feat: revert OpenAI support

[noscripter]

Description by Korbit AI

What change is being made?

Reintroduce OpenAI support to the command line translator, allowing translation options via iciba, deepseek, and OpenAI, with configurable API keys and custom API hosts for OpenAI.

Why are these changes being made?

The pull request reinstates OpenAI support to enhance the versatility of the translator by leveraging OpenAI's capabilities. This update offers users the choice of translation sources and improves configuration flexibility, accommodating various use cases with the ability to switch between APIs via custom settings.

Is this description stale? Ask me to generate a new description by commenting /korbit-generate-pr-description

---

[!IMPORTANT] Reintroduces OpenAI support in fanyi CLI with configurable API key and host, updates documentation and configuration handling.

• Behavior:
  • Reintroduces OpenAI support in index.mjs for translations, configurable via OPENAI_API_KEY and OPENAI_API_HOST.
  • Updates bin/fanyi.mjs to handle new configuration options for OpenAI.
• Documentation:
  • Updates README.md to include instructions for setting up OpenAI API key and host.
  • Adds OpenAI to the list of supported translation sources in README.md.
• Configuration:
  • Modifies fanyi config set command in bin/fanyi.mjs to support OPENAI_API_KEY and OPENAI_API_HOST.
• Misc:
  • Adds "openai" to keywords in package.json.

^{This description was created by for 68632b7932f67a1b10dc3f0af6b52a70b8836375. You can customize this summary. It will automatically update as commits are pushed.}

[coderabbitai[bot]]

Walkthrough

本次更改重新引入了 OpenAI 作为翻译源，并在 README、配置命令和主翻译逻辑中增加了对 OpenAI API 的支持。新增了相关配置项（如 API Key 和自定义 Host），并完善了使用说明和错误提示，支持与现有 iciba、deepseek 并存。

Changes

文件/分组	变更摘要
README.md	更新文档，重新添加 OpenAI 作为翻译源，补充配置说明、示例命令和变更日志，详细介绍 OpenAI 相关设置。
bin/fanyi.mjs	配置命令支持设置 OPENAI_API_KEY 和 OPENAI_API_HOST，帮助信息增加 OpenAI 配置示例。
index.mjs	主翻译逻辑新增 OpenAI API 支持，处理相关配置项，完善错误提示，与 iciba、deepseek 并存。

Sequence Diagram(s)

sequenceDiagram
    participant 用户
    participant CLI
    participant 配置
    participant OpenAI API
    participant iciba/deepseek

    用户->>CLI: 运行翻译命令
    CLI->>配置: 读取 openai、OPENAI_API_KEY、OPENAI_API_HOST
    alt openai 启用且 API Key 存在
        CLI->>OpenAI API: 发送翻译请求（带系统提示和用户词条）
        OpenAI API-->>CLI: 返回翻译结果
        CLI->>用户: 输出翻译（带渐变样式）
    else deepseek 启用
        CLI->>deepseek: 发送翻译请求
        deepseek-->>CLI: 返回翻译结果
        CLI->>用户: 输出翻译
    else iciba 启用
        CLI->>iciba: 发送翻译请求
        iciba-->>CLI: 返回翻译结果
        CLI->>用户: 输出翻译
    end

Possibly related PRs

• afc163/fanyi#101：该 PR 移除 OpenAI 支持，与本次重新引入 OpenAI 的改动直接冲突且相关。

Suggested labels

size:S

Poem

🐇
OpenAI 归队，翻译更灵活，
配置新钥匙，主机随你设。
彩色输出词，文档细细说，
兔子敲键盘，功能又一波！
🎉✨

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📥 Commits

Reviewing files that changed from the base of the PR and between 68632b7932f67a1b10dc3f0af6b52a70b8836375 and 9f6c39034ac29faf0a8f0aa7cb8561d990672919.

📒 Files selected for processing (1)

• index.mjs (4 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• index.mjs

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[petercat-assistant[bot]]

Walkthrough

This pull request reintroduces OpenAI support to the Fānyì (翻译) project. It updates the README to reflect the change, modifies configuration options to include OpenAI API settings, and adjusts the main translation logic to incorporate OpenAI as a translation source alongside iciba and deepseek.

Changes

Files	Summary
README.md	Updated to include OpenAI as a translation source and added instructions for configuring OpenAI API keys and host.
bin/fanyi.mjs	Modified to handle new configuration options for OpenAI API key and host.
index.mjs	Enhanced to integrate OpenAI as a translation source, including error handling and API key validation.
package.json	Updated keywords to include 'openai'.

[tsejx]

你发给我的邮件已经收到了～辛苦了～

[afc163]

ci is broken

[afc163]

conflicted