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/property-information/lib/util/case-sensitive-transform.js

@@ -0,0 +1,11 @@
+/**
+ * @param {Record<string, string>} attributes
+ *   Attributes.
+ * @param {string} attribute
+ *   Attribute.
+ * @returns {string}
+ *   Transformed attribute.
+ */
+export function caseSensitiveTransform(attributes, attribute) {
+  return attribute in attributes ? attributes[attribute] : attribute
+}