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/document/document_class.cpp

@@ -340,9 +340,14 @@ std::string Document_class::typeface_preamble()
     std::stringstream ss {};
     for (size_t i = 0; i < m_extra_typefaces.size(); i++) {
         const auto& [name, scale] = m_extra_typefaces[i];
+        // Compared by directory name, as collect_typefaces() compares: a
+        // @typeface may write the family name or the store's directory
+        // name, and family_name holds what the css declares (2026-09-12),
+        // so a name-for-name comparison missed the directory spelling and
+        // left \ktface<n> undefined in the .tex (found 2026-09-17).
         const Resolved_font* rf = nullptr;
         for (const auto& f : m_resolved_extra)
-            if (f.family_name == name) rf = &f;
+            if (f.dir_name == name_to_dirname(name)) rf = &f;
         if (!rf) continue;
         // \newfontfamily declares a switch command, unlike \setmainfont,
         // which changes the document's font permanently.
@@ -351,22 +356,3 @@ std::string Document_class::typeface_preamble()
     }
     return ss.str();
 }
-
-/*
-void output_msg(const std::string& msg)
-{
-    std::cout << red;
-    (void)K::log(1, msg);
-    std::cout << black;
-}    
-
-void Document_class::create_directory(const std::string& directory)
-{
-    if (write_files) {
-        fs::create_directories(directory);
-    } else {
-        output_msg("Output directory: " + directory);
-    }
-}
-
-*/