feat(i18n): 管理端与玩家端三语支持（中/英/马来语）

- 管理后台 adminT 文案库、结算与代理端页面、表单校验
- 玩家端 vue-i18n 补全首页/公告/串关与 ms 文案
- Element Plus ms 语言包与共享 locale 工具

apps/admin/src/views/agent/Bets.vue

@@ -1,9 +1,12 @@
 <script setup lang="ts">
 import { ref, onMounted } from 'vue';
+import { useAdminLocale } from '../../composables/useAdminLocale';
 import api from '../../api';
 import { formatAmount } from '../../utils/format-amount';
 import { betStatusLabel, betStatusTagType, betTypeLabel } from '../../utils/bet-labels';
 
+const { t } = useAdminLocale();
+
 interface BetRow {
   id: string;
   betNo: string;
@@ -44,23 +47,23 @@ function onSizeChange(size: number) {
 <template>
   <div class="admin-list-page">
     <div class="page-header">
-      <h2 class="page-title">注单查询</h2>
-      <span class="page-desc">下级玩家的全部投注记录</span>
+      <h2 class="page-title">{{ t('page.agent_bets.title') }}</h2>
+      <span class="page-desc">{{ t('page.agent_bets.desc') }}</span>
     </div>
 
     <el-card class="data-card" shadow="never">
       <div class="table-wrap">
         <el-table :data="bets" stripe>
-          <el-table-column prop="id" label="单号" width="56" align="center" />
-          <el-table-column prop="betNo" label="流水编号" width="168" show-overflow-tooltip>
+          <el-table-column prop="id" :label="t('bet.col.serial')" width="56" align="center" />
+          <el-table-column prop="betNo" :label="t('bet.col.bet_no')" width="168" show-overflow-tooltip>
             <template #default="{ row }">
               <span class="bet-no">{{ row.betNo }}</span>
             </template>
           </el-table-column>
-          <el-table-column label="玩家" min-width="100">
+          <el-table-column :label="t('bet.col.player')" min-width="100">
             <template #default="{ row }">{{ row.user?.username ?? '—' }}</template>
           </el-table-column>
-          <el-table-column label="类型" width="88" align="center">
+          <el-table-column :label="t('common.type')" width="88" align="center">
             <template #default="{ row }">
               <el-tag v-if="row.betType" type="info" size="small" effect="plain">
                 {{ betTypeLabel(row.betType) }}
@@ -68,10 +71,10 @@ function onSizeChange(size: number) {
               <span v-else>—</span>
             </template>
           </el-table-column>
-          <el-table-column label="投注额" width="110" align="right">
+          <el-table-column :label="t('bet.col.stake')" width="110" align="right">
             <template #default="{ row }">{{ formatAmount(row.stake) }}</template>
           </el-table-column>
-          <el-table-column label="状态" width="96" align="center">
+          <el-table-column :label="t('common.status')" width="96" align="center">
             <template #default="{ row }">
               <el-tag :type="betStatusTagType(row.status)" size="small">
                 {{ betStatusLabel(row.status) }}