fix:bug

src/server.ts

@@ -3,6 +3,7 @@ import cors from 'cors';
 import morgan from 'morgan';
 import dotenv from 'dotenv';
 import path from 'path';
+import fs from 'fs';
 
 dotenv.config();
 
@@ -11,9 +12,19 @@ const backendHost = process.env.BACKEND_HOST || '127.0.0.1';
 const backendPort = Number(process.env.BACKEND_PORT) || 8000;
 const backendBase = `http://${backendHost}:${backendPort}`;
 
+const logDir = process.env.LOG_DIR || path.join(__dirname, '../backend/data/logs');
+try {
+  fs.mkdirSync(logDir, { recursive: true });
+} catch {
+  // ignore
+}
+const accessLogPath = path.join(logDir, 'node-access.log');
+const accessLogStream = fs.createWriteStream(accessLogPath, { flags: 'a' });
+
 app.use(cors());
 app.use(express.json());
 app.use(morgan('dev'));
+app.use(morgan('combined', { stream: accessLogStream }));
 
 // 代理 /api 和 /auth 到后端，使前端用相对路径即可（任意 -p/-b 端口都正确）
 async function proxyToBackend(req: express.Request, res: express.Response): Promise<void> {
@@ -54,8 +65,14 @@ app.get('/health', (_req, res) => {
 const port = process.env.PORT || 3000;
 
 app.listen(port, () => {
+  const msg = `Static frontend server listening on port ${port}; access log: ${accessLogPath}`;
   // eslint-disable-next-line no-console
-  console.log(`Static frontend server listening on port ${port}`);
+  console.log(msg);
+  try {
+    accessLogStream.write(`[${new Date().toISOString()}] ${msg}\n`);
+  } catch {
+    // ignore
+  }
 });