feat: update codex live automation and plan flows

etc/servers/work-server/src/server.ts

@@ -9,6 +9,8 @@ import { PlanWorker } from './workers/plan-worker.js';
 const app = createApp();
 const planWorker = new PlanWorker(app.log);
 const chatService = new ChatService(app.log);
+const startedAt = Date.now();
+let shutdownPromise: Promise<void> | null = null;
 app.server.on('upgrade', chatService.attachUpgradeHandler());
 
 async function start() {
@@ -27,14 +29,32 @@ async function start() {
 }
 
 async function shutdown(signal: string) {
-  app.log.info(`Received ${signal}, closing server`);
+  if (shutdownPromise) {
+    return shutdownPromise;
+  }
 
-  await planWorker.stop();
-  chatService.close();
-  await app.close();
-  await shutdownNotificationProvider();
-  await db.destroy();
-  process.exit(0);
+  shutdownPromise = (async () => {
+    app.log.warn({
+      signal,
+      pid: process.pid,
+      uptimeSeconds: Math.round((Date.now() - startedAt) / 1000),
+      rssBytes: process.memoryUsage().rss,
+    }, 'Received shutdown signal');
+
+    try {
+      await planWorker.stop();
+      chatService.close();
+      await app.close();
+      await shutdownNotificationProvider();
+      await db.destroy();
+      process.exitCode = 0;
+    } catch (error) {
+      app.log.error({ error, signal }, 'Failed to shut down cleanly');
+      process.exitCode = 1;
+    }
+  })();
+
+  return shutdownPromise;
 }
 
 process.on('SIGINT', () => {