style: update project order menu icon

src/components/AdminLayout.tsx

@@ -8,6 +8,7 @@ import {
   LogoutOutlined,
   ExclamationCircleOutlined,
   IdcardOutlined,
+  ProjectOutlined,
   ToolOutlined,
 } from '@ant-design/icons';
 import { authApi } from '@/services/api';
@@ -54,7 +55,7 @@ function AdminLayout() {
     },
     {
       key: 'project-orders',
-      icon: <ToolOutlined />,
+      icon: <ProjectOutlined />,
       label: '项目工单',
       onClick: () => navigate('/admin/project-orders'),
     },
@@ -68,7 +69,7 @@ function AdminLayout() {
   const technicianMenuItems = [
     {
       key: 'project-orders',
-      icon: <ToolOutlined />,
+      icon: <ProjectOutlined />,
       label: '项目工单',
       onClick: () => navigate('/admin/project-orders'),
     },