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/prismjs/plugins/match-braces/prism-match-braces.min.css

@@ -0,0 +1 @@
+.token.punctuation.brace-hover,.token.punctuation.brace-selected{outline:solid 1px}.rainbow-braces .token.punctuation.brace-level-1,.rainbow-braces .token.punctuation.brace-level-5,.rainbow-braces .token.punctuation.brace-level-9{color:#e50;opacity:1}.rainbow-braces .token.punctuation.brace-level-10,.rainbow-braces .token.punctuation.brace-level-2,.rainbow-braces .token.punctuation.brace-level-6{color:#0b3;opacity:1}.rainbow-braces .token.punctuation.brace-level-11,.rainbow-braces .token.punctuation.brace-level-3,.rainbow-braces .token.punctuation.brace-level-7{color:#26f;opacity:1}.rainbow-braces .token.punctuation.brace-level-12,.rainbow-braces .token.punctuation.brace-level-4,.rainbow-braces .token.punctuation.brace-level-8{color:#e0e;opacity:1}