技能命令 - Theo API Docs

`theo skill init`

生成一個新的技能項目腳手架：

theo skill init [directory]

創建 theo-skill.json（清單模板）和 README.md。

`theo skill validate`

校驗技能清單：

theo skill validate [directory]

[theo] ✓ Manifest is valid: "My Skill" v1.0.0
[theo]   Category: productivity
[theo]   Tools: 2
[theo]   Permissions: read:artifacts, execute:tools
[theo]   Review tier: staff (requires staff review)

`theo skill publish`

將技能提交到市場：

theo skill publish [directory]

讀取 theo-skill.json，附加 README.md，進行校驗並提交審核。

[theo] Submitting "Insurance Quoting" v1.0.0...
[theo] ✓ Submitted for review. You'll be notified when approved.
[theo]   Review tier: staff