feat(puzzle): 添加模板封面图片字段并更新相关逻辑

- 在PuzzleTemplateDTO和TemplateCreateRequest中新增coverImage字段
- 在PuzzleTemplateEntity中新增coverImage字段并映射到数据库
- 更新FaceServiceImpl以支持获取模板封面图片URL
- 修改Mapper XML文件以支持coverImage字段的读写操作
- 调整SQL查询和插入语句以包含新的coverImage字段
- 更新三拼图内容页面逻辑以使用模板封面图片URL

src/main/java/com/ycwl/basic/puzzle/dto/PuzzleTemplateDTO.java

@@ -53,6 +53,11 @@ public class PuzzleTemplateDTO {
      */
     private String backgroundImage;
 
+    /**
+     * 模板封面图片URL
+     */
+    private String coverImage;
+
     /**
      * 模板描述
      */

src/main/java/com/ycwl/basic/puzzle/dto/TemplateCreateRequest.java

@@ -46,6 +46,11 @@ public class TemplateCreateRequest {
      */
     private String backgroundImage;
 
+    /**
+     * 模板封面图片URL
+     */
+    private String coverImage;
+
     /**
      * 模板描述
      */

src/main/java/com/ycwl/basic/puzzle/entity/PuzzleTemplateEntity.java

@@ -67,6 +67,12 @@ public class PuzzleTemplateEntity {
     @TableField("background_image")
     private String backgroundImage;
 
+    /**
+     * 模板封面图片URL（用于前端管理界面展示）
+     */
+    @TableField("cover_image")
+    private String coverImage;
+
     /**
      * 模板描述
      */

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

@@ -51,7 +51,9 @@ import com.ycwl.basic.pricing.dto.ProductItem;
 import com.ycwl.basic.pricing.enums.ProductType;
 import com.ycwl.basic.pricing.service.IPriceCalculationService;
 import com.ycwl.basic.puzzle.entity.PuzzleGenerationRecordEntity;
+import com.ycwl.basic.puzzle.entity.PuzzleTemplateEntity;
 import com.ycwl.basic.puzzle.mapper.PuzzleGenerationRecordMapper;
+import com.ycwl.basic.puzzle.mapper.PuzzleTemplateMapper;
 import com.ycwl.basic.repository.DeviceRepository;
 import com.ycwl.basic.repository.FaceRepository;
 import com.ycwl.basic.repository.MemberRelationRepository;
@@ -184,6 +186,7 @@ public class FaceServiceImpl implements FaceService {
     private PuzzleGenerationRecordMapper puzzleGenerationRecordMapper;
     @Autowired
     private IPriceCalculationService iPriceCalculationService;
+    private PuzzleTemplateMapper puzzleTemplateMapper;
 
     @Override
     public ApiResponse<PageInfo<FaceRespVO>> pageQuery(FaceReqQuery faceReqQuery) {
@@ -454,6 +457,7 @@ public class FaceServiceImpl implements FaceService {
         if (count > 0) {
             ContentPageVO sfpContent = new ContentPageVO();
             List<PuzzleGenerationRecordEntity> records = puzzleGenerationRecordMapper.listByFaceId(faceId);
+            PuzzleTemplateEntity template = puzzleTemplateMapper.getById(records.getFirst().getTemplateId());
             sfpContent.setName("三拼图");
             sfpContent.setGroup("plog");
             sfpContent.setScenicId(face.getScenicId());
@@ -461,8 +465,8 @@ public class FaceServiceImpl implements FaceService {
             sfpContent.setSourceType(3);
             sfpContent.setLockType(-1);
             sfpContent.setContentId(records.getFirst().getId());
-            sfpContent.setTemplateId(records.getFirst().getTemplateId());
-            sfpContent.setTemplateCoverUrl(records.getFirst().getResultImageUrl());
+            sfpContent.setTemplateId(template.getId());
+            sfpContent.setTemplateCoverUrl(template.getCoverImage());
             sfpContent.setGoodsType(3);
             sfpContent.setSort(0);
             IsBuyRespVO isBuyRespVO = orderBiz.isBuy(face.getMemberId(), face.getScenicId(), 5, records.getFirst().getTemplateId());