refactor: 国际化文本迁移至全局 locales/messages.js

将组件级 i18n 对象重构为统一由全局 locales/messages.js 管理，确保中英文语言切换时正确显示对应文本。

- 新增 utils/i18n.js 国际化工具函数
- 更新 store/$t.mixin.js 翻译混入逻辑
- 迁移 pkgService、pkgBooking、pkgAccount、pkgExplore、pages 等共 58 个组件的中英文文本至全局消息表

pkgBooking/booking_list/booking_list.vue

@@ -1,13 +1,13 @@
 <template>
   <view class="booking-list-page tn-safe-area-inset-bottom">
     <tn-nav-bar :isBack="true" :bottomShadow="false" backgroundColor="transparent">
-      <view class="tn-text-bold tn-text-xl tn-color-black">{{ t('navTitle') }}</view>
+      <view class="tn-text-bold tn-text-xl tn-color-black">{{ $tr('预订记录') }}</view>
     </tn-nav-bar>
 
     <view class="page-content tn-padding" :style="{ paddingTop: vuex_custom_bar_height + 'px' }">
       <view v-if="loading" class="empty-card tn-padding-lg">
-        <view class="empty-title">{{ t('loadingTitle') }}</view>
-        <view class="empty-desc tn-margin-top-sm">{{ t('loadingDesc') }}</view>
+        <view class="empty-title">{{ $tr('订单加载中') }}</view>
+        <view class="empty-desc tn-margin-top-sm">{{ $tr('正在同步您的真实预订记录，请稍候。') }}</view>
       </view>
       <view v-else-if="bookingList.length">
         <view
@@ -18,7 +18,7 @@
         >
           <view class="tn-flex tn-flex-row-between tn-flex-col-center">
             <view>
-              <view class="booking-title">{{ item.roomTypeText || t('bookingFallbackTitle') }}</view>
+              <view class="booking-title">{{ item.roomTypeText || $tr('房源预订') }}</view>
               <view class="booking-subtitle tn-margin-top-xs">{{ item.orderNo }}</view>
             </view>
             <view class="status-badge" :class="'status-' + item.tagType">
@@ -28,15 +28,15 @@
 
           <view class="info-grid tn-margin-top">
             <view class="info-row tn-flex tn-flex-row-between tn-margin-bottom-sm">
-              <text class="info-label">{{ t('buildingFloorLabel') }}</text>
+              <text class="info-label">{{ $tr('楼栋楼层') }}</text>
               <text class="info-value">{{ item.buildingFloorText }}</text>
             </view>
             <view class="info-row tn-flex tn-flex-row-between tn-margin-bottom-sm">
-              <text class="info-label">{{ t('stayDateLabel') }}</text>
-              <text class="info-value">{{ item.startDateText }}{{ t('dateRangeJoiner') }}{{ item.endDateText }}</text>
+              <text class="info-label">{{ $tr('入住时间') }}</text>
+              <text class="info-value">{{ item.startDateText }}{{ $tr(' 至 ') }}{{ item.endDateText }}</text>
             </view>
             <view class="info-row tn-flex tn-flex-row-between">
-              <text class="info-label">{{ t('submittedAtLabel') }}</text>
+              <text class="info-label">{{ $tr('提交时间') }}</text>
               <text class="info-value">{{ item.createdAtText }}</text>
             </view>
           </view>
@@ -44,10 +44,10 @@
       </view>
 
       <view v-else class="empty-card tn-padding-lg">
-        <view class="empty-title">{{ t('emptyTitle') }}</view>
-        <view class="empty-desc tn-margin-top-sm">{{ t('emptyDesc') }}</view>
+        <view class="empty-title">{{ $tr('暂无预订记录') }}</view>
+        <view class="empty-desc tn-margin-top-sm">{{ $tr('当前暂无预订记录，完成预订后会在这里展示。') }}</view>
         <view class="custom-btn btn-primary tn-margin-top-lg" @click="goSelectRoom">
-          <text class="tn-text-bold">{{ t('goSelectRoom') }}</text>
+          <text class="tn-text-bold">{{ $tr('去选房') }}</text>
         </view>
       </view>
     </view>
@@ -60,38 +60,6 @@ import { getSessionSnapshot } from '../../utils/app-state'
 import { normalizeBookingList, parseOrderListResponse } from '../../utils/booking-helper'
 
 export default {
-  i18n: {
-    zh: {
-      navTitle: '预订记录',
-      loadingTitle: '订单加载中',
-      loadingDesc: '正在同步您的真实预订记录，请稍候。',
-      bookingFallbackTitle: '房源预订',
-      buildingFloorLabel: '楼栋楼层',
-      stayDateLabel: '入住时间',
-      submittedAtLabel: '提交时间',
-      emptyTitle: '暂无预订记录',
-      emptyDesc: '当前暂无预订记录，完成预订后会在这里展示。',
-      goSelectRoom: '去选房',
-      cachedListShown: '网络异常，已展示最近同步记录',
-      loadFailed: '预订记录加载失败',
-      dateRangeJoiner: ' 至 '
-    },
-    en: {
-      navTitle: 'Booking Records',
-      loadingTitle: 'Loading bookings',
-      loadingDesc: 'Syncing your latest booking records. Please wait.',
-      bookingFallbackTitle: 'Room Booking',
-      buildingFloorLabel: 'Building / Floor',
-      stayDateLabel: 'Stay Dates',
-      submittedAtLabel: 'Submitted At',
-      emptyTitle: 'No booking records',
-      emptyDesc: 'No booking record is available yet. Completed bookings will appear here.',
-      goSelectRoom: 'Select Room',
-      cachedListShown: 'Network issue detected. Showing the latest synced records.',
-      loadFailed: 'Failed to load booking records',
-      dateRangeJoiner: ' to '
-    }
-  },
   data() {
     return {
       bookingList: [],
@@ -112,9 +80,6 @@ export default {
     await this.fetchBookingList()
   },
   methods: {
-    t(key, params) {
-      return this.$tm('pkgBooking.booking_list.booking_list', key, params)
-    },
     getStoreUser() {
       return (this.$store && this.$store.state && this.$store.state.vuex_user) || {}
     },
@@ -156,8 +121,8 @@ export default {
           this.applyBookingList(normalizeBookingList(cachedList, this.language))
           uni.showToast({
             title: this.bookingList.length
-              ? this.t('cachedListShown')
-              : ((error && (error.message || error.msg)) || this.t('loadFailed')),
+              ? this.$tr('网络异常，已展示最近同步记录')
+              : ((error && (error.message || error.msg)) || this.$tr('预订记录加载失败')),
             icon: 'none'
           })
         })