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/node-fetch-native/lib/native.cjs

@@ -0,0 +1,11 @@
+const nodeFetch = require("../dist/native.cjs");
+
+function fetch(input, options) {
+  return nodeFetch.fetch(input, options);
+}
+
+for (const key in nodeFetch) {
+  fetch[key] = nodeFetch[key];
+}
+
+module.exports = fetch;