#+begin_src inside a list item rendered as literal prose — visible in the iOS
README view on any repo whose Contributing section puts commands under numbered
steps.
OrgListItem.content was [[OrgObject]], paragraphs only, so the parser folded
every non-marker line into the running paragraph. An item's body is now parsed as
a document of its own and held as [OrgElement]; the sublist field is gone, a
nested list being just a .list in the content.
Paragraphs wrap in <p> only when the item has more than one, matching orgo;
blocks follow bare. The SwiftUI path renders item content through
OrgBlockListView, the same view the document body uses.
Breaking for anyone constructing an OrgListItem (only the parser and tests do).
Depends on krz/org-conformance!1 for the listblocks case. 89 tests green.