Emphasis border rule
An emphasis body may not begin or end with whitespace. Only the character after the closing marker was checked, so
=ssh.mode = "system"= to run under it
closed the verbatim at the middle = and rendered as two spans with the
quoted value loose between them. The closer is now required to sit against
a non-whitespace character, and an opener followed by whitespace no longer
opens.
Affected both renderers, since they share the parse. Corpus conformance is unchanged at 11/12.
Keyword colors
The renderer hardcoded green for DONE and orange for TODO. Everything
else it draws is semantic and inherits the embedding app's appearance;
those two were concrete hues matching no palette. OrgKeywordStyle carries
them and defaults to semantic, so the package invents nothing:
OrgView(source, keywords: OrgKeywordStyle(todo: .gbOK, done: .gbDone))
OrgRenderOptions stays Foundation-only, so this lives in OrgSwiftUI.
78 tests green.