feat(培训参与者): 新增驾驶员肖像显示功能

为培训参与者视图对象新增驾驶员肖像URL字段，新增填充方法从驾驶员数据中获取肖像地址并赋值，在查询参与者列表时调用该填充逻辑。

src/main/java/com/hotwj/platform/securityManagement/trainingParticipant/domain/vo/HotTrainingParticipantVo.java

@@ -146,4 +146,9 @@ public class HotTrainingParticipantVo implements Serializable {
      */
     private Long canAudit;
 
+    /**
+     * 驾驶员肖像
+     */
+    private String driverPhotoImgUrl;
+
 }

src/main/java/com/hotwj/platform/securityManagement/trainingParticipant/service/impl/HotTrainingParticipantServiceImpl.java

@@ -80,6 +80,9 @@ public class HotTrainingParticipantServiceImpl implements IHotTrainingParticipan
         Page<HotTrainingParticipantVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
         if (result.getRecords() != null) {
             result.getRecords().forEach(this::fillCanAuditStatus);
+            // 填充学员信息
+            result.getRecords().forEach(this::fillDriverInfo);
+
         }
         return TableDataInfo.build(result);
     }
@@ -124,6 +127,16 @@ public class HotTrainingParticipantServiceImpl implements IHotTrainingParticipan
         vo.setCanAudit(canAudit ? 1L : 0L);
     }
 
+    private void fillDriverInfo(HotTrainingParticipantVo vo) {
+        if (vo == null) {
+            return;
+        }
+        HotDriverVo hotDriverVo = driverMapper.selectVoById(vo.getUserId());
+        if (hotDriverVo != null) {
+            vo.setDriverPhotoImgUrl(hotDriverVo.getPortraitUrl());
+        }
+    }
+
     private LambdaQueryWrapper<HotTrainingParticipant> buildQueryWrapper(HotTrainingParticipantBo bo) {
         Map<String, Object> params = bo.getParams();
         LambdaQueryWrapper<HotTrainingParticipant> lqw = Wrappers.lambdaQuery();