if wheat/chaff have compile- or run-failure because of ill-formedness, unless all of them fail, it qualifies merely as check-block failure, and shouldn't fail the whole examplar run. This implies runExamplarAsync() is "successful" except when every wheat/chaff is ill-formed
segment file created by replacing first include file() or import file(). Don't rely on comment hacks
remove pre-existing wheat/chaff segment file as they cause probs
allow wheat/chaff dirs to have subdirs (to put modules in) FSBrowser.tsx: showPath doesn't hide files in developer mode cpo.arr: from lists module, provide length as list-length, sort-by, all, all2 lists.arr: provide type and data