🎨 chore(web): apply ESLint and Prettier auto-fixes (baseline)

- Ran: bun run eslint:fix && bun run lint:fix
- Inserted AGPL license header via eslint-plugin-header
- Enforced no-multiple-empty-lines and other lint rules
- Formatted code using Prettier v3 (@so1ve/prettier-config)
- No functional changes; formatting-only baseline across JS/JSX files

web/src/pages/NotFound/index.jsx

@@ -19,16 +19,21 @@ For commercial licensing, please contact support@quantumnous.com
 
 import React from 'react';
 import { Empty } from '@douyinfe/semi-ui';
-import { IllustrationNotFound, IllustrationNotFoundDark } from '@douyinfe/semi-illustrations';
+import {
+  IllustrationNotFound,
+  IllustrationNotFoundDark,
+} from '@douyinfe/semi-illustrations';
 import { useTranslation } from 'react-i18next';
 
 const NotFound = () => {
   const { t } = useTranslation();
   return (
-    <div className="flex justify-center items-center h-screen p-8">
+    <div className='flex justify-center items-center h-screen p-8'>
       <Empty
         image={<IllustrationNotFound style={{ width: 250, height: 250 }} />}
-        darkModeImage={<IllustrationNotFoundDark style={{ width: 250, height: 250 }} />}
+        darkModeImage={
+          <IllustrationNotFoundDark style={{ width: 250, height: 250 }} />
+        }
         description={t('页面未找到，请检查您的浏览器地址是否正确')}
       />
     </div>