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/treeview/prism-treeview.min.js

@@ -0,0 +1 @@
+"undefined"!=typeof Prism&&(Prism.languages.treeview={"treeview-part":{pattern:/^.+/m,inside:{"entry-line":[{pattern:/\|-- |├── /,alias:"line-h"},{pattern:/\| {3}|│ {3}/,alias:"line-v"},{pattern:/`-- |└── /,alias:"line-v-last"},{pattern:/ {4}/,alias:"line-v-gap"}],"entry-name":{pattern:/.*\S.*/,inside:{operator:/ -> /}}}}},Prism.hooks.add("wrap",(function(e){if("treeview"===e.language&&"entry-name"===e.type){var t=e.classes,n=/(^|[^\\])\/\s*$/;if(n.test(e.content))e.content=e.content.replace(n,"$1"),t.push("dir");else{e.content=e.content.replace(/(^|[^\\])[=*|]\s*$/,"$1");for(var a=e.content.toLowerCase().replace(/\s+/g,"").split(".");a.length>1;)a.shift(),t.push("ext-"+a.join("-"))}"."===e.content[0]&&t.push("dotfile")}})));