统一前端错误读取和调试日志

frontend/src/features/listings/views/MobileListingDetailView.vue

@@ -1,4 +1,5 @@
 <script setup lang="ts">
+import { readError } from '@/shared/utils/error'
 import { computed, nextTick, onMounted, ref } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { showToast, showDialog } from 'vant'
@@ -255,13 +256,6 @@ function updateAgreementReadState(type: 'virtual' | 'renter') {
   }
 }
 
-function readError(error: unknown, fallback: string) {
-  if (typeof error === 'object' && error && 'response' in error) {
-    const response = (error as { response?: { data?: { message?: string } } }).response
-    return response?.data?.message || fallback
-  }
-  return fallback
-}
 
 async function copyListingCode() {
   if (!listing.value) return