Unique backup ID.
Backup file path.
Hash of original content (for verification).
OptionalgitGit snapshot taken together with this backup.
OptionalgroupOperation group (see BackupOptions.group).
Original file path.
OptionalreasonReason for backup (e.g., "pre-transformation", "build-validation").
Size of original file in bytes.
Timestamp when backup was created.
Backup metadata.