feat(cli): add --api-endpoint to set request OpenAI API endpoint

[Zhengqbbb]

Related ISSUE

#134

Type Of Change

• 🐞 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 📝 Document (This change requires a documentation update)
• 🎨 Theme style (Theme style beautification)
• ⚠ Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 🔨 Workflow (Workflow changes)

Clear Describe

• feat: add --api-endpoint to set request OpenAI API endpoint
• refactor: rename czg option --openai-token to --api-key

  Version compatibility has been completed

Description

--api-endpoint=<path>  
     Setup request OpenAI API endpoint to local (.config/.czrc) [default: "https:api.openai.com/v1"]

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