Wire the @replit/codemirror-lang-csharp Lezer grammar into @getpaseo/highlight following the existing per-language pattern (Java/Rust/Swift). Map the cs extension to the parser and alias the csharp and c# markdown fence names so fenced code blocks highlight.
Register csharpLanguage.parser rather than the package's raw parser export: the highlight styleTags are applied only inside csharpLanguage (via parser.configure), so the raw parser would parse but render unstyled.
Closes#1527
Co-authored-by: Clemens Wagner <wagner.clemens@gmx.de>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
