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/parse5/dist/common/foreign-content.d.ts

@@ -0,0 +1,9 @@
+import { TAG_ID as $, NS } from './html.js';
+import type { TagToken, Attribute } from './token.js';
+export declare const SVG_TAG_NAMES_ADJUSTMENT_MAP: Map<string, string>;
+export declare function causesExit(startTagToken: TagToken): boolean;
+export declare function adjustTokenMathMLAttrs(token: TagToken): void;
+export declare function adjustTokenSVGAttrs(token: TagToken): void;
+export declare function adjustTokenXMLAttrs(token: TagToken): void;
+export declare function adjustTokenSVGTagName(token: TagToken): void;
+export declare function isIntegrationPoint(tn: $, ns: NS, attrs: Attribute[], foreignNS?: NS): boolean;