推进 INI 面板 shell handoff mount DOM contract helper

wasm-port/runtime/ui/ini-panel/launch.html

@@ -106,6 +106,8 @@
       createIniPanelLauncherLinkViewModel,
       createIniPanelShellViewModel,
       isSupportedIniPanelLaunchApiManifest,
+      createIniPanelShellSessionHandoffMountDomContract,
+      createIniPanelShellSessionHandoffMountDomReadiness,
       renderIniPanelShellSessionHandoffMountState,
     } from "./ui-shell.js";
 
@@ -180,6 +182,12 @@
           ),
         )
       ),
+      getShellSessionHandoffMountDomContract: (options) => (
+        createIniPanelShellSessionHandoffMountDomContract(options)
+      ),
+      getShellSessionHandoffMountDomReadiness: (options) => (
+        createIniPanelShellSessionHandoffMountDomReadiness(options ?? { documentRef: document })
+      ),
       renderShellSessionHandoffMountState: (renderState, options) => (
         renderIniPanelShellSessionHandoffMountState(renderState, options ?? { documentRef: document })
       ),