Changelog
- b283073 add doctor command for diagnosing the skm environment
- 6b5055a add fingerprint, info, and passphrase commands
- a9945e5 add import and export commands for single-key bundles
- 8a11e07 enrich copy command with --key, --dry-run, and IPv6 host parsing
- 09aa779 enrich ls command with fingerprint, agent state, and flags
- 2a0f547 extend interactive picker to delete, display, rename, and copy
- 8568780 refresh stale README badges and bump version examples