auto commit learn from history

[Undertone0809]

🚀 Feature Request

可以让 gcop 学习用户过去的 commit message history，以此作为 few shot 来指导生成 git commit message。

预期的使用方式

• 通过 .gcop 可以进行全局配置开启该功能，默认为关闭。
• 当 add project based config #126 这个 features 完成之后，可以基于项目的配置。

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Allows gcop to learn a user's past commit message history and use it as a few shot to guide the generation of git commit messages.

Intended usage

• This feature can be turned on globally via .gcop, and is turned off by default.
• When add project based config #126 this feature is complete, it can be configured on a project-by-project basis.