fix:修复注释错误

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

@@ -24,7 +24,7 @@ public sealed class UpdateBillingStatusCommandHandler(
             throw new BusinessException(ErrorCodes.NotFound, "账单不存在");
         }
 
-        // 2. (空行后) 状态转换规则校验
+        // 2. 状态转换规则校验
         if (billing.Status == TenantBillingStatus.Paid && request.NewStatus != TenantBillingStatus.Paid)
         {
             throw new BusinessException(ErrorCodes.BusinessError, "已支付账单不允许改为其他状态");
@@ -35,7 +35,7 @@ public sealed class UpdateBillingStatusCommandHandler(
             throw new BusinessException(ErrorCodes.BusinessError, "已取消账单不允许变更状态");
         }
 
-        // 3. (空行后) 更新状态与备注
+        // 3. 更新状态与备注
         billing.Status = request.NewStatus;
         if (!string.IsNullOrWhiteSpace(request.Notes))
         {
@@ -44,7 +44,7 @@ public sealed class UpdateBillingStatusCommandHandler(
                 : $"{billing.Notes}\n[状态变更] {request.Notes}";
         }
 
-        // 4. (空行后) 持久化
+        // 4. 持久化
         await billingRepository.UpdateAsync(billing, cancellationToken);
         await billingRepository.SaveChangesAsync(cancellationToken);