chore: 初始化前端仓库并迁移 admin-ui

- 创建 rui-frontend 前端仓库
- 迁移 admin-ui 管理后台
- 创建 cashier-mobile 和 customer-mobile 占位项目
- 配置 pnpm workspace

admin-ui/src/service/cashier/pricingService.ts

@@ -0,0 +1,61 @@
+import { request } from '@/utils/request'
+import { BaseService } from '../BaseService'
+
+/**
+ * 定价策略服务
+ */
+class PricingService extends BaseService {
+  constructor() {
+    super('/cashier/admin/pricing-strategy')
+  }
+
+  /**
+   * 查询策略下的套餐列表
+   */
+  async getPackages(strategyId: number): Promise<any[]> {
+    const res: any = await request({
+      url: `/cashier/admin/pricing-package/list`,
+      method: 'get',
+      params: { strategyId },
+    })
+    return res.data || []
+  }
+
+  /**
+   * 新增套餐
+   */
+  async addPackage(data: any) {
+    const res: any = await request({
+      url: '/cashier/admin/pricing-package',
+      method: 'post',
+      data,
+    })
+    return res.data
+  }
+
+  /**
+   * 修改套餐
+   */
+  async updatePackage(data: any) {
+    const res: any = await request({
+      url: '/cashier/admin/pricing-package',
+      method: 'put',
+      data,
+    })
+    return res.data
+  }
+
+  /**
+   * 删除套餐
+   */
+  async deletePackage(id: number) {
+    const res: any = await request({
+      url: `/cashier/admin/pricing-package/${id}`,
+      method: 'delete',
+    })
+    return res.data
+  }
+}
+
+/** 定价策略服务单例 */
+export const pricingService = new PricingService()