webview (macOS): App Nap exemption so background/occluded UIs stay live - #4
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macOS throttles/suspends 'idle' apps whose windows are fully occluded. For monitoring-style Glaze UIs (live charts, streaming logs, dashboards) that means the page's timers and rendering freeze as soon as another window covers the app — the backend keeps serving, the UI goes stale. ensure-app! now declares NSActivityUserInitiated via [NSProcessInfo beginActivityWithOptions:] once per process. A Glaze app with an open window is by definition user-initiated work, so the token is intentionally never ended. Failure to acquire the activity is non-fatal (best effort). Note: this removes the process-level suspension component. WebKit may still apply its own page-visibility throttling in some macOS versions; that behavior, if observed, is a documented platform limitation rather than an App Nap effect. glaze-test: 216 passed (includes the macOS WebView e2e suite). Fixes #2
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Fixes #2
改动
ensure-app!（每个进程一次）里通过[NSProcessInfo beginActivityWithOptions:]声明NSActivityUserInitiated（0x00FFFFFF），token 永不释放——开着窗口的 Glaze 应用按定义就是用户发起的工作。获取失败为非致命（best effort）。动机
macOS 会对窗口被完全遮挡的"空闲"应用做节流/挂起。监测类 UI（实时曲线、日志尾随、数据流视图）在窗口被盖住的一刻页面定时器与渲染冻结——后端仍在服务（curl 可见事件流），前端却停止刷新，用户感知为"应用坏了"。进程级 App Nap 豁免是 Electron 等框架对监测类应用的同款反制。
边界说明
本 PR 消除的是进程级挂起分量。WebKit 自身基于页面可见性的节流在不同 macOS 版本上的表现需要实测观察；若仍能观察到，那属于 WebKit 页面可见性行为，应作为平台限制文档化，而不是 App Nap 效应。
验证
raco test glaze-test/：216 通过（含 macOS WebView e2e：open/load/capture/navigate/close/on-close）