- Fix dry-run bug in ssh_alias_setup.sh (pub key check skipped when key was never generated)
- Remove dead code in ssh_run.sh (-- check after host arg was never reachable)
- Add --rsync/--delete flags to ssh_copy.sh for incremental rsync transfers
- Add -C/--compress flag to ssh_run.sh for slow-link connections
- Expand SKILL.md/SKILL.zh-CN.md: tunneling, jump host, SSH multiplexing, Docker ops
- Expand ssh-playbook.md: port forwarding, bastion, ControlMaster, structured troubleshooting table
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
