Added backups of all data, restorable on another computer (#1008)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

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

@@ -0,0 +1,13 @@
+namespace AIStudio.Tools.DataBackup;
+
+/// <summary>
+/// How a backup ended.
+/// </summary>
+/// <param name="Success">Whether the backup was written completely. A cancelled backup counts as no success.</param>
+/// <param name="Cancelled">Whether the user stopped the backup.</param>
+/// <param name="ArchivePath">The file of the backup.</param>
+/// <param name="FileCount">How many files the backup holds.</param>
+/// <param name="Bytes">How large these files are together, before they were compressed.</param>
+/// <param name="IncludesDataSourceIndexes">Whether the backup holds the indexes of the data sources.</param>
+/// <param name="Issue">Why the backup failed, for the user. Empty when it did not fail.</param>
+public sealed record DataBackupResult(bool Success, bool Cancelled, string ArchivePath, int FileCount, long Bytes, bool IncludesDataSourceIndexes, string Issue);