task-88(店铺中心): 实现店铺列表加载

新增 shop-manage-model.ts(ShopManagePageVo camel 解析，仅保留密码掩码)
与 shop-manage-api.ts(GET /api/admin/shop-manages 加载适配)。

TDD: task-88.test.ts 8 用例先 RED 后 GREEN。

admin-frontend-vue/src/pages/shop/shop-manage-api.ts

@@ -0,0 +1,17 @@
+/** 店铺列表加载适配（任务 88）：GET /api/admin/shop-manages + 分页/筛选归一与解析。 */
+import { http } from '@/api/http'
+import { parseShopManagePage } from './shop-manage-model.ts'
+import {
+  normalizeShopListParams,
+  toShopManagePageQuery,
+  type ShopManageListParams,
+  type ShopPageResult,
+} from './shop-dto.ts'
+
+export const SHOP_MANAGE_ENDPOINT = '/api/admin/shop-manages'
+
+export async function fetchShopManageList(params: Partial<ShopManageListParams> = {}): Promise<ShopPageResult> {
+  const normalized = normalizeShopListParams(params)
+  const { data } = await http.get<unknown>(SHOP_MANAGE_ENDPOINT, { params: toShopManagePageQuery(normalized) })
+  return parseShopManagePage(data)
+}