- Config commands (config add/list/remove) to map local audio folders to Kreativ-Tonies via TonieCloud household/tonie ids - tonies list command to look up household/tonie ids - sync command: diff-based upload of new tracks, pruning of removed chapters, and reordering to match local file order (via tonie-api) - Credentials resolved via env vars/CLI flags/prompt, never stored - Unit tests for config persistence and sync planning/apply logic Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>