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/detect-libc/index.d.ts

@@ -0,0 +1,14 @@
+// Copyright 2017 Lovell Fuller and others.
+// SPDX-License-Identifier: Apache-2.0
+
+export const GLIBC: 'glibc';
+export const MUSL: 'musl';
+
+export function family(): Promise<string | null>;
+export function familySync(): string | null;
+
+export function isNonGlibcLinux(): Promise<boolean>;
+export function isNonGlibcLinuxSync(): boolean;
+
+export function version(): Promise<string | null>;
+export function versionSync(): string | null;