Remove psr4-migrate.php / psr4-fix-multi.php (mass file rewriters that
triggered AV false positives on merge). Migration is complete; keep
build-psr4-map inventory only and note this in the ADR.
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.