fix: 修复变量名不一致和移除预计费用

backend/app/service/FeishuNotificationService.php

@@ -720,7 +720,7 @@ class FeishuNotificationService
                 return false;
             }
 
-            error_log("🔍 准备更新操作人消息: message_id={$message->message_id}, company_id={$companyId}, feishu_app_id={$feishu_app_id}");
+            error_log("🔍 准备更新操作人消息: message_id={$message->message_id}, company_id={$companyId}, feishu_app_id={$feishuAppId}");
 
             // 使用该消息对应的飞书应用配置
             $this->companyId = $companyId;

frontend/src/pages/approval/detail.tsx

@@ -613,19 +613,16 @@ export default function ApprovalDetail() {
                                 <span className={styles.itineraryIndex}>行程 {index + 1}</span>
                               </div>
                               {Object.entries(itinerary).map(([ikey, ivalue]) => {
-                                if (ikey === 'id') return null
+                                if (ikey === 'id' || ikey === 'estimated_cost') return null
                                 const itineraryLabelMap: Record<string, string> = {
                                   destination: '目的地',
                                   start_date: '开始日期',
                                   end_date: '结束日期',
-                                  estimated_cost: '预计费用',
                                 }
                                 const itineraryLabel = itineraryLabelMap[ikey] || ikey
                                 let displayValue = ivalue as string
                                 if (ikey.includes('date') && ivalue) {
                                   displayValue = dayjs(String(ivalue)).format('YYYY-MM-DD')
-                                } else if (ikey === 'estimated_cost' && ivalue) {
-                                  displayValue = `¥${Number(ivalue).toFixed(2)}`
                                 }
                                 return (
                                   <div key={ikey} className={styles.itineraryRow}>