Read the full markdown body of a translated executive brief for
lang from runDir, searching the standard candidate paths
(executive-brief_<lang>.md → extended/executive-brief_<lang>.md).
SPDX HTML-comment preambles are stripped using the same logic as the
SEO-metadata path, so the returned markdown starts at the first real
content line (# Headline or similar).
Returns null when runDir is missing, the language is English, or
no candidate file exists. The caller is expected to fall back to the
English aggregated body in that case — see render-one.ts.
Read the full markdown body of a translated executive brief for
langfromrunDir, searching the standard candidate paths (executive-brief_<lang>.md→extended/executive-brief_<lang>.md). SPDX HTML-comment preambles are stripped using the same logic as the SEO-metadata path, so the returned markdown starts at the first real content line (# Headlineor similar).Returns
nullwhenrunDiris missing, the language is English, or no candidate file exists. The caller is expected to fall back to the English aggregated body in that case — seerender-one.ts.