feat(sip): 添加 MaintenanceController 控制器

- 新增 MaintenanceController 类，用于处理维护服务相关的请求
- 添加服务页面的路由映射
- 该控制器具有权限控制注解，确保只有具有相应权限的用户可以访问

ruoyi-sip/src/main/java/com/ruoyi/sip/controller/MaintenanceController.java

@@ -0,0 +1,36 @@
+package com.ruoyi.sip.controller;
+
+
+import com.ruoyi.sip.service.IOrderDeliveryService;
+import org.apache.shiro.authz.annotation.RequiresPermissions;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+/**
+ * @author :   ch
+ * @version :   1.0
+ * @ClassName :   MaintenanceController
+ * @Description :
+ * @DATE :   Created in 11:25 2025/4/23
+ * <pre>       Copyright: Copyright(c) 2025     </pre>
+ * <pre>       Company :   	紫光汇智信息技术有限公司		           </pre>
+ * Modification  History:
+ * Date         Author        Version        Discription
+ * --------------------------------------------------------------------------
+ * 2025/04/23      ch              1.0         Why & What is modified: <修改原因描述> *
+ */
+@Controller
+@RequestMapping("/manage/service")
+public class MaintenanceController {
+    private String prefix = "manage/service";
+
+
+
+    @GetMapping()
+    public String service()
+    {
+        return prefix + "/service";
+    }
+}