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/package-manager-detector/dist/constants.d.mts

@@ -0,0 +1,8 @@
+import { A as Agent, a as AgentName } from './shared/package-manager-detector.DksAilYA.mjs';
+
+declare const AGENTS: Agent[];
+declare const LOCKS: Record<string, AgentName>;
+declare const INSTALL_METADATA: Record<string, AgentName>;
+declare const INSTALL_PAGE: Record<Agent, string>;
+
+export { AGENTS, INSTALL_METADATA, INSTALL_PAGE, LOCKS };