Enhance deploy.sh to check for existing PM2 service before stopping and deleting. Added conditional logic to skip these steps if the service is not found, improving deployment reliability.

deploy.sh

@@ -82,8 +82,16 @@ echo -e "${BLUE}📦 后端构建完成${NC}"
 pnpm migrate:prod
 echo -e "${BLUE}📦 数据库迁移完成${NC}"
 
-pm2 stop just-demo-backend
-pm2 delete just-demo-backend
+# 检查服务是否存在，如果存在则停止并删除
+if pm2 describe just-demo-backend &> /dev/null; then
+    echo -e "${BLUE}🛑 停止现有服务...${NC}"
+    pm2 stop just-demo-backend
+    echo -e "${BLUE}🗑️  删除现有服务...${NC}"
+    pm2 delete just-demo-backend
+else
+    echo -e "${BLUE}ℹ️  服务不存在，跳过停止和删除${NC}"
+fi
+
 pm2 start npm --name "just-demo-backend" -- run start:p
 echo -e "${BLUE}📦 后端启动完成${NC}"