- Gate the JWT `users.login_guest` audit on the transition to `jwt_entry = true`,
not physical insertion: a guest who signed in through the IdP earlier the same
day already has a `guest_activity` row with `jwt_entry = false`, and the old
`xmax = 0` test suppressed the first JWT audit. A CTE reads the prior flag and
the RETURNING decides it atomically in the upsert.
- Fold the signed-in mint's inline account check into `has_any_account`, so the
helper has both callers and the two no longer diverge on lowercasing.
- Negative-cache a refused guest JWT for 30s so a replayed bearer past the cap
does not take the instance-wide allowance advisory lock on every request.
- Update the two stale share-link header comments to the `guest.<jwt>` form,
drop the "plan gate" rationale on the entry test's cfg, collapse the blank
lines the SHARE_LINK_SEGMENT removal left, and prettier-format the settings
card after the isEnterprisePlan wrapper was removed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VF3v6LA9399gNphmZaHYG3
Ruben FiszelandClaude Opus 4.8
4899e51703