fix(core): 调整代理配置项显隐与默认地址

[CookSleep]

Summary

• 调整 ChatLuna 主插件与子插件的代理配置 schema，让 proxyAddress 仅在启用对应代理开关后显示，并直接跟在触发项下方。
• 将主插件和子插件的自定义代理默认地址统一为 http://127.0.0.1:7897。
• 统一中英文 schema 文案，将“遵循全局代理设置”明确为“遵循 ChatLuna 主插件的全局代理设置”。

Verification

• yarn fast-build core（仓库当前会额外打印 yakumo-mocha / mocha 缺失警告，但 core 构建产物已正常生成）

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 77ec8371-41f3-447b-99e2-43139e5194cf

📥 Commits

Reviewing files that changed from the base of the PR and between d71d1c5 and 01734ed.

⛔ Files ignored due to path filters (2)

• packages/core/src/locales/en-US.schema.yml is excluded by !**/*.yml
• packages/core/src/locales/zh-CN.schema.yml is excluded by !**/*.yml

📒 Files selected for processing (1)

• packages/core/src/config.ts

概览

重构代理相关配置架构，调整了 isProxy 的处理方式并更新默认值。将 isProxy 从独立的 Schema 对象移至 Schema.intersect 中，同时将 proxyAddress 的默认值从空字符串改为 http://127.0.0.1:7897。

变更

内聚块 / 文件(s)	摘要
代理配置架构重构 packages/core/src/config.ts	使用 Schema.intersect 重组代理配置，调整 isProxy 处理逻辑，将 proxyAddress 默认值从空字符串更新为 http://127.0.0.1:7897。
Chat 插件配置默认值更新 packages/core/src/services/chat.ts	更新 ChatLunaPlugin.Config 中 proxyMode 为 'on' 时的 proxyAddress 默认值，改为 http://127.0.0.1:7897。

预估代码审查工作量

🎯 2 (Simple) | ⏱️ ~8 分钟

可能相关的 PR

• [Fix] Fix adapter plugin apiKeys configuration save bug #594：修改了 packages/core/src/services/chat.ts 中的 ChatLunaPlugin 配置架构和代理相关的 union/schema 分支。
• [Feature] 支持 mcp 使用代理 #618：修改了代理相关配置和 ChatLunaPlugin Config/默认值，并扩展了 fetch 以支持代理和 MCP 代理集成。
• [Fix] Fix room resolution and proxy configuration issues #568：修改了代理相关配置，更新了 proxyAddress/isProxy 的默认值处理。

建议审阅者

• dingyi222666

诗歌

🐰 默认值兔兔来跳跃，
代理地址展新貌，
架构调整细致妙，
从空字符串到网址巧，
配置重组路更好！✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	标题准确概括了主要变更：调整代理配置项的显隐逻辑和更新默认地址，与代码改动相符。
Description check	✅ Passed	描述详细说明了三个方面的改动：代理配置schema调整、默认地址统一、以及文案统一，与实际代码变更相符。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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• Create PR with unit tests

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[gemini-code-assist]

Code Review

This pull request updates the proxy configuration schema and localization files, notably introducing a default proxy address of http://127.0.0.1:7897. Feedback focuses on aligning the localization descriptions with this change, as the existing 'if empty' fallback documentation is now potentially misleading given the new default value. Suggestions were also made to include example proxy formats in the Chinese localization to maintain consistency with the English version.

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@packages/core/src/config.ts`:
- Around line 178-188: The Config interface's proxyAddress should be optional to
match the schema: change the Config declaration for proxyAddress from a required
string to proxyAddress?: string. Then update locations in
packages/core/src/services/chat.ts where this.config.proxyAddress is used
(references in the Chat service methods that read this.config.proxyAddress) to
handle undefined safely—either guard before use, provide a sensible default
(e.g., the schema default 'http://127.0.0.1:7897'), or throw a clear error—so no
undefined is passed to functions expecting a string.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: e319a86e-ad38-4ce2-a11a-9abe1dacc237

📥 Commits

Reviewing files that changed from the base of the PR and between fe99839 and d71d1c5.

⛔ Files ignored due to path filters (4)

• packages/core/src/locales/en-US.schema.plugin.yml is excluded by !**/*.yml
• packages/core/src/locales/en-US.schema.yml is excluded by !**/*.yml
• packages/core/src/locales/zh-CN.schema.plugin.yml is excluded by !**/*.yml
• packages/core/src/locales/zh-CN.schema.yml is excluded by !**/*.yml

📒 Files selected for processing (2)

• packages/core/src/config.ts
• packages/core/src/services/chat.ts