Add initial project structure with essential files

- Created .gitignore to exclude build artifacts and dependencies.
- Added index.html as the main entry point for the application.
- Included LICENSE file with Apache 2.0 terms.
- Initialized package.json and package-lock.json for project dependencies.
- Added pnpm-lock.yaml for package management.
- Created QUICKSTART.md for setup instructions.
- Added README.md and README.zh-CN.md for project documentation in English and Chinese.

vite.config.ts

@@ -0,0 +1,34 @@
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+const DAEMON_PORT = Number(process.env.OCD_PORT) || 7456;
+
+export default defineConfig({
+  plugins: [react()],
+  server: {
+    port: 5173,
+    proxy: {
+      '/api': {
+        target: `http://127.0.0.1:${DAEMON_PORT}`,
+        changeOrigin: true,
+        // Daemon uses SSE on /api/chat — disable Vite's buffering.
+        configure: (proxy) => {
+          proxy.on('proxyRes', (proxyRes) => {
+            proxyRes.headers['cache-control'] = 'no-cache, no-transform';
+          });
+        },
+      },
+      // The daemon serves persisted artifacts and the shared device-frame
+      // library; proxy them through so the dev SPA can iframe them without
+      // hitting a different origin.
+      '/artifacts': {
+        target: `http://127.0.0.1:${DAEMON_PORT}`,
+        changeOrigin: true,
+      },
+      '/frames': {
+        target: `http://127.0.0.1:${DAEMON_PORT}`,
+        changeOrigin: true,
+      },
+    },
+  },
+});