JwtAuthGuard, OptionalJwtAuthGuard, CookieAuthGuard, AdminGuard, the global
and MFA guards, @CurrentUser, @Public, JWT verification and the ephemeral
token service lived in the auth domain, so every controller that checked a
session depended on the whole account module and its imports. They import
no domain themselves; under src/nest/auth-core they are shared kernel like
common/, every importer points there directly, and AtlasModule and
NotificationsModule stop importing AuthModule, which they only did for the
demo gate. lint:boundaries counts auth-core as kernel: 57 fewer cyclic
domain edges, the largest cycle shrinks from 46 to 40 domains.
Maurice