fix(oembed.sql): surface correct open graph images

queries/views/media/music/genres.sql

@@ -96,7 +96,18 @@ SELECT
     LEFT JOIN posts p ON pg.posts_id = p.id
     LEFT JOIN directus_files df_post ON p.image = df_post.id
     WHERE pg.genres_id = g.id
-  ) AS posts
+  ) AS posts,
+  json_build_object(
+    'open_graph_image', (
+      SELECT CONCAT('/', df_artist.filename_disk)
+      FROM artists a
+      LEFT JOIN directus_files df_artist ON a.art = df_artist.id
+      WHERE a.genres = g.id
+      AND df_artist.filename_disk IS NOT NULL AND df_artist.filename_disk != ''
+      ORDER BY a.total_plays DESC
+      LIMIT 1
+    )
+  ) AS metadata
 FROM genres g
 CROSS JOIN optimized_globals globals
 ORDER BY g.id ASC;