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.
Add AKSRT_Vip_Service (GET/POST /pay/vip), activate aksrt_vip_level/expires on
order paid, package UI in credits panel, and deep-link VIP CTA to credits tab.
Bump content sales on resource order paid; show order number/time in download
box; poll pending gateway payments; support download_limit_over_price overbuy.
kate522
