修 bug 的子流程入口，把"发现问题"走到验证修复闭环，留下 report / analysis / fix-note 三份文件。触发：用户说"修 bug"、"有个问题"、"修复 XX"。只做路由，根据已有产物走 report / analyze / fix。简单问题走快速通道。
This skill does not declare a tool allowlist. The agent host applies whatever default tools are available at runtime.
SKILL.md / Manifest
https://raw.githubusercontent.com/liuzhengdongfortest/codestable/main/cs-issue/SKILL.mdRegistry
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