Root cause of 'clicked from overview, bold but menus closed': cross-page
markdown links point at area/file.md; the handler happily loads .md
URLs, but the sidebar keys on the URL path — contains-URL expansion and
the active-link styling compare against extension-less nav URLs, so a
.md path rendered the page with its menu closed and the current item
unhighlighted. (My curl checks had used clean URLs, which is why it
worked in testing but not from the overview page.)
Fix: ShowDocumentation 301-redirects .md paths to the clean canonical
form (query preserved; browsers re-attach fragments), and
renderDocPage normalizes the path for nav expansion/grouping as a belt-
and-braces. Live-verified: .../get_ratings.md -> 301 ->
clean page with both containing menus open and the get_ratings link
carrying the active class.
John O'Keefe
a1ac5b1541