The ansi target, txt table styles, kdesc reference from ref/, typeface and table-width fixes (from dev fcec5e2e77ac)

Since the previous release: Machine::read_string() (the fs::path/std::string
overload pair split); kdesc -c and -u rendered from the ref/ reflection
klammerset; a fit column's tex width measured in TeX over every entry;
@typeface resolving to the family its css declares (a store directory name
now works in html) and hieroglyphs in @unicode_examples set in their
typeface; the ansi target -- plain text with the type styles a terminal can
show, identical to txt once the escape sequences are stripped -- with the
txt @table carrying :header_style, :style and :hline; @block anchoring,
@table spacing and the Image_quality state variable; and the rewritten
doc/klammertext_for_llm.md.

kpy/klammertext.cpp

@@ -326,7 +326,7 @@ PyObject* Machine_read(PyObject* obj, PyObject* arg)
     std::string text = PyUnicode_AsUTF8(arg);
     return guarded([&]() -> PyObject* {
         set_string_source();
-        machine_of(obj).read(text + "\n");
+        machine_of(obj).read_string(text + "\n");
         Py_RETURN_NONE;
     });
 }