Migration 163 disabled the TTL deactivation 'until domclick sweeps resume'. The
sweeps (domclick_city_sweep + domclick_detail_backfill) are running daily again
and keep scraped_at fresh, so the disable condition no longer holds. Re-enable is
safe: the job keys on scraped_at (not listing_date), so with live sweeps only
genuinely stale rows fall outside the 14d TTL. Fixes overstated domklik freshness.
LOW audit R2 (#10).