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/widest-line/index.d.ts

@@ -0,0 +1,12 @@
+/**
+Get the visual width of the widest line in a string - the number of columns required to display it.
+
+@example
+```
+import widestLine from 'widest-line';
+
+widestLine('古\n\u001B[1m@\u001B[22m');
+//=> 2
+```
+*/
+export default function widestLine(string: string): number;