Extend the existing weekly retention sweeper with a new
spawn_app_user_token_gc function that prunes four tables in one
tick:
* app_user_sessions — expired (sliding window or absolute cap) or
explicitly revoked
* app_user_email_verifications — consumed or expired
* app_user_password_resets — consumed or expired
* app_user_invitations — accepted or expired
Each underlying repo's gc(batch_size) uses FOR UPDATE SKIP LOCKED so
concurrent sweepers don't fight (cluster mode v1.3+ ready). No
configurable retention — rows die when their TTL or terminal state
hits, not on an arbitrary clock.
Wired into picloud's build_app alongside spawn_dead_letter_gc and
spawn_abandoned_gc.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>