Typed -LAYER (and LAYER in scripts and headless sessions) now starts the
option loop instead of listing the layers and ending: ?, Make, Set, New,
Rename, ON, OFF, Color (with Truecolor), Ltype, LWeight, TRansparency,
Plot, Freeze, Thaw, LOck, Unlock and Description, until Enter. MATerial,
stAte and rEconcile report "not available yet" without taking the next
token. Every option runs the layer.* command bodies, so the session is
one undo step and refusals match the JSON form. Turning the current
layer off asks first; freezing it is refused.
layer.new and layer.set now reject a linetype that is not loaded (or
ByLayer/ByBlock), and layer.set refuses to rename a layer onto the name
of another existing layer.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
