Enhance documentation in QueryResourceRes by adding a description for the sliceStartTime field, specifying it as the recording start time in Unix timestamp format.

Author: seymourtang

agora-rest-client-core/src/main/java/io/agora/rest/services/cloudrecording/api/res/QueryResourceRes.java

@@ -679,6 +679,10 @@ public static class MixRecordingHLSAndMP4ServerResponse {
         @JsonProperty("fileList")
         private List<FileDetail> fileList;
 
+        /**
+         * The recording start time of the file, the Unix timestamp, in
+         * seconds.
+         */
         @JsonProperty("sliceStartTime")
         private Long sliceStartTime;