feat: 飞书审批消息添加操作按钮

功能：
1. 审批通知卡片添加"通过"和"拒绝"按钮
2. 点击按钮跳转到审批详情页，自动弹出审批确认框
3. 保留"查看详情"按钮

实现：
- FeishuNotificationService.buildApprovalCard() - 添加审批操作按钮
- ApprovalService.notifyNextApprovers() - 传递 order_id 参数
- approval/detail.tsx - 处理 URL 中的 action 参数

按钮样式：
- 通过按钮：绿色 (primary)
- 拒绝按钮：红色 (danger)
- 查看详情：默认样式

相关文件：
- backend/app/service/FeishuNotificationService.php
- backend/app/service/ApprovalService.php
- frontend/src/pages/approval/detail.tsx

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

frontend/src/pages/approval/detail.tsx

@@ -1,5 +1,5 @@
 import { useState, useEffect } from 'react'
-import { useNavigate, useParams } from 'react-router-dom'
+import { useNavigate, useParams, useLocation } from 'react-router-dom'
 import { useTranslation } from 'react-i18next'
 import { Card, Tag, Button, Dialog, Toast, TextArea } from 'antd-mobile'
 import {
@@ -98,6 +98,7 @@ export default function ApprovalDetail() {
   const { t } = useTranslation()
   const navigate = useNavigate()
   const { id } = useParams()
+  const location = useLocation()
   const { user } = useUserStore()
 
   const [detail, setDetail] = useState<ApprovalDetail | null>(null)
@@ -126,6 +127,24 @@ export default function ApprovalDetail() {
     loadDetail()
   }, [id])
 
+  // 处理 URL 中的 action 参数（来自飞书消息按钮）
+  useEffect(() => {
+    if (!detail || !canApprove) return
+
+    const searchParams = new URLSearchParams(location.search)
+    const action = searchParams.get('action')
+
+    if (action === 'approve' || action === 'reject') {
+      // 自动打开审批对话框
+      setActionType(action)
+      setComment('')
+      setCommentVisible(true)
+
+      // 清除 URL 参数，避免重复触发
+      window.history.replaceState({}, '', `/approval/detail/${id}`)
+    }
+  }, [detail, location.search])
+
   // 撤销申请
   const handleCancel = () => {
     Dialog.confirm({