vavallee/bindery v1.4.2 on GitHub

Discover works for libraries migrated from pre-v1.4.1 — Author refresh now updates ratings_count and average_rating on books that already exist in the database. Previously, FetchAuthorBooks skipped all processing for existing books (by foreign ID or deduplicated title), so libraries that had synced authors before v1.4.1 kept ratings_count=0 on every book even after an upgrade and refresh. The recommender's hard filter then dropped all candidates, leaving Discover empty. A refresh-metadata run now back-fills ratings from OpenLibrary for any book where we have better data.