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

src/main/java/ru/soune/nocopy/service/file/FileEntityService.java

@@ -49,7 +49,7 @@ public class FileEntityService {
                 throw new IOException("File not found on disk: " + filePath);
             }
 
-            Map<String, Integer> imageHash = Map.of();
+            Map<String, Long> imageHash = Map.of();
 
             if (session.getFileType().startsWith("image")) {
                 imageHash = imageHashService.calculateHash(filePath);