feat(后台分组): 分组筛选与分组列仅超管可见，非超管一律隐藏

管理员/普通用户数据已由后端裁剪到本人可访问分组，分组维度对其无意义；
账号归属分组是超管职责，故只有超管需要按分组筛选与区分。

- 隐藏分组筛选+分组列：品牌数据库、查询ASIN、最低价ASIN、去重总数据、
  店铺管理、用户密钥
- 仅隐藏分组展示：店铺数据记录(筛选框+卡片行)、图片视频任务(所属分组行)、
  撞款检测(明细抽屉分组列+卡片分组标签)
- 弹窗分组选择保留展示但锁定：非超管仅1个可访问分组时自动选中并置灰
  (查询/最低价ASIN 另联动加载该分组店铺)，多分组不锁以免限制用户
- 空数据行 colspan 随列显隐动态化
- 新增 tests/align-group-visibility.test.ts 回归守卫(5 条)

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

@@ -15,6 +15,11 @@ import { fetchShopNamesByGroup } from './query-asin-api.ts'
 import { fetchShopManageGroups } from '../shop/shop-manage-api.ts'
 import type { ShopGroupOption } from '../shop/shop-dto.ts'
 import OldPagination from '@/components/OldPagination.vue'
+import { useAdminSessionStore } from '@/stores/admin-session'
+
+const session = useAdminSessionStore()
+/** 仅超管需要分组维度：非超管数据由后端裁剪到本人分组，分组筛选/列一律不展示。 */
+const isSuperAdmin = computed(() => session.isSuperAdmin)
 
 const loading = ref(false)
 const rows = ref<SkipPriceItem[]>([])
@@ -22,6 +27,11 @@ const total = ref(0)
 const page = ref(1)
 const pageSize = ref(10)
 const groups = ref<ShopGroupOption[]>([])
+/** 非超管仅有一个可访问分组时，弹窗分组选择锁定为该组（保留展示、不可改）。 */
+const lockedGroupId = computed<number | null>(() => {
+  if (isSuperAdmin.value) return null
+  return groups.value.length === 1 ? groups.value[0].id : null
+})
 const filter = reactive<SkipPriceFilterState>(createSkipPriceFilterState())
 const jumpPage = ref('')
 const totalPages = computed(() => Math.max(1, Math.ceil(total.value / pageSize.value)))
@@ -57,7 +67,7 @@ const creating = ref(false)
 const createAsinInputRef = ref<InstanceType<typeof import('element-plus').ElInput> | null>(null)
 
 function openCreate(): void {
-  createGroupId.value = null
+  createGroupId.value = lockedGroupId.value
   createShopName.value = ''
   createCountry.value = ''
   createAsin.value = ''
@@ -66,6 +76,8 @@ function openCreate(): void {
   createMsgOk.value = false
   shopNames.value = []
   createVisible.value = true
+  // 非超管分组已锁定：直接联动加载该分组店铺，省去一次无意义的选择。
+  if (createGroupId.value != null) void onCreateGroupChange()
 }
 
 async function onCreateGroupChange(): Promise<void> {
@@ -238,7 +250,7 @@ const importRunning = ref(false)
 const importProgress = ref('')
 
 function resetImport(): void {
-  importGroupId.value = null
+  importGroupId.value = lockedGroupId.value
   importFile.value = null
   importProgress.value = ''
   importRunning.value = false
@@ -392,7 +404,7 @@ onMounted(() => {
       </div>
 
       <div class="form-row skip-filter-row">
-        <div class="form-group">
+        <div v-if="isSuperAdmin" class="form-group">
           <label>分组</label>
           <el-select v-model="filter.groupId" class="admin-filter" filterable clearable placeholder="全部分组">
             <el-option v-for="group in groups" :key="group.id" :label="group.groupName" :value="group.id" />
@@ -430,7 +442,7 @@ onMounted(() => {
           <thead>
             <tr>
               <th style="width: 6%">序号</th>
-              <th style="width: 13%">分组</th>
+              <th v-if="isSuperAdmin" style="width: 13%">分组</th>
               <th style="width: 15%">店铺名</th>
               <th style="width: 24%">ASIN</th>
               <th style="width: 12%">国家</th>
@@ -443,7 +455,7 @@ onMounted(() => {
               <tr v-for="row in displayRows" :key="`${row.item.id}-${row.country}`">
                 <template v-if="row.isFirst">
                   <td :rowspan="row.rowspan">{{ row.rowNo }}</td>
-                  <td :rowspan="row.rowspan">{{ row.item.groupName || '—' }}</td>
+                  <td v-if="isSuperAdmin" :rowspan="row.rowspan">{{ row.item.groupName || '—' }}</td>
                   <td :rowspan="row.rowspan">{{ row.item.shopName }}</td>
                 </template>
                 <td>
@@ -463,10 +475,10 @@ onMounted(() => {
               </tr>
             </template>
             <tr v-else-if="loading">
-              <td colspan="7" class="empty-tip">加载中...</td>
+              <td :colspan="isSuperAdmin ? 7 : 6" class="empty-tip">加载中...</td>
             </tr>
             <tr v-else>
-              <td colspan="7" class="empty-tip">暂无数据</td>
+              <td :colspan="isSuperAdmin ? 7 : 6" class="empty-tip">暂无数据</td>
             </tr>
           </tbody>
         </table>
@@ -477,7 +489,7 @@ onMounted(() => {
     <el-dialog v-model="createVisible" title="新增 ASIN" width="560px" :close-on-click-modal="false">
       <el-form label-position="top" @submit.prevent>
         <el-form-item label="分组">
-          <el-select v-model="createGroupId" placeholder="请选择分组" filterable clearable style="width: 100%" @change="onCreateGroupChange">
+          <el-select v-model="createGroupId" placeholder="请选择分组" filterable clearable style="width: 100%" :disabled="lockedGroupId != null" @change="onCreateGroupChange">
             <el-option v-for="group in groups" :key="group.id" :label="group.groupName" :value="group.id" />
           </el-select>
         </el-form-item>
@@ -535,7 +547,7 @@ onMounted(() => {
     <el-dialog v-model="importVisible" :title="importMode === 'add' ? '导入最低价 ASIN' : '删除导入最低价 ASIN'" width="520px">
       <el-form label-position="top">
         <el-form-item label="分组（必选）">
-          <el-select filterable v-model="importGroupId" placeholder="请选择分组" style="width: 100%">
+          <el-select filterable v-model="importGroupId" placeholder="请选择分组" style="width: 100%" :disabled="lockedGroupId != null">
             <el-option v-for="group in groups" :key="group.id" :label="group.groupName" :value="group.id" />
           </el-select>
         </el-form-item>