folder.create {parent, name} makes a folder on disk (one undo step; undo
removes it again while it is empty). photo.moveToFolder {folder, ids?}
moves the photos' files with their XMP sidecars into another folder and
relinks them as one undo step (undo moves them back); virtual copies
follow their master. It never overwrites: a name already taken in the
destination refuses the whole move with an actionable error. Missing or
offline originals and Local photos are refused. Across volumes a file is
copied, compared byte for byte and only then removed. The move holds a
row in the activity stack.
UI: New Folder on Disk… and Move Selected Photos Here on a Folders row,
Move to Folder… in the photo context menu; strings in every catalog.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>