Audiobook and ebook libraries previously never entered the Recently
Added pipeline: availability detection only ran for TV/movie/mixed
libraries and release_events only knew episode/movie kinds, so server
channels (Discord/generic webhooks) could not announce new audiobooks
or ebooks.
Generalize the movie path into a flat-item-kind registry
(internal/notifications/item_kind.go) driving availability detection,
recording, channel toggles, payload rendering, test fixtures, and the
admin backfill seeder. New kinds share a kind-discriminated
item_availability table; movie_availability stays as-is. Channels gain
notify_new_audiobooks/notify_new_ebooks toggles (default on, additive
API fields) and embeds carry the author from item_people. Flood-safe by
construction: existing libraries seed silently on their first
post-upgrade full scan.
Extract internal/librarykind to replace the is*LibraryType helper
copies that had drifted across scanner, libraryingest, and metadata
(metadata's movie check silently included mixed; now spelled
explicitly).
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Add admin-owned broadcast destinations ("community channels"): Discord or
generic webhooks fed straight from release_events by a per-channel watermark
sweep, announcing newly added movies/episodes as grouped digest posts plus
configurable media request lifecycle events (submitted/approved/declined/
fulfilled).
- Extend release_events with a kind discriminator and add a movie
availability spine (movie_availability + kind-keyed
notification_content_seed_state; first full scan seeds silently so
upgrades never flood the movie back catalog)
- Sweep worker reads events by (created_at, id) cursor with batch-window
grouping, per-channel backoff, and auto-disable; request events post
best-effort via new requests.LifecycleNotifier hooks
- Reuse the webhook stack throughout: URL encryption (new AAD namespace),
SSRF guard, embed limits, HMAC signing; shared type/name validation
extracted for both services
- Admin CRUD API under /admin/notifications/server-channels and a Server
Channels section in the notifications admin settings UI
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
