fix:修复注释错误

src/Application/TakeoutSaaS.Application/App/Billings/Handlers/CreateBillingCommandHandler.cs

@@ -30,7 +30,7 @@ public sealed class CreateBillingCommandHandler(
             throw new BusinessException(ErrorCodes.NotFound, "租户不存在");
         }
 
-        // 2. (空行后) 构建账单实体
+        // 2. 构建账单实体
         var now = DateTime.UtcNow;
         var statementNo = $"BIL-{now:yyyyMMdd}-{idGenerator.NextId()}";
         var lineItemsJson = JsonSerializer.Serialize(request.LineItems);
@@ -54,11 +54,11 @@ public sealed class CreateBillingCommandHandler(
             Notes = request.Notes
         };
 
-        // 3. (空行后) 持久化账单
+        // 3. 持久化账单
         await billingRepository.AddAsync(billing, cancellationToken);
         await billingRepository.SaveChangesAsync(cancellationToken);
 
-        // 4. (空行后) 返回详情 DTO
+        // 4. 返回详情 DTO
         return billing.ToBillingDetailDto([], tenant.Name);
     }
 }