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/container/vite-plugin-container.js

@@ -0,0 +1,15 @@
+const virtualModuleId = "astro:container";
+function astroContainer() {
+  return {
+    name: "astro:container",
+    enforce: "pre",
+    resolveId(id) {
+      if (id === virtualModuleId) {
+        return this.resolve("astro/virtual-modules/container.js");
+      }
+    }
+  };
+}
+export {
+  astroContainer as default
+};