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/components/prism-prolog.min.js

@@ -0,0 +1 @@
+Prism.languages.prolog={comment:{pattern:/\/\*[\s\S]*?\*\/|%.*/,greedy:!0},string:{pattern:/(["'])(?:\1\1|\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1(?!\1)/,greedy:!0},builtin:/\b(?:fx|fy|xf[xy]?|yfx?)\b/,function:/\b[a-z]\w*(?:(?=\()|\/\d+)/,number:/\b\d+(?:\.\d*)?/,operator:/[:\\=><\-?*@\/;+^|!$.]+|\b(?:is|mod|not|xor)\b/,punctuation:/[(){}\[\],]/};