Wires up the endpoints AudioBooth + the official audiobookshelf-app
expect but Silo's ABS-compat layer was missing, plus fixes the recently
shipped playlists/collections/series surfaces that were crashing the
mobile clients.
Browse surfaces (crash fixes):
- Hydrate playlist items with full LibraryItem (mediaType, media,
cover) so PlaylistCover + LazyBookCard stop throwing on undefined
fields.
- Add GET /libraries/{id}/collections paged envelope; hydrate
collection books with full LibraryItem so the cover stack renders.
- Add GET /libraries/{id}/playlists total field so LazyBookshelf
paginates correctly.
- Return real numUserPlaylists count from /libraries/{id} so the
bottom-nav Playlists tab actually appears.
- Extend ListLibrarySeries with up to 4 book previews per series
(window-ranked SQL) so LazySeriesCard renders cover stacks
instead of name-only placeholders.
- Auto-delete a playlist when its last item is removed; fire
playlist_removed so the client routes the user back to the list.
New mobile-blocking endpoints:
- PATCH alias on /me/progress/{id} (AudioBooth's progress writes).
- DELETE /me/progress/{id} backed by new DeleteProgress store method.
- GET /me/stats/year/{year} — year-in-review synthesised from
AggregateStats.
- GET /ping, /healthcheck, /init, /auth-settings — unauthenticated
server discovery on every prefix.
Ebook surface (forward-compat stubs):
- LibraryItemMedia.EbookFile omitempty field + EbookFile type.
- progressBody accepts ebookProgress + ebookLocation (silently
ignored until ebook scanner lands).
- GET /items/{id}/ebook/{fileid} 404 stub, PATCH .../status accept.
- GET /me/ereader-devices empty list, POST
/emails/send-ebook-to-device 503 with clear "not configured".
Podcast stubs (audiobook-only catalog v1):
- POST /podcasts/feed, POST /items/{id}/play/{episodeId},
PATCH /me/progress/{id}/{episodeId}, GET
/libraries/{id}/recent-episodes, GET /search/podcast.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>