[MistEO]

上一次解压残留的 changes.json 被占用时，清理失败会被忽略。下一份全量包继续解压后，客户端可能按旧清单执行增量更新。

本次在预清理失败时返回现有的本地化 extractFailed 错误，保留下载包和待安装记录。释放占用后可以手动重试，解压、配置备份和安装都在预清理成功之后执行。

通过了独立代码 review。新增测试直接加载生产更新服务，覆盖 IPC 字符串错误、待安装记录保留、后续命令未调用和成功重试。pnpm test 121 项通过、1 项跳过，pnpm build 通过。测试使用 Tauri 边界 mocks，未触发真实应用更新或重启。

基于 main c321532。#394 的安装后清理处理针对另一阶段，#416 的启动安装调整也保留了这个预清理入口。

Sourcery 总结

要求暂存目录清理成功后才能继续，避免旧的已提取更新文件混入新安装。

错误修复：

• 如果清理上一次提取目录失败，则中止更新安装，返回本地化的提取错误，并保留待处理的更新以便重试。

测试：

• 添加集成式测试，覆盖清理失败处理、待处理更新的保留、后续操作中止以及手动重试成功等情况。

Original summary in English

Summary by Sourcery

Prevent stale extracted update files from being mixed into a new installation by requiring staging cleanup to succeed before proceeding.

Bug Fixes:

• Abort update installation when cleanup of the previous extraction directory fails, returning a localized extraction error and preserving the pending update for retry.

Tests:

• Add integration-style coverage for cleanup failure handling, pending update preservation, aborted follow-up operations, and successful manual retry.

AI 使用信息：

• 实现、内部审查：Agent 为 Codex；模型为 gpt-6-astra；思考强度为 ultra。内部子代理继承父任务配置。
• 审计交叉审查：Agent 为 Codex；模型为 gpt-6.1-sol；思考强度为 max（协调调用选定）。

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[chatgpt-codex-connector]

Codex Review Summary: ✅ Completed

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-11T02:28:57.199574Z	085c8c9	Draft marked ready

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