fix latex enumerate counter level inside bullet lists

[zayeem06]

Wrong enumerate counter level for ordered lists nested in bullet lists

S_get_enumlevel walks the ancestor chain but tests cmark_node_get_list_type(node) (the starting node) on every iteration instead of tmp, the ancestor it is actually looking at. When the ordered list sits inside a bullet list, the enclosing itemize levels get counted too, so a list with start > 1 emits \setcounter{enumii} rather than \setcounter{enumi} and the counter it sets is not the one LaTeX uses, leaving the list numbered from 1.

The fix queries the type of tmp so only ordered-list ancestors raise the level. Added an api_test that parses - outer / 5. five and checks the LaTeX output uses enumi; worth confirming the expected string matches on your end.

[jgm]

great, thanks!