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/semver/functions/parse.js

@@ -0,0 +1,18 @@
+'use strict'
+
+const SemVer = require('../classes/semver')
+const parse = (version, options, throwErrors = false) => {
+  if (version instanceof SemVer) {
+    return version
+  }
+  try {
+    return new SemVer(version, options)
+  } catch (er) {
+    if (!throwErrors) {
+      return null
+    }
+    throw er
+  }
+}
+
+module.exports = parse