收紧移动壳能力声明与迟到响应边界

移动壳卸载后丢弃迟到 HostBridge 响应

移动壳 ShellApp 测试覆盖卸载后异步响应不注入

移动壳配置检查拒绝只返回 unsupported 的声明能力

共享决策记录补充移动壳消息注入和能力声明约定

apps/mobile-shell/src/shell/ShellApp.test.tsx

@@ -368,6 +368,60 @@ describe('ShellApp QR scanner HostBridge flow', () => {
 
     warnSpy.mockRestore();
   });
+
+  test('drops delayed HostBridge responses after shell unmount', async () => {
+    const ShellApp = await importShellApp();
+    let resolveNetworkStatus:
+      (state: Awaited<ReturnType<typeof Network.getNetworkStateAsync>>) => void =
+        () => {
+          throw new Error('network status resolver missing');
+        };
+    vi.mocked(Network.getNetworkStateAsync).mockReturnValueOnce(
+      new Promise((resolve) => {
+        resolveNetworkStatus = resolve;
+      }),
+    );
+    const { unmount } = render(<ShellApp />);
+
+    const webViewProps = shellHarness.webViewProps.current as {
+      onMessage?: (event: {
+        nativeEvent: {
+          data: string;
+          url: string;
+        };
+      }) => void;
+      source?: { uri?: string };
+    };
+    const webViewUrl = webViewProps.source?.uri ?? 'https://app.genarrative.world/';
+
+    webViewProps.onMessage?.({
+      nativeEvent: {
+        data: JSON.stringify({
+          bridge: HOST_BRIDGE_PROTOCOL,
+          version: HOST_BRIDGE_VERSION,
+          id: 'network-request-1',
+          method: 'network.status',
+        }),
+        url: webViewUrl,
+      },
+    });
+    unmount();
+
+    resolveNetworkStatus({
+      isConnected: true,
+      isInternetReachable: true,
+      type: Network.NetworkStateType.WIFI,
+    });
+
+    await waitFor(() => {
+      expect(Network.getNetworkStateAsync).toHaveBeenCalled();
+    });
+    expect(
+      shellHarness.injectedScripts.some((script) =>
+        script.includes('network-request-1'),
+      ),
+    ).toBe(false);
+  });
 });
 
 describe('ShellApp HostBridge event injection', () => {

apps/mobile-shell/src/shell/ShellApp.tsx

@@ -89,6 +89,7 @@ type MobileWebViewHttpErrorEvent = {
 
 export default function ShellApp() {
   const webViewRef = useRef<WebView>(null);
+  const isShellMountedRef = useRef(true);
   const nativeCanGoBackRef = useRef(false);
   const h5CanGoBackRef = useRef(false);
   const [canGoBack, setCanGoBack] = useState(false);
@@ -112,11 +113,22 @@ export default function ShellApp() {
   const reloadCurrentWebView = useCallback(() => {
     webViewRef.current?.reload();
   }, []);
+  useEffect(() => {
+    isShellMountedRef.current = true;
+
+    return () => {
+      isShellMountedRef.current = false;
+    };
+  }, []);
   const injectHostBridgeMessage = useCallback(
     (
       message: unknown,
       onError: (error: unknown) => void,
     ) => {
+      if (!isShellMountedRef.current) {
+        return;
+      }
+
       try {
         webViewRef.current?.injectJavaScript(
           buildHostBridgeMessageScript(message),