Add src/library/content.ts: a ContentCache keyed by fileID under
cacheDirectory (flat originals/ and thumbnails/, 0700/0600), fetching through
the request pools (#45) and the streaming decrypt / atomic writer (#40) so
present-means-complete. One shared pool set serves both this cache and the
ML-data fetch. Photo.original and thumbnail return {path,bytes}, skipped when
present; lib.thumbnails.ensure drives the thumbnail pool with priority, dedup,
and abort.
Integrity rests on the streaming decrypt (every chunk authenticated, renamed
in only on TAG_FINAL) plus a non-empty check. The stored-hash / size compare
is deferred (tracked in #68): the only in-repo hash fixture is a placeholder,
and the stored size is the encrypted object size, not the decrypted length.
Judgement call: three thumbnail priorities map onto two tiers.
Model: opus-4-8
Adds the machine-learning (magic) data layer: fetches per-file ML payloads (face detections + CLIP embeddings) via the existing metadata-backup fetch through the metadata pool after each refresh, decrypts and gunzips them, and stores one mldata/<fileID>.json per file by rename (present-means-complete). A derived index (mldata/clip.f32 + clip.json) loads in one read and is rebuilt whenever it disagrees with the payloads on disk in either direction, so an interrupted backfill self-heals. Never in metadata.json; incremental on later refreshes; progress via onProgress/status.
Model: opus-4-8
Adds the in-process read surface, served from RAM with args-object signatures: albums (list/byName/byID), photos (byID/records -> plain PhotoRecord[]), thin Album/Photo wrappers, and timeline.groups (day/week/month) with a PhotoFilter (albumID/text/fileTypes/hasLocation/includeArchived; hidden excluded). Week keys use ISO YYYY-Www; each file appears once per group, newest first. Built on the #43 snapshot projection; no network.
Model: opus-4-8
Adds three independent bounded request pools — metadata (10 in flight), content (5), thumbnails (25), each overridable — with on-demand-before-background priority and in-flight dedup (a shared key runs once); an idle pool never lends slots, and retries run inside a slot. Self-contained module; the content cache wires it into the library later.
Model: opus-4-8
Adds a synchronous, key-free snapshot() returning LibrarySnapshot (one PhotoRecord per fileID, deduped, newest first) with edited-name/time precedence (pubMagicMetadata over basic metadata) in milliseconds, plus AlbumRecord (favorites identified by type). subscribe({onChange}) delivers LibraryChange (changed/removed albums and files, refreshedAt) only when a refresh changes something; unsubscribe stops delivery. Built on the existing refresh loop; served from RAM, safe to send over IPC.
Model: opus-4-8
Library.open loads metadata.json and serves reads from RAM: an empty cache awaits the first refresh, an existing cache returns at once and refreshes in the background so an unreachable server never stalls open(). A background timer refreshes every refreshIntervalSeconds (default 3), diffing only changed albums via the resumable cursor+tombstone enumerators and rewriting metadata.json only when something changed. A refresh failure is invisible to reads and surfaced via status()/onProgress; a failed save keeps status().lastError set and retries until one lands, so a stale disk is never masked. No sync()/refresh()/serverReachable surface; status() and close() included.
Model: opus-4-8
Adds the metadata.json store: loads whole into RAM with id-lookup Maps, rewrites whole through the exported fsync atomic writer (temp, fsync, rename, dir fsync); a missing, unparseable, or wrong-schema file loads as empty (it is a cache); directory 0700, file 0600. No lock file, no public sync().
Model: opus-4-8
sneak
clawbot