Rebuildable caches move from localStorage to IndexedDB (cache-store.js)

localStorage is ~5M characters per site whatever the device, and a phone
had filled it. Profiles, faceless list, reports, follow packs, profile
pages, relay lists, the moderation baseline, community directory, link
previews, video sizes/probes and search profiles (~3M on that phone) now
live in IndexedDB, which shares the site's disk allowance (GBs).

cacheStorage keeps localStorage's string API: reads from memory,
coalesced write-behind, flushed on hide. Copies migrate on open and are
removed once written. Boot waits for it (max 3s) beside the Ark store;
caches read at construction re-merge on ready; an early write can't
replace the stored copy. A copy an older build writes to localStorage
later moves in on first ask. Wallet wipes reach it; private mode stays on
localStorage. Read markers, drafts, follows, note threads and sync
outboxes stay in localStorage on purpose (cross-tab consistency, early
server-rendered seeding). Also asks navigator.storage.persist().

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/feed-media-cache-test.js b/tools/feed-media-cache-test.js
index f762375..fa90a15 100644
--- a/tools/feed-media-cache-test.js
+++ b/tools/feed-media-cache-test.js
@@ -148,8 +148,8 @@ try {
     && steps.every((u, i) => !i || u < steps[i - 1]), JSON.stringify(steps));
   check('tile frames are kept as pictures (all but the no-CORS host\'s)', await waitFor(async () => (await (await caches.open('coinos-video-thumbs-v1')).keys()).length === 5, 12000),
     String(await page.evaluate(async () => (await (await caches.open('coinos-video-thumbs-v1')).keys()).map((r) => decodeURIComponent(r.url).split('/').pop()).join(','))));
-  await waitFor(() => /h4\.mp4[^\]]*probed|probed[^\]]*h4/.test(localStorage.getItem('coinos-video-info') || '') && /n5\.mp4[^\]]*failedAt/.test(localStorage.getItem('coinos-video-info') || ''), 8000); // the write-behind
-  const info = await page.evaluate(() => Object.fromEntries(JSON.parse(localStorage.getItem('coinos-video-info') || '[]').map(([u, d]) => [u.split('/').pop(), d])));
+  await waitFor(() => /h4\.mp4[^\]]*probed|probed[^\]]*h4/.test((window.coinosCache || localStorage).getItem('coinos-video-info') || '') && /n5\.mp4[^\]]*failedAt/.test((window.coinosCache || localStorage).getItem('coinos-video-info') || ''), 8000); // the write-behind
+  const info = await page.evaluate(() => Object.fromEntries(JSON.parse((window.coinosCache || localStorage).getItem('coinos-video-info') || '[]').map(([u, d]) => [u.split('/').pop(), d])));
   check('a host hiding Content-Range gives its size to a HEAD', info['h4.mp4']?.probed && info['h4.mp4'].size > 1000 && info['h4.mp4'].size !== 12000, JSON.stringify(info['h4.mp4']));
   check('a clip the browser cached from a plain load is still measured, and its frame kept', info['r6.mp4']?.probed === true
     && await page.evaluate(async () => (await (await caches.open('coinos-video-thumbs-v1')).keys()).some((r) => /r6\.mp4/.test(decodeURIComponent(r.url)))), JSON.stringify(info['r6.mp4']));