refactor(headless): 优化维度值映射处理逻辑并添加查询响应中的代理ID字段

- 简化了维度值映射列表的删除操作代码结构
- 移除了不必要的空行以提高代码可读性
- 在查询响应对象中添加了agentId字段
- 优化了流式处理的链式调用方式
- 调整了数据集服务查询方法的参数构建方式

chat/api/src/main/java/com/tencent/supersonic/chat/api/pojo/response/QueryResp.java

@@ -13,6 +13,7 @@ public class QueryResp {
     private Long questionId;
     private Date createTime;
     private Long chatId;
+    private Integer agentId;
     private Integer score;
     private String feedback;
     private String queryText;

headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/DimensionServiceImpl.java

@@ -490,14 +490,13 @@ public class DimensionServiceImpl extends ServiceImpl<DimensionDOMapper, Dimensi
         // 收集需要删除的 values（alias 为空的）
         Set<String> valuesToDelete = req.getDimValueMaps().stream()
                 .filter(dimValueMap -> CollectionUtils.isEmpty(dimValueMap.getAlias()))
-                .map(DimValueMap::getValue)
-                .collect(Collectors.toSet());
+                .map(DimValueMap::getValue).collect(Collectors.toSet());
 
         // 一次性删除所有需要删除的数据
         if (!valuesToDelete.isEmpty()) {
-            dimValueMapList = dimValueMapList.stream()
-                    .filter(map -> !valuesToDelete.contains(map.getValue()))
-                    .collect(Collectors.toList());
+            dimValueMapList =
+                    dimValueMapList.stream().filter(map -> !valuesToDelete.contains(map.getValue()))
+                            .collect(Collectors.toList());
             // 同时从 existingMap 中移除
             existingMap.keySet().removeAll(valuesToDelete);
         }

headless/server/src/main/java/com/tencent/supersonic/headless/server/service/impl/SchemaServiceImpl.java

@@ -413,13 +413,11 @@ public class SchemaServiceImpl implements SchemaService {
     public List<ItemResp> getDomainDataSetTree() {
         List<DomainResp> domainResps = domainService.getDomainList();
         List<ItemResp> itemResps = domainResps.stream().map(domain -> new ItemResp(domain.getId(),
-                domain.getParentId(), domain.getName(), TypeEnums.DOMAIN))
-                .toList();
+                domain.getParentId(), domain.getName(), TypeEnums.DOMAIN)).toList();
         Map<Long, ItemResp> itemRespMap =
                 itemResps.stream().collect(Collectors.toMap(ItemResp::getId, item -> item));
-        List<DataSetResp> dataSetResps = dataSetService.getDataSetList(MetaFilter.builder()
-                        .status(StatusEnum.ONLINE.getCode())
-                .build());
+        List<DataSetResp> dataSetResps = dataSetService
+                .getDataSetList(MetaFilter.builder().status(StatusEnum.ONLINE.getCode()).build());
         for (DataSetResp dataSetResp : dataSetResps) {
             ItemResp itemResp = itemRespMap.get(dataSetResp.getDomainId());
             if (itemResp != null) {