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.

daemon/cli.js

@@ -0,0 +1,36 @@
+#!/usr/bin/env node
+import { startServer } from './server.js';
+
+const args = process.argv.slice(2);
+let port = Number(process.env.OCD_PORT) || 7456;
+let open = true;
+
+for (let i = 0; i < args.length; i++) {
+  const a = args[i];
+  if (a === '-p' || a === '--port') {
+    port = Number(args[++i]);
+  } else if (a === '--no-open') {
+    open = false;
+  } else if (a === '-h' || a === '--help') {
+    console.log(`Usage: ocd [--port <n>] [--no-open]
+
+Starts a local daemon that:
+  * scans PATH for installed code-agent CLIs (claude, codex, gemini, opencode, cursor-agent, ...)
+  * serves a tiny web chat UI at http://localhost:<port>
+  * proxies messages (text + images) to the selected agent via child-process spawn
+`);
+    process.exit(0);
+  }
+}
+
+startServer({ port }).then(url => {
+  console.log(`[ocd] listening on ${url}`);
+  if (open) {
+    const opener = process.platform === 'darwin' ? 'open'
+      : process.platform === 'win32' ? 'start'
+      : 'xdg-open';
+    import('node:child_process').then(({ spawn }) => {
+      spawn(opener, [url], { detached: true, stdio: 'ignore' }).unref();
+    });
+  }
+});