NCBACK-25 add protection for audio and use hash method from library

src/main/java/ru/soune/nocopy/dto/file/SimilarFileDTO.java

@@ -5,10 +5,11 @@ import lombok.Value;
 
 @Value
 @Builder
-public class SimilarFileResponse {
+public class SimilarFileDTO {
     String fileId;
     String originalFileName;
     Long fileSize;
     Integer hammingDistance;
     String similarityLevel;
+    Long ownerId;
 }