Hugo v0.158.0 deprecated .Site.LanguageCode in favor of .Site.Language.Locale, and deprecated the languageCode config key in favor of locale. Update both to silence the build warnings. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E8Es4ZhoJG6vrxN3GLGhLz