Implemented log archive.

Wino.Core.Domain/Interfaces/IFileService.cs

@@ -8,5 +8,13 @@ namespace Wino.Core.Domain.Interfaces
         Task<string> CopyFileAsync(string sourceFilePath, string destinationFolderPath);
         Task<Stream> GetFileStreamAsync(string folderPath, string fileName);
         Task<string> GetFileContentByApplicationUriAsync(string resourcePath);
+
+        /// <summary>
+        /// Zips all existing logs and saves to picked destination folder.
+        /// </summary>
+        /// <param name="logsFolder">Folder path where logs are stored.</param>
+        /// <param name="destinationFolder">Target path to save the archive file.</param>
+        /// <returns>True if zip is created with at least one item, false if logs are not found.</returns>
+        Task<bool> SaveLogsToFolderAsync(string logsFolder, string destinationFolder);
     }
 }