Remove 606 lines of hand-rolled markdown parsing from main.lux and the
unused markdown.lux split file. Replace with `import markdown` using the
new markdown package (path dependency at ../markdown).
This fixes the heading-in-list rendering bug where `- ### Title` was
showing literal `### ` text. Now renders as `<li><h3>Title</h3></li>`.
Also adds strikethrough support (~~text~~).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Build a complete static site generator in Lux that faithfully clones
blu.cx (elmstatic). Generates 14 post pages, section indexes, tag pages,
and a home page with snippets grid from markdown content.
ISSUES.md documents 15 Lux language limitations found during the project.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
