Recent published persona-briefings, optionally filtered by lang.

Convention: non-EN briefings use slug prefix daily-<lang>-* (see seed_es_personas_2026_05_20.py). EN runs match every other persona. Returns most-recent first. Public endpoint — briefings are our own editorial commentary, not gated by Publisher.opt_in_at.

Cap is 1000 (was 50) because the frontend sitemap.xml + news-sitemap.xml use this endpoint to enumerate URLs for SEO discoverability; 50 was leaving 100s of published briefings invisible to Google. Postgres handles 1k LIMIT trivially on the (status, published_at DESC) index.