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/@astrojs/markdown-remark/dist/rehype-prism.js

@@ -0,0 +1,19 @@
+import { runHighlighterWithAstro } from "@astrojs/prism/dist/highlighter";
+import { highlightCodeBlocks } from "./highlight.js";
+const rehypePrism = (excludeLangs) => {
+  return async (tree) => {
+    await highlightCodeBlocks(
+      tree,
+      (code, language) => {
+        let { html, classLanguage } = runHighlighterWithAstro(language, code);
+        return Promise.resolve(
+          `<pre class="${classLanguage}" data-language="${language}"><code is:raw class="${classLanguage}">${html}</code></pre>`
+        );
+      },
+      excludeLangs
+    );
+  };
+};
+export {
+  rehypePrism
+};