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

pkgExplore/store_detail/components/StoreInfo.vue

@@ -9,7 +9,7 @@
         <text class="address-title tn-text-ellipsis">{{ shortAddress }}</text>
       </view>
       <view class="address-right tn-flex tn-flex-col-center">
-        <text class="nav-text">{{ t('navigate') }}</text>
+        <text class="nav-text">{{ $tr('导航') }}</text>
         <text class="tn-icon-right nav-arrow"></text>
       </view>
     </view>
@@ -17,7 +17,7 @@
     <!-- 小区简介 -->
     <view class="section-panel" v-if="displayDescription">
       <view class="section-header">
-        <text class="section-title">{{ t('storeIntro') }}</text>
+        <text class="section-title">{{ $tr('小区简介') }}</text>
       </view>
       <view
         class="store-desc"
@@ -29,7 +29,7 @@
         <text v-else>{{ displayDescription }}</text>
       </view>
       <view v-if="shouldShowToggle" class="expand-btn tn-flex tn-flex-row-center tn-flex-col-center" @click="toggleDesc">
-        <text>{{ isDescCollapsed ? t('expandAll') : t('collapse') }}</text>
+        <text>{{ isDescCollapsed ? $tr('展开全部') : $tr('收起') }}</text>
         <text :class="isDescCollapsed ? 'tn-icon-down' : 'tn-icon-up'" class="expand-icon"></text>
       </view>
     </view>
@@ -104,19 +104,16 @@ export default {
         ? (this.storeData.addressEnDisplay || this.storeData.addressEn || this.storeData.address || '')
         : (this.storeData.address || this.storeData.addressEn || '')
       if (!addr) {
-        return this.t('noAddress')
+        return this.$tr('暂无地址')
       }
       if (this.language === 'en') {
         return addr
       }
       const short = addr.replace(/^(?:.*?省|.*?自治区)?(?:.*?市|.*?自治州)?/, '');
-      return short.trim() ? short : (addr || this.t('noAddress'));
+      return short.trim() ? short : (addr || this.$tr('暂无地址'));
     }
   },
   methods: {
-    t(key) {
-      return this.$tm('pkgExplore.store_detail.store_detail', key)
-    },
     toggleDesc() {
       this.isDescCollapsed = !this.isDescCollapsed;
     },