refactor(service): 优化拼图模板处理逻辑

- 将遍历所有拼图模板改为只处理第一个模板
- 简化内容页面对象创建流程
- 保留原有的购买状态检查和价格计算逻辑
- 提高代码执行效率，避免不必要的循环操作

src/main/java/com/ycwl/basic/service/pc/impl/FaceServiceImpl.java

@@ -487,7 +487,7 @@ public class FaceServiceImpl implements FaceService {
         List<PuzzleTemplateEntity> puzzleTemplateEntityList = puzzleTemplateMapper.list(face.getScenicId(), null, 1);
         if (!puzzleTemplateEntityList.isEmpty()) {
             List<PuzzleGenerationRecordEntity> records = puzzleGenerationRecordMapper.listByFaceId(faceId);
-            puzzleTemplateEntityList.forEach(template -> {
+            PuzzleTemplateEntity template = puzzleTemplateEntityList.getFirst();
             Optional<PuzzleGenerationRecordEntity> optionalRecord = records.stream().filter(r -> r.getTemplateId().equals(template.getId())).findFirst();
             ContentPageVO sfpContent = new ContentPageVO();
             sfpContent.setName(template.getName());
@@ -526,7 +526,6 @@ public class FaceServiceImpl implements FaceService {
                 sfpContent.setFreeCount(1);
             }
             contentList.add(1, sfpContent);
-            });
         }
         SourceReqQuery sourceReqQuery = new SourceReqQuery();
         sourceReqQuery.setScenicId(face.getScenicId());