- AuthzCacheLifecycleHook — invalidates the user_groups_cache Moka entry on logout/delete.
- SessionRevocationLifecycleHook — explicit per-session firing of on_user_logout (currently per-call); session revocation inside the user-delete transaction.
- DeletionMode-driven policy in HomeFolderLifecycleHook::on_user_deleted (trash vs hard-delete based on AdminDelete / GdprPurge).
- Refactor delete_user_admin to expose a transaction handle so on_user_deleted can abort atomically.