refactor: 移除所有录制功能代码

- 删除录制相关页面组件（RecordReplayPage、ReplayListPage、ReplayPlayerPage）
- 删除录制工具文件（recordEventsDb、recordUtils、useRecorder、tabUtils）
- 清理 background.ts 和 content.ts 中的录制代码
- 更新 App.tsx 移除录制路由
- 清理 messages.tsx 中的消息定义
- 删除 types.tsx 中的录制状态
- 移除 package.json 中的 rrweb 相关依赖
- 更新 wxt.config.ts 移除 offscreen、downloads 权限
- 删除 offscreen 目录

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

entrypoints/popup/App.tsx

@@ -1,10 +1,7 @@
 // App.js
 import { HashRouter as Router, Routes, Route } from 'react-router-dom';
 import TimestampPage from './pages/TimestampPage';
-import RecordReplayPage from './pages/RecordReplayPage';
 import TestPage from './pages/TestPage';
-import ReplayListPage from './pages/ReplayListPage';
-import ReplayPlayerPage from './pages/ReplayPlayerPage';
 import Navbar from '../../components/Navbar';
 import RoutePersistence from '../../components/RoutePersistence';
 import './App.css';
@@ -13,8 +10,6 @@ import './App.css';
 const navItems = [
   { path: '/test', label: '测试页面', element: <TestPage /> },
   { path: '/', label: '时间戳', element: <TimestampPage /> },
-  { path: '/record-replay', label: '录制', element: <RecordReplayPage /> },
-  { path: '/replay-list', label: '历史回放', element: <ReplayListPage /> },
 ];
 
 function App() {
@@ -28,7 +23,6 @@ function App() {
           {navItems.map((item) => (
             <Route key={item.path} path={item.path} element={item.element} />
           ))}
-          <Route path="/replay/:id" element={<ReplayPlayerPage />} />
         </Routes>
       </div>
     </Router>