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docs: note generalizing the MB cache table to a shared ApiCache

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The Last.fm browse page has the same live-external-call-per-load problem;
name the cache table/helper generically (ApiCache) so Last.fm rides the
same read-through, with a manual Refresh button and live own-state
annotation.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Jonathan
2026-07-14 00:37:31 +02:00
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docs/superpowers/plans/2026-07-14-musicbrainz-cache.md
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@@ -151,6 +151,12 @@ unthrottled).
prefer real on-disk tracks; this MB cache covers the non-owned / fallback tracklist path. prefer real on-disk tracks; this MB cache covers the non-owned / fallback tracklist path.
## Notes / deferred ## Notes / deferred
- **Name the table/helper generically** — the Last.fm browse page (`/lastfm`) has the same
problem (live external calls per load) and should ride the same read-through. Consider
`ApiCache(key, json, fetchedAt)` + `cached(...)` rather than MB-specific names, so Last.fm
keys (`lfm-top-artists:{user}:{period}:{page}`, etc.) share the table. See the Last.fm
caching todo. Only difference: Last.fm gets a manual **Refresh** button that busts its keys,
and own-state annotation stays live (cache only the raw Last.fm payload).
- Redis deferred (see header). Reconsider only on measured PG-cache contention or a need for - Redis deferred (see header). Reconsider only on measured PG-cache contention or a need for
pub/sub / multi-instance. pub/sub / multi-instance.
- `null`/negative caching gated on the Last.fm title-normalization todo landing first. - `null`/negative caching gated on the Last.fm title-normalization todo landing first.