fix: 修复批二 handler 缺失声明与 FlowSaveResult 类型收窄

src/main/capabilities/web-batch2.ts

@@ -44,16 +44,19 @@ register("WebBrowser_Switch_V1", async (ctx, node, args) => {
 });
 
 register("WebBrowser_Maximize", async (ctx, node) => {
+  const browser = await browserSession();
   browser.maximize();
   return true;
 });
 
 register("WebBrowser_Minimize", async (ctx, node) => {
+  const browser = await browserSession();
   browser.minimize();
   return true;
 });
 
 register("WebBrowser_Stop", async (ctx, node) => {
+  const browser = await browserSession();
   browser.stopLoading();
   return true;
 });
@@ -87,3 +90,4 @@ register("Element_StopAutoClosePopup", async (ctx, node) => {
   return { active: false, stopped };
 });
 
+