fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/astro/dist/core/shiki.js

@@ -0,0 +1,16 @@
+import {
+  createShikiHighlighter
+} from "@astrojs/markdown-remark";
+const cachedHighlighters = /* @__PURE__ */ new Map();
+function getCachedHighlighter(opts) {
+  const key = JSON.stringify(opts, Object.keys(opts).sort());
+  if (cachedHighlighters.has(key)) {
+    return cachedHighlighters.get(key);
+  }
+  const highlighter = createShikiHighlighter(opts);
+  cachedHighlighters.set(key, highlighter);
+  return highlighter;
+}
+export {
+  getCachedHighlighter
+};