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fix(miniapps): Tab 切换后小程序窗口不可见问题修复 - #149
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When switching bottom tabs away from ecosystem and back, the miniapp window became invisible (opacity 0) because: 1. EcosystemTab uses React 19 <Activity mode='hidden'> which unmounts/pauses the child tree 2. MiniappWindowStack slots get unregistered when unmounted 3. But runtime app state remained 'active' with no re-activation on return Fix: Call activateApp() when EcosystemTab remounts to restore the active miniapp's visibility state. Adds E2E regression test for tab-switch visibility.
Add slot status management in runtime-refs.ts: - slotStatusMap tracks slot ready/lost state - subscribeSlotStatus() for React subscription - getSlotStatus() for querying Add useSlotStatus hook using useSyncExternalStore MiniappWindowPortal now: - Subscribes to slot status - Uses fallback container when slot lost - Disables layoutId when slot lost to prevent animation issues - Sets visibility:hidden when slot lost This fixes miniapp becoming invisible after tab switch.
Replace Activity mode='hidden' with display:none for EcosystemTab to prevent MiniappWindowStack slots from being unregistered during tab switch. This ensures miniapp windows remain visible after switching tabs away from ecosystem and back. Activity mode='hidden' may pause/unmount components causing slot unregistration, while display:none keeps the component fully mounted.
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问题描述
启动小程序后，切换底部 Tab 离开生态页再切回，小程序窗口变为不可见（opacity: 0）。
根本原因
MiniappWindow在StackflowApp全局层渲染，通过createPortal把内容传送到MiniappWindowStack的 slot 中MiniappWindowStack在EcosystemDesktop内，被Activity mode='hidden'包裹Activity可能暂停组件，导致 slot 被注销MiniappWindowPortal获取不到portalHost，返回 null 或动画到错误位置解决方案
方案 1: Slot 生命周期机制
runtime-refs.ts中添加 slot 状态管理（slotStatusMap）useSlotStatushook 订阅 slot 状态MiniappWindowPortal当 slot lost 时使用 fallback 容器，禁用 layoutId方案 2: 避免 Activity 包裹 EcosystemTab
display: none替代Activity mode='hidden'控制EcosystemTab可见性变更文件
src/services/miniapp-runtime/hooks.ts- 新增useMiniappVisibilityRestore和useSlotStatussrc/services/miniapp-runtime/runtime-refs.ts- 添加 slot 状态管理src/components/ecosystem/miniapp-window.tsx- 使用 slot 状态控制渲染src/stackflow/activities/MainTabsActivity.tsx- EcosystemTab 使用 display:nonesrc/StackflowApp.tsx- 添加 fallback 容器src/components/ecosystem/miniapp-window.stories.tsx- 添加 Tab 切换测试