refactor(coupon): 移除优惠券相关模块代码

- 删除优惠券控制器相关类，包括 AppCouponController 和 CouponController
- 移除优惠券记录控制器 CouponRecordController
- 删除优惠券数据访问层接口及实现类
- 移除优惠券相关的实体类、请求响应对象
- 清理业务逻辑层中与优惠券相关的服务接口及实现
- 从 PriceBiz 中移除优惠券相关导入依赖
- 从任务类 DownloadNotificationTasker 中移除优惠券相关导入
- 删除优惠券相关的 MyBatis 映射文件

src/main/java/com/ycwl/basic/controller/mobile/AppCouponController.java

@@ -1,47 +0,0 @@
-package com.ycwl.basic.controller.mobile;
-
-import com.ycwl.basic.constant.BaseContextHandler;
-import com.ycwl.basic.model.mobile.coupon.req.ClaimCouponReq;
-import com.ycwl.basic.model.pc.coupon.entity.CouponEntity;
-import com.ycwl.basic.model.pc.couponRecord.entity.CouponRecordEntity;
-import com.ycwl.basic.service.mobile.AppCouponRecordService;
-import com.ycwl.basic.utils.ApiResponse;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
-
-@RestController
-@RequestMapping("/api/mobile/coupon/v1")
-public class AppCouponController {
-    
-    @Autowired
-    private AppCouponRecordService appCouponRecordService;
-    
-    /**
-     * 根据memberId、faceId和type查找优惠券记录
-     */
-    @GetMapping("/record")
-    public ApiResponse<CouponRecordEntity> getCouponRecords(
-            @RequestParam Long faceId,
-            @RequestParam Integer type) {
-        CouponRecordEntity record = appCouponRecordService.queryByMemberIdAndFaceIdAndType(Long.valueOf(BaseContextHandler.getUserId()), faceId, type);
-        return ApiResponse.success(record);
-    }
-    
-    /**
-     * 领取优惠券
-     */
-    @PostMapping("/claim")
-    public ApiResponse<CouponEntity> claimCoupon(@RequestBody ClaimCouponReq request) {
-        request.setMemberId(Long.valueOf(BaseContextHandler.getUserId()));
-        try {
-            CouponEntity coupon = appCouponRecordService.claimCoupon(
-                request.getMemberId(), 
-                request.getFaceId(), 
-                request.getType()
-            );
-            return ApiResponse.success(coupon);
-        } catch (RuntimeException e) {
-            return ApiResponse.fail(e.getMessage());
-        }
-    }
-}