/lastfm hit the Last.fm API live on every load / period switch / page. Cache the
raw Last.fm payload in the shared ApiCache table (12h TTL) while keeping the
own-state annotation (followed/owned/wanted) computed LIVE on top — so a follow
made after the payload was cached shows immediately.
- cached() gains a { force } option to bypass a fresh row (still serves stale if
the forced fetch fails); CACHE_TTL.HOUR added.
- All three routes wrap their Last.fm call: lfm-top-artists / lfm-top-albums
:{user}:{period}:{page}, lfm-artist-plays:{user}:{artist} (keys normalized).
- A "Refresh" button on /lastfm force-bypasses the cache (?refresh=1).
- Factored the copy-pasted getCreds/PERIODS/LIMIT into a route-only _creds.ts
(closes the Last.fm-routes DRY todo #19) — prisma stays out of any client
bundle since lib/lastfm.ts is imported by a client component.
web 150 tests (cache-hit + refresh + own-state-live asserted), tsc + build clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jonathan