Fetch full metadata and a magnet download link for one audiobook. Returns title, author, narrators, format, bitrate, length, description, cover URL, file size, info hash, tracker list, and the assembled magnet URI.

Search audiobookbay.lu for audiobooks. Returns up to ~12 results per page with title, slug, cover, category, language, and keywords. Use the `slug` field with POST /api/details to retrieve a magnet link.