fix(compatibility): support delegated worktree shell environment pattern

[ken861222]

问题描述 (Problem Description)

在官方 Codex / ChatGPT Desktop 最新运行时版本（如 26.908.40834 (build 8881)）中，main.js 对 "worktree-shell-environment-config" 的定义由内联的 async({cwd, hostId}) => { ... } 重构为直接委托给实例方法：

"worktree-shell-environment-config":({cwd:e,hostId:t})=>this.readWorktreeShellEnvironment(e,t??`local`),

原有的 WORKTREE_SHELL_ENVIRONMENT_PATTERN 正则仅匹配旧版内联 async 函数形式，导致：

1. 优化器未能识别并补丁该 handler（recognizedCount: 0 < markerCount: 1），在 Manifest 中被标记为 "worktreeShellEnvironment": "unsupported-layout"。
2. /api/health 检查失败并显示健康状态异常（compatibility.status: "degraded"，static.cache.main.worktree-shell-environment 报 Cached locator did not resolve）。
3. 浏览器端启动时调用 /worktree-shell-environment-config，由于缺少限流合并与 2 秒 fallback 超时保护，耗时过长（10s~20s+），导致 Web 界面卡在启动加载（Loading）状态。

修复方案 (Solution)

1. 更新 OfficialRuntimeOptimizer.ts 中的 WORKTREE_SHELL_ENVIRONMENT_PATTERN，同时兼容旧版内联 async 块以及新版委托给 this.readWorktreeShellEnvironment 的方法调用形式。
2. 保持箭头函数词法作用域中的 this 绑定，确保包装后的 cache handler 正确执行。
3. 增加单元测试，覆盖新版委托语法的优化与合并调用行为。

测试验证 (Testing)

• node --test gateway/test/official-desktop-compat.test.cjs 相关单元测试通过。
• 在本地实际解包的最新官方 bundle（26.908.40834 / build 8881）上验证，补丁成功应用，/api/health 返回 ok: true，compatibility.status: "ok"，Web 端正常加载。

[RyensX]

感谢PR！其实这个问题今天我在测试Windows上时也发现了，不过不确定是否只有Windows有问题所以没有吧修复带上去。这里你做了我就不做了，等测完review会进行合并

[yorkane]

Tested on Linux (headless gateway, no Launcher) and it fixes the point as described.

• Official runtime: ChatGPT Desktop for Linux 26.908.40834 (build 318576267-1789148373000), codex-cli 0.154.0-alpha.6.2
• Base: 2.1.0 (f6fd79c) + this PR (b5c61e2)

Before (plain 2.1.0):

/api/health  ok:false   checks.compatibility:false
unsupportedFiles: ["main-DaMR-wdT.js:worktree-shell-environment"]
runtimeOptimizations.worktreeShellEnvironment: "unsupported-layout"
abnormalPoints: [{ id: "static.cache.main.worktree-shell-environment",
                   reason: "Expected 1 candidates but found 0" }]

After (2.1.0 + #52, bundle cache rebuilt so the optimizer re-patches main-*.js):

/api/health  ok:true    all 7 checks true
unsupportedFiles: []
runtimeOptimizations.worktreeShellEnvironment: "gateway-coalesced"
compatibility: 103 points / degraded 0 / unavailable 0

The patched main bundle now contains the cache wrapper (__opencodexWorktreeShellEnvironmentCache).

Test run: gateway/test/official-desktop-compat.test.cjs = 44/44 pass, including the new case.
Heads-up for anyone running the suite: the tests consume gateway/dist, so a plain node --test gateway/test/...
against a stale dist fails the new case until pnpm run build:gateway (i.e. pretest) has been run.

Note: unrelated to this PR, we are also tracking a chronic app-host / AppView RPC staleness problem in #53.

Environment: Linux x86_64, gateway started with pnpm run web:dev, desktop shell from the official Linux .deb.