接入热身入口原生导航

儿童动作热身入口在原生壳内优先走受控导航

新增 HostBridge 真实导航请求测试

同步宿主壳协议文档和共享记忆

src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

@@ -316,6 +316,7 @@ import {
   recordRpgEntryWorldGalleryPlay,
   remixRpgEntryWorldGallery,
 } from '../../services/rpg-entry/rpgEntryLibraryClient';
+import { navigateHostNativePage } from '../../services/host-bridge/hostBridge';
 import {
   getRpgProfilePlayStats,
   submitRpgProfileFeedback,
@@ -7087,7 +7088,12 @@ export function PlatformEntryFlowShellImpl({
   }, [setSelectionStage]);
 
   const startChildMotionDemo = useCallback(() => {
-    window.location.assign('/child-motion-demo');
+    void (async () => {
+      const navigated = await navigateHostNativePage('/child-motion-demo');
+      if (!navigated) {
+        window.location.assign('/child-motion-demo');
+      }
+    })();
   }, []);
 
   const resolveBabyObjectMatchRuntimeDraft = useCallback(