List Admin Regions

Every active region with its authoritative latest published week.

The review table used to read published state from the PUBLIC index (/public/source-tracker/regions), which carries an hour-long shared-cache header. A region approved since the last cache fill therefore still read as unpublished there — and because an approved snapshot also drops out of the pending queue, its row fell through to "Never scanned" moments after it was in fact published. This route sets no cache headers, so the table always reflects committed DB state; the pending-queue status still supplies the not-yet-published states (pending / incomplete / rejected).