fix(system/role): 修复角色权限禁用逻辑

src/views/system/role/components/Permission.vue

@@ -295,11 +295,13 @@ const save = async () => {
 const showCheckedAll = ref(true)
 // 加载角色详情
 const fetchRole = async (id: string) => {
+  try {
+    loading.value = true
     disabled.value = !has.hasPermOr(['system:role:updatePermission'])
     // 查询角色详情
     const { data } = await getRole(id)
     if (!disabled.value) {
-    disabled.value = data.isSystem
+      disabled.value = data.isSystem && data.code === 'admin'
     }
     isCascade.value = data.menuCheckStrictly
     // 更新选中键集合
@@ -312,6 +314,9 @@ const fetchRole = async (id: string) => {
       tableRef.value?.tableRef?.select(data.menuIds, true)
       showCheckedAll.value = !disabled.value
     })
+  } finally {
+    loading.value = false
+  }
 }
 
 // 刷新