txt section numbering, @typeface :middle/:lift and html scale, NewGardinerOmni, html :leading (from dev 9fa469dd74ed)

Section headings under txt are numbered inside a @document only; @typeface
gains :middle and :lift and its :scale now means the same in html and
pdf; NewGardinerOmni ships (OFL 1.1, Mark-Jan Nederhof) and @egyptian /
@chinese replace @cjk; @table :leading and :colsep reach html; kdesc
--typeface help names the flag; @document.txt is a Python class.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

sks/list/list.py

@@ -29,7 +29,8 @@ class List(klammer_base.Klammer_base):
         body = "\n\n".join([f"\\item {e}" for e in self.items])
         command = {'ol' : 'enumerate', 'ul' : 'itemize'}[self.list_type]
         init = ""
-        if self.__dict__.get("initial") and self.initial != 1:
+        # :initial is @ol's alone (list.k); a @ul has no such attribute.
+        if getattr(self, "initial", 1) != 1:
             init = "\\addtocounter{enumi}{" + str(self.initial - 1) + "}"
         #topsep = '[noitemsep,topsep=0pt]'
         topsep = "[noitemsep,topsep=0pt," if self.compressed else "[topsep=0pt,itemsep=2pt,"