fix(cli): dev/dev:offline Ctrl-C 退出防重入并支持二次强制退出

scripts/dev.js

@@ -6,12 +6,35 @@ const { startServer } = require('./serve-dist');
 
 const log = createLogger('dev');
 let serverRef = null;
+let shuttingDown = false;
 
 function runNode(scriptPath) {
   const result = spawnSync(process.execPath, [scriptPath], { stdio: 'inherit' });
   return result && Number.isFinite(result.status) ? result.status : 1;
 }
 
+function closeServer(server, exitCode) {
+  if (!server) {
+    process.exit(exitCode);
+    return;
+  }
+
+  try {
+    if (typeof server.closeIdleConnections === 'function') server.closeIdleConnections();
+    if (typeof server.closeAllConnections === 'function') server.closeAllConnections();
+  } catch {
+    // ignore
+  }
+
+  const forceTimer = setTimeout(() => process.exit(exitCode), 2000);
+  if (typeof forceTimer.unref === 'function') forceTimer.unref();
+
+  server.close(() => {
+    clearTimeout(forceTimer);
+    process.exit(exitCode);
+  });
+}
+
 async function main() {
   const elapsedMs = startTimer();
   log.info('开始', { version: process.env.npm_package_version });
@@ -45,13 +68,21 @@ async function main() {
 
   log.ok('就绪', { ms: elapsedMs(), url: `http://localhost:${actualPort}` });
 
-  const shutdown = () => {
-    log.info('正在关闭...');
-    if (!serverRef) process.exit(0);
-    serverRef.close(() => process.exit(0));
+  const shutdown = (signal) => {
+    if (shuttingDown) return;
+    shuttingDown = true;
+
+    process.stdout.write('\n');
+    log.info('正在关闭...', { signal });
+
+    process.once('SIGINT', () => process.exit(130));
+
+    const exit = signal === 'SIGINT' ? 130 : 0;
+    closeServer(serverRef, exit);
   };
-  process.on('SIGINT', shutdown);
-  process.on('SIGTERM', shutdown);
+
+  process.once('SIGINT', () => shutdown('SIGINT'));
+  process.once('SIGTERM', () => shutdown('SIGTERM'));
 }
 
 if (require.main === module) {