Ported from PR #407: `robot connect` supports the qoder/qoderwork channels,
but skill setup neither probed ~/.qoder / ~/.qoderwork in its all-targets
checklist nor knew a qoderwork install path, so Qoder/QoderWork hosts missed
the skill routing. Consistency is enforced by TestAgentSkillPathsCoversSetupHomes.
- Add skill find (keyword search) and skill get (download to temp dir)
using mcp.dingtalk.com endpoints; keep skill add (aihub download)
- Add hidden skill search hint for old usage
- List utility commands in root help; keep skill visible (not hidden)
- Extend tests for new subcommands and root help
Made-with: Cursor