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/astro/dist/prerender/utils.js

@@ -0,0 +1,15 @@
+import { getOutDirWithinCwd } from "../core/build/common.js";
+function getPrerenderDefault(config) {
+  return config.output !== "server";
+}
+function getServerOutputDirectory(settings) {
+  return settings.buildOutput === "server" ? settings.config.build.server : getOutDirWithinCwd(settings.config.outDir);
+}
+function getClientOutputDirectory(settings) {
+  return settings.buildOutput === "server" ? settings.config.build.client : settings.config.outDir;
+}
+export {
+  getClientOutputDirectory,
+  getPrerenderDefault,
+  getServerOutputDirectory
+};