fix: 修复审批弹框按钮不显示的问题

- 使用 actions 属性自定义弹框按钮
- 添加按钮点击事件的日志

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/pages/approval/detail.tsx

@@ -543,16 +543,31 @@ export default function ApprovalDetail() {
         closeOnMaskClick={false}
         closeOnAction={false}
         onConfirm={handleConfirmApprove}
-        onClose={() => {
-          console.log('弹框关闭')
-          setCommentVisible(false)
-        }}
         onCancel={() => {
           console.log('弹框取消')
           setCommentVisible(false)
         }}
-        confirmText="确认"
-        cancelText="取消"
+        actions={[
+          [
+            {
+              key: 'cancel',
+              text: '取消',
+              onClick: () => {
+                console.log('点击取消按钮')
+                setCommentVisible(false)
+              }
+            },
+            {
+              key: 'confirm',
+              text: '确认',
+              primary: true,
+              onClick: () => {
+                console.log('点击确认按钮')
+                handleConfirmApprove()
+              }
+            }
+          ]
+        ]}
       />
     </div>
   )