(improvement)(chat) queryDimensionValue query top10 in queue (#277)

chat/api/src/main/java/com/tencent/supersonic/chat/api/pojo/request/DimensionValueReq.java

@@ -1,16 +1,21 @@
 package com.tencent.supersonic.chat.api.pojo.request;
 
+import javax.validation.constraints.NotNull;
 import lombok.Data;
 
 @Data
 public class DimensionValueReq {
+
     private Integer agentId;
 
+    @NotNull
     private Long elementID;
 
+    @NotNull
     private Long modelId;
 
     private String bizName;
 
+    @NotNull
     private Object value;
 }