A command-line archiver that enumerates every workspace and track in a Suno
account, downloads the MP3 audio and cover image, and writes per-track metadata
(prompt, model version, tags, timestamps, and generation IDs) alongside a master
library_index.json.
Authentication reuses an active browser session via Clerk token exchange or an
explicit cookie, avoiding manual per-track downloads. Passing --last-run restricts
subsequent runs to tracks created after the previous sync timestamp.