feat(video-review): 支持机位多维度评价功能

- 新增NestedMapTypeHandler处理嵌套Map与JSON互转
- 修改VideoReview相关实体类和DTO以支持嵌套Map结构
- 更新数据库查询逻辑以适配新的评价数据结构
- 优化平均分计算方法以处理多机位多维度评分
- 完善MyBatis配置中的typeHandler引用
- 补充视频查询接口返回任务开始结束时间字段
- 修正SQL关联查询条件确保数据准确性

src/main/java/com/ycwl/basic/service/impl/VideoReviewServiceImpl.java

@@ -218,7 +218,7 @@ public class VideoReviewServiceImpl implements VideoReviewService {
      * 计算机位评价各维度的平均值
      */
     private Map<String, BigDecimal> calculateCameraPositionAverage() {
-        List<Map<String, Integer>> allRatings = videoReviewMapper.selectAllCameraPositionRatings();
+        List<Map<String, Map<String, Integer>>> allRatings = videoReviewMapper.selectAllCameraPositionRatings();
 
         if (allRatings == null || allRatings.isEmpty()) {
             return new HashMap<>();
@@ -226,10 +226,15 @@ public class VideoReviewServiceImpl implements VideoReviewService {
 
         // 统计各维度的总分和次数
         Map<String, List<Integer>> dimensionScores = new HashMap<>();
-        for (Map<String, Integer> rating : allRatings) {
+        for (Map<String, Map<String, Integer>> rating : allRatings) {
             if (rating == null) continue;
-            for (Map.Entry<String, Integer> entry : rating.entrySet()) {
-                dimensionScores.computeIfAbsent(entry.getKey(), k -> new ArrayList<>()).add(entry.getValue());
+            // 遍历每个机位
+            for (Map<String, Integer> deviceRatings : rating.values()) {
+                if (deviceRatings == null) continue;
+                // 遍历该机位的每个维度
+                for (Map.Entry<String, Integer> entry : deviceRatings.entrySet()) {
+                    dimensionScores.computeIfAbsent(entry.getKey(), k -> new ArrayList<>()).add(entry.getValue());
+                }
             }
         }