Added transcription of audio and video files to local data sources (#1081)

Co-authored-by: Paul Koudelka <106623909+PaulKoudelka@users.noreply.github.com>

app/MindWork AI Studio/Tools/DataBackup/DataBackupEntryKind.cs

@@ -45,6 +45,11 @@ public enum DataBackupEntryKind
     /// </summary>
     VECTOR_STORES,
 
+    /// <summary>
+    /// The transcripts of the audio and video files of the data sources. Making them again costs money.
+    /// </summary>
+    MEDIA_TRANSCRIPTS,
+
     /// <summary>
     /// The copies of the settings which every version of AI Studio keeps for itself.
     /// </summary>