feat(order): 添加未来模板一口价购买逻辑

- 引入 IsBuyBatchRespVO 类以支持批量购买响应
- 实现视频模板买断逻辑，优先检查模板是否已购买
- 在商品类型为0时，查询视频模板并判断用户是否已购买
- 若已购买，直接返回订单ID及购买状态，跳过价格查询
- 保留原有价格查询逻辑作为兜底方案

src/main/java/com/ycwl/basic/biz/OrderBiz.java

@@ -6,6 +6,7 @@ import com.ycwl.basic.mapper.OrderMapper;
 import com.ycwl.basic.mapper.SourceMapper;
 import com.ycwl.basic.mapper.StatisticsMapper;
 import com.ycwl.basic.mapper.VideoMapper;
+import com.ycwl.basic.model.mobile.order.IsBuyBatchRespVO;
 import com.ycwl.basic.model.mobile.order.IsBuyRespVO;
 import com.ycwl.basic.model.mobile.order.PriceObj;
 import com.ycwl.basic.model.mobile.statistic.req.StatisticsRecordAddReq;
@@ -180,6 +181,20 @@ public class OrderBiz {
             respVO.setSlashPrice(BigDecimal.ZERO);
             return respVO;
         }
+        // 未来模板一口价
+        if (goodsType == 0) {
+            // 视频，可以买断模板
+            VideoEntity video = videoRepository.getVideo(goodsId);
+            if (video != null && video.getTemplateId() != null) {
+                OrderEntity templateBuy = orderMapper.getUserBuyFaceItem(memberId, faceId, -1, video.getTemplateId());
+                if (templateBuy != null) {
+                    respVO.setOrderId(templateBuy.getId());
+                    respVO.setBuy(true);
+                    respVO.setFree(false);
+                    return respVO;
+                }
+            }
+        }
         PriceObj priceObj = queryPrice(scenicId, goodsType, goodsId);
         if (priceObj == null) {
             return respVO;