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-jsstacktrace.min.js

@@ -0,0 +1 @@
+Prism.languages.jsstacktrace={"error-message":{pattern:/^\S.*/m,alias:"string"},"stack-frame":{pattern:/(^[ \t]+)at[ \t].*/m,lookbehind:!0,inside:{"not-my-code":{pattern:/^at[ \t]+(?!\s)(?:node\.js|<unknown>|.*(?:node_modules|\(<anonymous>\)|\(<unknown>|<anonymous>$|\(internal\/|\(node\.js)).*/m,alias:"comment"},filename:{pattern:/(\bat\s+(?!\s)|\()(?:[a-zA-Z]:)?[^():]+(?=:)/,lookbehind:!0,alias:"url"},function:{pattern:/(\bat\s+(?:new\s+)?)(?!\s)[_$a-zA-Z\xA0-\uFFFF<][.$\w\xA0-\uFFFF<>]*/,lookbehind:!0,inside:{punctuation:/\./}},punctuation:/[()]/,keyword:/\b(?:at|new)\b/,alias:{pattern:/\[(?:as\s+)?(?!\s)[_$a-zA-Z\xA0-\uFFFF][$\w\xA0-\uFFFF]*\]/,alias:"variable"},"line-number":{pattern:/:\d+(?::\d+)?\b/,alias:"number",inside:{punctuation:/:/}}}}};