- activate, deactivate and restore as record and bulk actions; delete is
the soft delete through deleted_at, never a hard delete
- deleted admins listed and opened (unscoped), deleted/deactivated row
states, Deleted filter (hide / only), preview status hint
- deactivate and delete bump tokens_valid_after; activate and restore do not
- self delete and self deactivate refused; outranking and last active
superuser guarded on delete, deactivate and bulk rows (whole selection
rolls back)
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