Update Dockerfile

Dockerfile

@@ -15,8 +15,8 @@ RUN npm install n8n -g
 # 创建启动脚本目录
 RUN mkdir -p /app
 
-# 创建带心跳监控的启动脚本
-RUN cat > /app/start-with-heartbeat.js << 'EOF'
+# 创建启动脚本
+COPY <<EOF /app/start-with-heartbeat.js
 const { spawn } = require('child_process');
 
 // Periodic heartbeat to confirm event loop activity (can be removed later)
@@ -37,7 +37,7 @@ const n8nProcess = spawn('n8n', ['start'], {
 
 // 处理进程退出
 n8nProcess.on('exit', (code, signal) => {
-    console.log(`[diagnostic] n8n process exited with code ${code}, signal ${signal}`);
+    console.log(\`[diagnostic] n8n process exited with code \${code}, signal \${signal}\`);
     process.exit(code);
 });
 
@@ -53,5 +53,6 @@ process.on('SIGINT', () => {
 });
 EOF
 
+
 # 使用带心跳监控的启动脚本
 CMD ["node", "/app/start-with-heartbeat.js"]