feat(pickup): 店铺管理支持历史店铺可视化手动映射与一键批量清洗

- 数据库升级：新增 pickup_shop_mappings 映射别名表，并在 admin_pickups 增加 raw_shop_name 永久保留原始店铺录入值
- 后端映射能力：提供历史店铺聚合统计、单条/批量映射至目标标准店铺、映射规则撤销与提号单还原接口；新建提号时若录入已映射别名自动归一化
- 前端管理升级：PickupShopDialog 升级为双 Tab 结构，Tab 2「历史店铺映射与清洗」支持总览统计卡片、状态筛选、单条/批量映射清洗、一键设为标准店铺及撤销还原
- 验证方式：执行并通过全套代码门禁（scripts/check.sh：SQL约束、go vet/build/test、MySQL测试库覆盖率、vue大小、eslint、prettier、vue-tsc及vite构建）

frontend/src/features/admin/api/adminPickup.ts

@@ -23,6 +23,7 @@ export interface AdminPickup {
   platform: string
   third_party_order_no: string
   shop_name: string
+  raw_shop_name?: string
   account_source: PickupAccountSource
   source_channel: string
   settlement_mode: PickupSettlementMode
@@ -194,6 +195,41 @@ export interface PickupShopQuery {
   status?: string
 }
 
+export type PickupShopMappingStatus = 'standard' | 'mapped' | 'unmapped'
+
+export interface PickupShopHistoricalItem {
+  source_name: string
+  count: number
+  mapping_status: PickupShopMappingStatus
+  target_shop_id?: number
+  target_shop_name?: string
+  remark?: string
+}
+
+export interface PickupShopHistoricalStats {
+  items: PickupShopHistoricalItem[]
+  total_pickups: number
+  total_shops: number
+  standard_count: number
+  mapped_count: number
+  unmapped_count: number
+}
+
+export interface MapHistoricalShopsRequest {
+  from_shop_names: string[]
+  target_shop_name: string
+  create_target_missing?: boolean
+  target_platform?: string
+  remark?: string
+}
+
+export interface MapHistoricalShopsResult {
+  updated_pickups_count: number
+  target_shop_name: string
+  target_shop_id: number
+  created_standard_shop: boolean
+}
+
 function cleanParams(query: object) {
   return Object.fromEntries(
     Object.entries(query).filter(([, value]) => value !== '' && value !== undefined)
@@ -339,3 +375,26 @@ export async function deletePickupShop(id: number) {
   )
   return data.data
 }
+
+export async function fetchHistoricalShopStats() {
+  const { data } = await apiClient.get<ApiResponse<PickupShopHistoricalStats>>(
+    '/admin/pickups/shops/historical-stats'
+  )
+  return data.data
+}
+
+export async function mapHistoricalShops(req: MapHistoricalShopsRequest) {
+  const { data } = await apiClient.post<ApiResponse<MapHistoricalShopsResult>>(
+    '/admin/pickups/shops/map-historical',
+    req
+  )
+  return data.data
+}
+
+export async function deleteShopMapping(sourceName: string) {
+  const { data } = await apiClient.delete<ApiResponse<{ deleted: boolean }>>(
+    '/admin/pickups/shops/mappings',
+    { params: { source_name: sourceName } }
+  )
+  return data.data
+}