Remove a private part reference from the lead-in notes, fix the Options and
New menu paths, say that release ZIPs never auto-update, describe current
Cincinnati CL ordering, clamp validation coverage and empty-plate saving,
list every built-in engine, and drop internal decision labels.
Lets the desktop app self-update like CncSender, but only restarts after
the user confirms via a clickable status-bar prompt -- an open, unsaved
nest must never be discarded automatically. The feed URL is a blank-by-
default, per-machine setting (File > Options), since it's operator
infrastructure that doesn't belong in source control; Deploy-OpenNest.ps1
packages releases for whatever feed host/path the operator supplies.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>