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/micromark/dev/lib/postprocess.js

@@ -0,0 +1,19 @@
+/**
+ * @import {Event} from 'micromark-util-types'
+ */
+
+import {subtokenize} from 'micromark-util-subtokenize'
+
+/**
+ * @param {Array<Event>} events
+ *   Events.
+ * @returns {Array<Event>}
+ *   Events.
+ */
+export function postprocess(events) {
+  while (!subtokenize(events)) {
+    // Empty
+  }
+
+  return events
+}