task-283(后台迁移收尾/发布): admin-vue 后台工程入库 + Flask 后台整体退役

- 新后台 admin-frontend-vue 整工程入库(base=/admin-vue/、History 路由、Nginx 静态托管方案与 verify-dist 校验)
- Java AdminConsoleController 改为入口重定向: /admin|/admin.html、/login|/login.html -> /admin-vue/; 删除 classpath:static 旧 admin.html/login.html 单页与 admin.js 副本
- Flask 后台整体退役: 删除 admin_api/auth/main 蓝图、web_source 页面、static 脚本与 admin 相关测试; app.py 收敛为仅注册 version_bp(/api/version、/api/version/latest, 供桌面端更新检查)
- AdminApiGuardFilterTest 豁免样例路径 /admin.html -> /admin-vue/

admin-frontend-vue/src/pages/asin/DedupeRegistryPage.vue

@@ -30,7 +30,7 @@ const loading = ref(false)
 const rows = ref<DedupeTotalItem[]>([])
 const total = ref(0)
 const page = ref(1)
-const pageSize = 15
+const pageSize = ref(10)
 const filter = reactive(createDedupeTotalFilterState())
 const groups = ref<DedupeGroupOption[]>([])
 
@@ -78,7 +78,7 @@ function stopExportWait(): void {
 async function load(): Promise<void> {
   loading.value = true
   try {
-    const result = await fetchDedupeTotalList(toDedupeListParams(filter, page.value, pageSize))
+    const result = await fetchDedupeTotalList(toDedupeListParams(filter, page.value, pageSize.value))
     rows.value = result.items
     total.value = result.total
     if (result.page >= 1) page.value = result.page
@@ -294,11 +294,6 @@ onMounted(() => {
         <h2>数据去重总数据</h2>
         <p>去重总数据的 ASIN 值台账，可按 ASIN/用户名/分组/国家/日期筛选，支持 Excel 导入与导出。</p>
       </div>
-      <div class="heading-actions">
-        <el-button type="primary" @click="openImportAdd">新增导入</el-button>
-        <el-button @click="openImportDelete">删除导入</el-button>
-        <el-button :loading="exporting" @click="doExport">导出</el-button>
-      </div>
     </div>
 
     <el-card shadow="never" class="group-summary-card">
@@ -357,8 +352,12 @@ onMounted(() => {
     </el-card>
 
     <el-card shadow="never">
+      <div class="table-toolbar">
+        <el-button type="primary" @click="openImportAdd">新增导入</el-button>
+        <el-button @click="openImportDelete">删除导入</el-button>
+        <el-button :loading="exporting" @click="doExport">导出</el-button>
+      </div>
       <el-table v-loading="loading" :data="rows" stripe border>
-        <el-table-column prop="id" label="ID" min-width="80" />
         <el-table-column prop="dataValue" label="ASIN" min-width="170" />
         <el-table-column label="国家" min-width="100" align="center">
           <template #default="{ row }">{{ asinCountryLabel((row as DedupeTotalItem).country || '') }}</template>
@@ -381,11 +380,13 @@ onMounted(() => {
         <span>共 {{ total.toLocaleString() }} 条</span>
         <el-pagination
           background
-          layout="prev, pager, next, jumper"
+          layout="sizes, prev, pager, next, jumper"
           :total="total"
           :page-size="pageSize"
+          :page-sizes="[10, 20, 50, 100]"
           :current-page="page"
           @current-change="(p: number) => { page = p; void load() }"
+          @size-change="() => { page = 1; void load() }"
         />
       </div>
     </el-card>