Removed the DOAJ Seal quality tier (score 8) and the Tier 4 "+1 Seal bonus": DOAJ retired the Seal in April 2025 and removed it from its metadata, so the tier could never be earned again and only ever fired on stale pre-2025 data. DOAJ-listed journals keep their score-5 floor. The `has_doaj_seal` column was dropped from the reference DB (schema version 4 — the DB rebuilds automatically on first use) and the Seal star/count no longer appear on the journal-quality dashboard.
