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/mdast-util-to-markdown/lib/handle/image-reference.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"image-reference.d.ts","sourceRoot":"","sources":["image-reference.js"],"names":[],"mappings":"AAOA;;;;;;GAMG;AACH,qCANW,cAAc,KACd,OAAO,GAAG,SAAS,SACnB,KAAK,QACL,IAAI,GACF,MAAM,CA2ClB;;;;oCArDyC,OAAO;6BAAP,OAAO;2BADnB,wBAAwB;0BAAxB,wBAAwB;AAwDtD;;GAEG;AACH,uCAFa,MAAM,CAIlB"}