import { defineConfig, loadEnv } from 'vite'; import react from '@vitejs/plugin-react'; export default defineConfig(({ mode }) => { // For development, load from .env files const env = loadEnv(mode, '.', ''); return { plugins: [react()], // Don't embed API keys at build time - let them be read at runtime define: { 'process.env.NODE_ENV': JSON.stringify(mode) } }; });