Fix web version injection

frontend/src/pages/auth/LoginPage.jsx

@@ -5,7 +5,6 @@ import { Download, PenTool } from 'lucide-react';
 import toast from 'react-hot-toast';
 import { SESSION_EXPIRED_MESSAGE, translateApiError } from '../../utils/session';
 import { resolveAndroidApkUrl } from '../../config/api';
-import packageInfo from '../../../package.json';
 
 export default function LoginPage() {
   const { login } = useAuth();
@@ -84,7 +83,7 @@ export default function LoginPage() {
         <p className="auth-link">
           ¿No tienes cuenta? <Link to="/register">Registrarse</Link>
         </p>
-        <p className="auth-version">Versión {packageInfo.version}</p>
+        <p className="auth-version">Versión {__APP_VERSION__}</p>
       </div>
     </div>
   );

frontend/vite.config.js

@@ -1,9 +1,13 @@
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
+import pkg from './package.json'
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
+  define: {
+    __APP_VERSION__: JSON.stringify(pkg.version),
+  },
   server: {
     host: '0.0.0.0',
     port: 5173,