The picker walks the machine like the tab does — back, forward, up, breadcrumbs, a path
box, a new folder — and "Move here" puts the file or folder in the folder being looked
at; it says why it can't when it can't (already here, into itself, a name clash). POST
/api/files/move is a rename when the two ends share a filesystem and otherwise a task:
on a NAS every move between datasets is a different filesystem, and a rename there is
EXDEV. The copy is built under a hidden temporary name beside its destination, renamed
into place once complete, and only then is the original removed, so a failure or a
cancel leaves the original as it was. Modes, times, symlinks and, as root, owners are kept.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
