feat: 采集插件样式修改

extension/entrypoints/sidepanel/App.tsx

@@ -11,7 +11,7 @@
 import React, { useCallback, useEffect, useRef, useState } from 'react';
 import { createRoot } from 'react-dom/client';
 import { App as AntApp, ConfigProvider, Popover, Progress, Select } from 'antd';
-import { SettingOutlined, DownloadOutlined, ThunderboltOutlined, UploadOutlined, CloseOutlined } from '@ant-design/icons';
+import { SettingOutlined, DownloadOutlined, ThunderboltOutlined, UploadOutlined } from '@ant-design/icons';
 import type { ScanResult, ImageMaterial } from '../../src/collector/scan';
 import { cleanFilename } from '../../src/collector/url';
 import {
@@ -671,11 +671,9 @@ const App: React.FC = () => {
 
   return (
     <div className="page">
-      {/* ── 顶栏 ── */}
+      {/* ── 顶栏 ──（页内模式的收起 ✕ 按钮在宿主层渲染：要骑在面板边缘、一半在面板外，
+          iframe 会裁剪内容，按钮必须在 iframe 外；Esc 关闭仍走 closePanel） */}
       <div className="topbar">
-        {IN_PAGE && (
-          <button className="icon-btn" title="收起面板（Esc）" onClick={closePanel}><CloseOutlined /></button>
-        )}
         <div className="logo">套</div>
         <div>
           <h1>电商套图工作台</h1>