fix: align permission-gated UI actions

apps/admin/src/pages/AiConfig/index.tsx

@@ -13,7 +13,6 @@ import {
   Spin,
   Alert,
   Typography,
-  Tooltip,
   Space,
 } from 'antd';
 import {
@@ -442,27 +441,16 @@ const AiConfigPage: React.FC = () => {
 
         {/* Actions */}
         <div className={styles.actions}>
-          <Tooltip title={!canWrite ? '当前角色无写入权限' : undefined}>
-            <Button
-              type="primary"
-              icon={<SaveOutlined />}
-              onClick={handleSave}
-              loading={saving}
-              disabled={!canWrite}
-            >
+          {canWrite ? (
+            <Button type="primary" icon={<SaveOutlined />} onClick={handleSave} loading={saving}>
               保存配置
             </Button>
-          </Tooltip>
-          <Tooltip title={!canTest ? '当前角色无测试权限' : undefined}>
-            <Button
-              icon={<ApiOutlined />}
-              onClick={handleTest}
-              loading={testing}
-              disabled={!canTest}
-            >
+          ) : null}
+          {canTest ? (
+            <Button icon={<ApiOutlined />} onClick={handleTest} loading={testing}>
               测试连接
             </Button>
-          </Tooltip>
+          ) : null}
         </div>
       </Form>