Changelog
- 16075d2 docs(README): rewrite via create-readme skill
- 5b0b82b feat(cli): align with clig.dev + ship token/checkin/group commands
- 346a3ec docs: rewrite README with features, exit codes, and architecture
- c40643f fix(security): harden CLI IO and toolchain
- bc816ed docs: add CLAUDE.md with architecture + auth + DTO gotchas