Complete CLI surface:
quak login interactive or QUAK_EMAIL/QUAK_PASSWORD
quak whoami print logged-in account
quak logout delete session
quak collections list all albums (--json)
quak files list files in a collection (--json)
quak get <id> download+decrypt a file (--out, --collection)
quak get-thumb <id> download+decrypt a thumbnail
quak backup <dir> full incremental backup
get/get-thumb search all collections for the file ID when --collection
is not specified. All listing commands support --json.
Live-tested: collections list, file list, single file download (472 KB
JPEG from the dev account, verified as valid JPEG with EXIF intact).
bin/quak.ts: commander-based CLI with login (interactive + QUAK_EMAIL/
QUAK_PASSWORD env vars), whoami, logout, backup commands. Session
stored at env-paths('quak').data/session.json (~/Library/Application
Support/quak/ on macOS, XDG on Linux).
src/backup.ts: runBackup downloads all files into originals/<id>.<ext>,
symlinks into collections/<name>/<title>, writes per-collection JSON
metadata at collections/<name>.json. Deduplicates across collections
(each file downloaded once). Skips existing originals on incremental
runs. Never crashes on single-file failure.
4 backup tests + live-tested against real Ente account.
