feat: add unit management functionality with list, detail, and API integration

src/layout/LayoutMenu.jsx

@@ -15,6 +15,7 @@ import {
     RollbackOutlined,
     ProductOutlined,
     TagOutlined,
+    AppstoreOutlined,
     MobileOutlined,
     WarningOutlined,
     LineChartOutlined,
@@ -64,6 +65,11 @@ const allItems = [
                 icon: <TagOutlined style={{ fontSize: '19px' }} />,
                 label: <Link to="/master/tag">Tag</Link>,
             },
+            {
+                key: 'master-unit',
+                icon: <AppstoreOutlined style={{ fontSize: '19px' }} />,
+                label: <Link to="/master/unit">Unit</Link>,
+            },
             {
                 key: 'master-status',
                 icon: <SafetyOutlined style={{ fontSize: '19px' }} />,