adding app v2 (#943)

www/appv2/vite.config.ts

@@ -0,0 +1,38 @@
+import tailwindcss from '@tailwindcss/vite';
+import react from '@vitejs/plugin-react';
+import path from 'path';
+import { defineConfig, loadEnv } from 'vite';
+
+export default defineConfig(({ mode }) => {
+  const env = loadEnv(mode, '.', '');
+  return {
+    plugins: [react(), tailwindcss()],
+    define: {
+      'process.env.GEMINI_API_KEY': JSON.stringify(env.GEMINI_API_KEY),
+    },
+    resolve: {
+      alias: {
+        '@': path.resolve(__dirname, '.'),
+      },
+    },
+    server: {
+      port: 3000,
+      host: '0.0.0.0',
+      // HMR disabled via env var for AI Studio
+      hmr: process.env.DISABLE_HMR !== 'true',
+      proxy: {
+        // API requests → backend
+        '/v1': {
+          target: env.SERVER_API_URL || 'http://localhost:1250',
+          changeOrigin: true,
+          ws: true,
+        },
+        // Auth proxy requests → Express auth server
+        '/auth': {
+          target: env.AUTH_PROXY_URL || 'http://localhost:3001',
+          changeOrigin: true,
+        },
+      },
+    },
+  };
+});