App-user session storage (migration 0027) mirrors admin_sessions but
adds three things v1.1.8 needs:
* app_id column + FK cascade — every v1.1+ table starts with app_id
so cross-app isolation is bright at the SQL layer (lookup keys
off the hash only, but defense-in-depth: a leaked row's session
still scopes to its app on every read).
* absolute_expires_at — hard cap on the sliding window (default 30d
via PICLOUD_APP_USER_SESSION_ABSOLUTE_HOURS). Beyond this the
user must re-login regardless of recent activity.
* revoked_at — explicit revocation by token (logout) or per-user
(admin revoke-sessions button, password reset). Lookups reject
revoked rows immediately so revocation takes effect before the
weekly GC sweep runs.
The repo's gc() uses FOR UPDATE SKIP LOCKED matching the dead-letter
and abandoned-executions sweep patterns; the GC wiring lands in a
later commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>