fix: use COALESCE(published_at, fetched_at) in news query — articles with no publish date were silently dropped

src/fabledassistant/routes/briefing.py

@@ -360,8 +360,8 @@ async def list_news():
                     ON r.rss_item_id = i.id AND r.user_id = :uid
                 WHERE f.user_id = :uid
                   AND (:feed_id IS NULL OR f.id = :feed_id)
-                  AND i.published_at >= NOW() - make_interval(days => :days)
+                  AND COALESCE(i.published_at, i.fetched_at) >= NOW() - make_interval(days => :days)
-                ORDER BY i.published_at DESC NULLS LAST
+                ORDER BY COALESCE(i.published_at, i.fetched_at) DESC
                 LIMIT :limit OFFSET :offset
             """).bindparams(uid=g.user.id, days=days, limit=limit,
                             offset=offset, feed_id=feed_id)