Rollback frontend and config changes to commit a9a7e98 state.

Restore project files to match the requested baseline before subsequent updates.

Made-with: Cursor

frontend/vite.config.js

@@ -1,18 +1,9 @@
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
-import path from 'node:path'
-import { fileURLToPath } from 'node:url'
-
-const __dirname = path.dirname(fileURLToPath(import.meta.url))
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
-  resolve: {
-    alias: {
-      '@': path.resolve(__dirname, './src'),
-    },
-  },
   build: {
     chunkSizeWarningLimit: 2000,
   },