streamDecrypt no longer recopies the whole accumulation buffer on every network read. Reads are queued with a running byte count and a contiguous buffer is materialised only at each ENC_CHUNK_SIZE boundary, with a straddling read split via a subarray view, so each byte is copied once instead of O(n^2). TAG_FINAL truncation detection, final-chunk handling, retry, and the per-chunk progress hook are unchanged. A new test feeds a multi-chunk body through a ReadableStream that yields many small pieces, exercising the fragmented-read path.
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
Originals no longer buffer the whole decrypted file in RAM: streamDecrypt hands each secretstream chunk to a sink and the download path writes it to the staged temp file, so peak memory is one chunk regardless of file size. The atomic write moved inside the retry loop; only a TAG_FINAL-authenticated attempt renames; truncation leaves no destination file. Does not close#21 (the streamDecrypt accumulation-buffer recopy stays open).
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
Adds collectionsSince/filesSince taking a starting cursor, returning the resumable max-updationTime cursor and a separate list of tombstoned ids; filesSince throws instead of looping when the server reports hasMore without advancing (closes#7). listCollections/listFiles stay as thin, unaffected wrappers.
Model: opus-4-8
The atomic writer fsyncs the staged temp file before rename and the directory after, and is exported for reuse. downloadFile/downloadThumbnail gain an optional per-chunk onProgress hook (non-decreasing, final equals bytesWritten; no-op when absent). Retry and TAG_FINAL checks unchanged.
Model: opus-4-8
decryptFile now sets file.size/thumbnail.size from raw.info (undefined when absent) and carries an optional isDeleted on EnteFile. Plain EnteFile return, no caller changes; listFiles keeps filtering tombstones. Tests cover the three fields and the size-absent case.
Model: opus-4-8
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