refactor: 重构角色配置中模型及GPT相关请求参数结构

[MarioJames]

💻 变更类型 | Change Type

• [ ] ✨ feat
• [ ] 🐛 fix
• [x] ♻️ refactor
• [ ] 💄 style
• [ ] 🔨 chore
• [ ] ⚡️ perf
• [ ] 📝 docs

🔀 变更说明 | Description of Change

重构角色配置中模型及GPT相关请求参数结构 角色下载数据中未填充模型以及补全参数信息，需要调整下

📝 补充信息 | Additional Information

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Name	Status	Preview	Comments	Updated (UTC)
lobe-vidol	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 29, 2024 9:11am

[lobehubbot]

👍 @MarioJames
Thank you for raising your pull request and contributing to our Community Please make sure you have followed our contributing guidelines. We will review it as soon as possible. If you encounter any problems, please feel free to connect with us.\ 非常感谢您提出拉取请求并为我们的社区做出贡献，请确保您已经遵循了我们的贡献指南，我们会尽快审查它。 如果您遇到任何问题，请随时与我们联系。

[lobehubbot]

❤️ Great PR @MarioJames ❤️
The growth of project is inseparable from user feedback and contribution, thanks for your contribution!\ 项目的成长离不开用户反馈和贡献，感谢您的贡献!