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.
Introduce tools/audit-admin-contracts.php to fail on missing schemaPage
sections, missing REST $this callbacks, and incomplete admin build chunks.
Document menu/schema deploy rules and surface a wp-admin error when
assets/admin/build is missing modules instead of failing silently.
kate522