cursor done.

server/utils/shutdown.js

@@ -0,0 +1,41 @@
+const { closeDatabase } = require('../database');
+
+function registerShutdown(server) {
+  let isShuttingDown = false;
+
+  async function shutdown(reason) {
+    if (isShuttingDown) return;
+    isShuttingDown = true;
+
+    if (reason) {
+      console.log(`\n收到 ${reason}，正在关闭服务器...`);
+    }
+
+    await new Promise((resolve) => {
+      server.close(() => {
+        console.log('HTTP 服务器已关闭');
+        resolve();
+      });
+    });
+
+    await closeDatabase();
+    process.exit(reason === 'uncaughtException' || reason === 'unhandledRejection' ? 1 : 0);
+  }
+
+  process.on('SIGINT', () => shutdown('SIGINT'));
+  process.on('SIGTERM', () => shutdown('SIGTERM'));
+
+  process.on('uncaughtException', (err) => {
+    console.error('未捕获的异常:', err);
+    shutdown('uncaughtException');
+  });
+
+  process.on('unhandledRejection', (reason) => {
+    console.error('未处理的 Promise 拒绝:', reason);
+    shutdown('unhandledRejection');
+  });
+}
+
+module.exports = {
+  registerShutdown
+};