[wangpeng1426-blip]

Summary

macOS Codex Desktop 会校验原生工具进程、父进程和祖父进程的代码签名身份。codexhost 使用临时签名的自带 Node 运行 Host 时，即使 MCP 工具使用官方 Node，祖父进程仍会导致 missing-code-signing-identity，随后 codex_app 报 Codex app tools pipe closed。

启动器现在默认选用当前 Desktop 安装包内的 Contents/Resources/cua_node/bin/node，使 Host 和工具处于 Desktop 接受的签名进程链中。保留用户显式指定的 --node；旧 Desktop 缺少该运行时时，保留安装版 Node 或 npm Node 回退。

npm 入口在 macOS 不再自动注入会覆盖默认选择的 --node，继续通过现有 CODEXHOST_NPM_NODE_PATH 提供回退。Windows/Linux 的自动参数保持不变。Desktop、CLI 和工具的身份校验、鉴权与审批逻辑没有修改。

Related issues

Related: #157

Test plan

• cargo test --locked -p codexhost-launcher --bin codexhost：64 项通过，覆盖 Desktop Node 默认选择、显式覆盖、安装版与 npm 回退。
• vitest run --config tests/vitest.config.js tests/release/npm-package.test.mjs：42 项通过，包括生成的 npm 入口在 macOS/Windows/Linux 下的实际 spawn 参数和显式 Node 覆盖。
• 启动器 cargo clippy -- -D warnings、cargo fmt --all --check：通过。
• 修改文件 ESLint、Prettier、git diff --check、node tools/check-boundaries.mjs：通过。
• macOS arm64、Desktop 26.1021.31345 / build 21828、Desktop Node 24.22.1：调用 Desktop 随包身份校验器做对照，临时签名 Host Node 被拒绝，Desktop 签名 Node 通过。
• 同版本独立桌面实例完整启动：Host ready，Renderer installed 且失败数为 0；经实际 Host 创建的临时会话中，codex_app 为 connected、发现 58 个工具，未再出现上述签名拒绝或管道关闭错误。另通过真实 Desktop 管道成功执行只读 list_threads。

实机验收使用 v0.13.3 安装版加同一默认运行时选择修复，并单独移植了当前 main 已有的 Renderer Host 注册表兼容修复；本 PR 不重复包含该 Renderer 修复。npm 安装包的完整真机启动、Windows/Linux 真机未验证，npm 入口的跨平台检查使用生成脚本与进程替身。

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Reviewing files that changed from the base of the PR and between fde26c3 and 394c371.

Files selected for processing: 3

• crates/launcher/src/main.rs
• crates/launcher/tests/cli.rs
• docs/platforms/macos/macos-native-tools.md

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• docs/platforms/macos/macos-native-tools.md

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• GitHub Check: Check windows-latest
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Code guidelines: 1

AGENTS.md — auto-discovered

Path-based instructions: 1

Source excerpt: `codexhost` runs external Agent Harnesses as independent Threads inside Codex Desktop, preserving the official shell and native Codex path.

CodeRabbit inference engine (AGENTS.md)

Files:

• crates/launcher/tests/cli.rs
• crates/launcher/src/main.rs

📝 Summary

Summary by CodeRabbit

• 功能
  • macOS 启动时优先使用所选 Desktop 安装目录中的 Node；若不可用，则依次回退到其他可用的 Node。
  • macOS 未显式指定 --node 时，由 Launcher 自动选择 Node；显式指定的路径仍优先使用。npm 启动器不再覆盖自动选择。
• 改进
  • Windows 使用 --custom-install 时，路径必须是已存在的绝对目录。
  • 启动时优先报告启动资源解析错误，再报告 Desktop 发现错误。

Launcher 调整 Desktop 安装发现和启动资源解析顺序。macOS 默认 Node 优先使用所选 Desktop 安装中的 Node，并在其不可用时回退。npm wrapper 在 macOS 不再自动传入当前 Node 路径；显式 --node 的优先级保持不变。

Changes: Launcher 启动与 Node 解析

Layer / File(s)	Summary
安装发现与资源解析顺序 crates/launcher/src/main.rs, crates/launcher/tests/cli.rs	Windows 自定义安装目录先验证为绝对且已存在的目录。Linux 和非 Linux 启动流程先发现 Desktop，再解析资源。ResolvedLaunchOptions 不再保存 custom_install_root。CLI 测试补充安装根目录和控制台环境设置，并覆盖 macOS npm 启动输出。
macOS Node 选择与 wrapper 行为 crates/launcher/src/main.rs, scripts/release/prepare-npm.mjs, tests/release/npm-package.test.mjs, docs/platforms/macos/macos-native-tools.md	macOS 默认 Node 优先使用 Desktop 安装内的 Node；不可用时依次回退到捆绑 Node 和 npm Node。显式 --node 优先。npm wrapper 在 macOS 不自动传入当前 Node 路径，其他平台在未指定 --node 时仍会注入。测试覆盖这些选择规则；文档补充 Node 选择、身份验证和恢复控制台的说明。

Priority: Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant Launcher
  participant DesktopDiscovery
  participant LaunchOptionsResolve
  participant DesktopNode
  participant BundledNode
  participant NpmNode
  Launcher->>DesktopDiscovery: 发现 Desktop 安装
  Launcher->>LaunchOptionsResolve: 传入可用的安装根目录
  alt 显式提供 --node
    LaunchOptionsResolve->>LaunchOptionsResolve: 解析显式 Node 路径
  else macOS 未显式提供 --node
    LaunchOptionsResolve->>DesktopNode: 检查 Desktop 安装内的 Node
    alt Desktop Node 不可用
      LaunchOptionsResolve->>BundledNode: 检查捆绑 Node
      alt 捆绑 Node 不可用
        LaunchOptionsResolve->>NpmNode: 使用 npm 提供的 Node
      end
    end
  end

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Suggested labels: 类型:缺陷修复, 范围:安装更新

Suggested reviewers: bytepioneer-ai, scp-008-1

Merge Risk: Minimal · up to 394c3

The launcher’s macOS Node-selection change has no established issue that needs correction before merge. Complete the normal release checks.

Pre-merge checks: 4

Check name	Status	Explanation
Title check		标题准确概括了主要变更：macOS 使用由 Desktop 签名的 Node。标题简洁且与代码、文档和测试变更一致。
Description check		描述与变更直接相关。它说明了 macOS Node 选择、显式覆盖、回退逻辑、npm 行为和测试结果。
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

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Inline comments:
Review comments at @scripts/release/prepare-npm.mjs:
- Line 590: 调整 prepare-npm 的 `--node` 注入逻辑，使 macOS npm 启动时早期控制台也能通过
`CODEXHOST_NPM_NODE_PATH` 找到 Node；保留其他平台现有的回退行为。

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Files selected for processing: 4

• crates/launcher/src/main.rs
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• tests/release/npm-package.test.mjs

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• GitHub Check: Check ubuntu-22.04
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Additional context used

Code guidelines: 1

AGENTS.md — auto-discovered

Path-based instructions: 1

Source excerpt: `codexhost` runs external Agent Harnesses as independent Threads inside Codex Desktop, preserving the official shell and native Codex path.

CodeRabbit inference engine (AGENTS.md)

Files:

• scripts/release/prepare-npm.mjs
• tests/release/npm-package.test.mjs
• docs/platforms/macos/macos-native-tools.md
• crates/launcher/src/main.rs