fix(admin-vue 查询ASIN): 列表筛选/分页参数对齐后端 snake_case，导出 XLSX 带上当前筛选

- query-asin-filter: toQueryAsinQuery 输出 page_size/group_id/shop_name（35bed42b 后端已改显式 snake，
  camel 参数被静默忽略导致分组/店铺名筛选无作用、pageSize 固定回落 15）
- 新增 query-asin-export: 按当前筛选构建导出 URL，页面「导出 XLSX」不再恒为全量
- query-asin-import-api: 导入兜底分组 groupId→group_id（后端 importExcel 已改名，此前同样被丢弃）
- query-asin-delete-import-api: 保持 groupId 并加注释（后端仍隐式 camel，统一需两端同步部署）
- task-71 测试断言更新为 snake 契约（含 camel 不下发反断言）+ 新增导出 URL 用例

已上线 admin-vue-20260910-145200，线上 chunk 验证含 snake 参数；task-71 10/10 通过，vue-tsc 通过

admin-frontend-vue/tests/task-71.test.ts

@@ -15,6 +15,7 @@ import {
   toQueryAsinParams,
   toQueryAsinQuery,
 } from '../src/pages/asin/query-asin-filter.ts'
+import { buildQueryAsinExportQuery, toQueryAsinExportUrl } from '../src/pages/asin/query-asin-export.ts'
 
 test('test_task_071_query_asin_list_normal_primary_path', () => {
   // 正常主路径：Java QueryAsinPageVo(camel) 宽行(每店铺 5 国家 ASIN)解析为前端分页结果。
@@ -115,24 +116,26 @@ test('test_task_071_query_asin_list_boundary_limit_or_missing_field', () => {
     999,
   ))
   assert.equal(query.page, 1)
-  assert.equal(query.pageSize, 100)
-  assert.equal('groupId' in query, false, '分组 0 不应下发')
-  assert.equal('shopName' in query, false, '空白店铺名不应下发')
+  assert.equal(query.page_size, 100)
+  assert.equal('group_id' in query, false, '分组 0 不应下发')
+  assert.equal('shop_name' in query, false, '空白店铺名不应下发')
   assert.equal('asin' in query, false)
   assert.equal('country' in query, false, '不支持的国家码不应下发')
-  // 正常非空值仍以 Java camelCase 参数名下发。
+  // 正常非空值以 Java snake_case 参数名下发（QueryAsinController @RequestParam(page_size/group_id/shop_name) 契约）。
   const filled = toQueryAsinQuery(toQueryAsinParams(
     { groupId: 5, shopName: ' 蓝店 ', asin: 'B0X', country: 'de' },
     3,
     25,
   ))
   assert.equal(filled.page, 3)
-  assert.equal(filled.pageSize, 25)
-  assert.equal(filled.groupId, 5)
-  assert.equal(filled.shopName, '蓝店')
+  assert.equal(filled.page_size, 25)
+  assert.equal(filled.group_id, 5)
+  assert.equal(filled.shop_name, '蓝店')
   assert.equal(filled.asin, 'B0X')
   assert.equal(filled.country, 'DE')
-  assert.equal('page_size' in (filled as Record<string, unknown>), false, '不应下发 page_size(snake)')
+  assert.equal('pageSize' in (filled as Record<string, unknown>), false, '不应下发 pageSize(camel)：后端收不到会导致筛选/分页失效')
+  assert.equal('groupId' in (filled as Record<string, unknown>), false, '不应下发 groupId(camel)')
+  assert.equal('shopName' in (filled as Record<string, unknown>), false, '不应下发 shopName(camel)')
 })
 
 test('test_task_071_query_asin_country_semantics', () => {
@@ -174,3 +177,16 @@ test('test_task_071_query_asin_list_dependency_failure_returns_actionable_messag
   const model = readSource('src/pages/asin/query-asin-model.ts')
   assert.equal(/axios|http\./.test(model), false, '查询 ASIN 列表解析保持纯逻辑')
 })
+
+test('test_task_071_query_asin_export_url_follows_filter', () => {
+  // 导出 URL 跟随当前筛选：非空条件以 snake 参数下发（后端 export @RequestParam 契约），空白/非法条件与无筛选时退回全量。
+  const url = toQueryAsinExportUrl({ groupId: 5, shopName: ' 蓝店 ', asin: ' B0X ', country: 'de' })
+  assert.equal(url.startsWith('/api/admin/query-asins/export?'), true)
+  const params = new URLSearchParams(url.split('?')[1])
+  assert.equal(params.get('group_id'), '5')
+  assert.equal(params.get('shop_name'), '蓝店')
+  assert.equal(params.get('asin'), 'B0X')
+  assert.equal(params.get('country'), 'DE')
+  assert.equal(buildQueryAsinExportQuery({ groupId: 0, shopName: '  ', asin: '', country: 'XX' }), '', '空白/非法条件不下发')
+  assert.equal(toQueryAsinExportUrl({ groupId: null, shopName: '', asin: '', country: '' }), '/api/admin/query-asins/export', '无筛选即全量导出')
+})