchase; drop download_credit as a second toll; clarify admin labels for points purchase mode.