refactor(pricing): 重构优惠券管理相关代码

- 替换 Lombok 的 @RequiredArgsConstructor 注解为 Spring 的 @Autowired 和 @Lazy 注解
- 更新 VoucherManagementController、VoucherBatchServiceImpl 和 VoucherCodeServiceImpl 类的依赖注入方式
- 优化代码结构，提高可读性和可维护性

src/main/java/com/ycwl/basic/pricing/controller/VoucherManagementController.java

@@ -12,17 +12,21 @@ import com.ycwl.basic.pricing.service.VoucherBatchService;
 import com.ycwl.basic.pricing.service.VoucherCodeService;
 import com.ycwl.basic.utils.ApiResponse;
 import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 
 @RestController
 @RequestMapping("/api/pricing/voucher")
-@RequiredArgsConstructor
 public class VoucherManagementController {
-    
-    private final VoucherBatchService voucherBatchService;
-    private final VoucherCodeService voucherCodeService;
+    @Autowired
+    @Lazy
+    private VoucherBatchService voucherBatchService;
+    @Autowired
+    @Lazy
+    private VoucherCodeService voucherCodeService;
     
     @PostMapping("/batch/create")
     public ApiResponse<Long> createBatch(@RequestBody VoucherBatchCreateReq req) {