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/vite-plugin-html/index.d.ts

@@ -0,0 +1,8 @@
+export default function html(): {
+    name: string;
+    options(options: any): void;
+    transform(source: string, id: string): Promise<{
+        code: string;
+        map: import("magic-string").SourceMap;
+    } | undefined>;
+};