Publish CLAUDE.md snapshot at /CLAUDE.md, linked from footers

Serve it as text/plain on deploy so browsers display the raw text
instead of downloading; add .dockerignore so local image builds can't
ship stale _site or host node_modules.

.eleventy.js

@@ -55,6 +55,12 @@ module.exports = function (eleventyConfig) {
   eleventyConfig.addPassthroughCopy("img");
   eleventyConfig.addPassthroughCopy("favicon.svg");
 
+  // A snapshot copy of ~/.claude/CLAUDE.md, published verbatim at /CLAUDE.md
+  // (linked from the footer). Keep it out of template processing so it ships
+  // as raw markdown instead of being rendered to HTML.
+  eleventyConfig.addPassthroughCopy({ "assets/CLAUDE.md": "CLAUDE.md" });
+  eleventyConfig.ignores.add("assets/CLAUDE.md");
+
   // KaTeX: render $$...$$ at build time into static markup. Ship katex.min.css
   // plus its fonts/ as a sibling so the stylesheet's url(fonts/...) resolves.
   eleventyConfig.addPassthroughCopy({