♻️ refactor(web): migrate React modules from .js to .jsx and align entrypoint

- Rename React components/pages/utilities that contain JSX to `.jsx` across `web/src`
- Update import paths and re-exports to match new `.jsx` extensions
- Fix Vite entry by switching `web/index.html` from `/src/index.js` to `/src/index.jsx`
- Verified remaining `.js` files are plain JS (hooks/helpers/constants) and do not require JSX
- No runtime behavior changes; extension and reference alignment only

Context: Resolves the Vite pre-transform error caused by the stale `/src/index.js` entry after migrating to `.jsx`.

web/src/components/auth/LoginForm.jsx

@@ -19,7 +19,7 @@ For commercial licensing, please contact support@quantumnous.com
 
 import React, { useContext, useEffect, useState } from 'react';
 import { Link, useNavigate, useSearchParams } from 'react-router-dom';
-import { UserContext } from '../../context/User/index.js';
+import { UserContext } from '../../context/User';
 import {
   API,
   getLogo,
@@ -32,7 +32,7 @@ import {
   onGitHubOAuthClicked,
   onOIDCClicked,
   onLinuxDOOAuthClicked
-} from '../../helpers/index.js';
+} from '../../helpers';
 import Turnstile from 'react-turnstile';
 import {
   Button,
@@ -47,10 +47,10 @@ import Text from '@douyinfe/semi-ui/lib/es/typography/text';
 import TelegramLoginButton from 'react-telegram-login';
 
 import { IconGithubLogo, IconMail, IconLock } from '@douyinfe/semi-icons';
-import OIDCIcon from '../common/logo/OIDCIcon.js';
-import WeChatIcon from '../common/logo/WeChatIcon.js';
-import LinuxDoIcon from '../common/logo/LinuxDoIcon.js';
-import TwoFAVerification from './TwoFAVerification.js';
+import OIDCIcon from '../common/logo/OIDCIcon';
+import WeChatIcon from '../common/logo/WeChatIcon';
+import LinuxDoIcon from '../common/logo/LinuxDoIcon';
+import TwoFAVerification from './TwoFAVerification';
 import { useTranslation } from 'react-i18next';
 
 const LoginForm = () => {

web/src/components/auth/RegisterForm.jsx

@@ -28,7 +28,7 @@ import {
   updateAPI,
   getSystemName,
   setUserData
-} from '../../helpers/index.js';
+} from '../../helpers';
 import Turnstile from 'react-turnstile';
 import {
   Button,
@@ -45,12 +45,12 @@ import {
   onGitHubOAuthClicked,
   onLinuxDOOAuthClicked,
   onOIDCClicked,
-} from '../../helpers/index.js';
-import OIDCIcon from '../common/logo/OIDCIcon.js';
-import LinuxDoIcon from '../common/logo/LinuxDoIcon.js';
-import WeChatIcon from '../common/logo/WeChatIcon.js';
+} from '../../helpers';
+import OIDCIcon from '../common/logo/OIDCIcon';
+import LinuxDoIcon from '../common/logo/LinuxDoIcon';
+import WeChatIcon from '../common/logo/WeChatIcon';
 import TelegramLoginButton from 'react-telegram-login/src';
-import { UserContext } from '../../context/User/index.js';
+import { UserContext } from '../../context/User';
 import { useTranslation } from 'react-i18next';
 
 const RegisterForm = () => {