developer_attribute_initialize: renaming an attribute follows it downstream

Each tab's Attribute field now has a callback: a hidden last_attr#
remembers the previous name, and on a change every developer node
downstream, through the graph and inside any Developer Solver's chain
and Vis tabs, has each string parameter equal to the old name set to
the new one, as one undo step. Nodes off the downstream graph are
untouched. Additive, still 1.0; an existing instance's shadow fills in
on its first edit.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

 ...galante.developer_attribute_initialize.1.0.hdalc | Bin 12566 -> 14953 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)

diff --git a/otls/sop_lsgalante.developer_attribute_initialize.1.0.hdalc b/otls/sop_lsgalante.developer_attribute_initialize.1.0.hdalc
index 550c178..20a73ae 100644
Binary files a/otls/sop_lsgalante.developer_attribute_initialize.1.0.hdalc and b/otls/sop_lsgalante.developer_attribute_initialize.1.0.hdalc differ