- Add POST /api/n8n/hardcover/sync-books — n8n calls this after detecting
finished books in Hardcover. Authenticates via N8N_SECRET_TOKEN/N8N_API_KEY,
deduplicates by hardcover_id, creates new book_reviews entries in Directus.
- Add getBookReviewByHardcoverId() + createBookReview() to lib/directus.ts.
Check uses GraphQL filter; create uses Directus REST POST /items/book_reviews.
- ReadBooks: replace silent return null with a visible empty state so the
section stays visible with a hint until the n8n sync populates it.
- Projects: add "No projects yet." placeholder instead of blank grid when
both Directus and PostgreSQL return no data.
- Add home.about.readBooks.empty i18n key (EN + DE).
n8n workflow setup:
Schedule → HTTP Hardcover GraphQL (books_read) → Code (transform) →
POST /api/n8n/hardcover/sync-books with array of { hardcover_id, title,
author, image, rating, finished_at }
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>