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/util/compile-pattern.js

@@ -0,0 +1,24 @@
+/**
+ * @import {CompilePattern} from '../types.js'
+ */
+
+/**
+ * @type {CompilePattern}
+ */
+export function compilePattern(pattern) {
+  if (!pattern._compiled) {
+    const before =
+      (pattern.atBreak ? '[\\r\\n][\\t ]*' : '') +
+      (pattern.before ? '(?:' + pattern.before + ')' : '')
+
+    pattern._compiled = new RegExp(
+      (before ? '(' + before + ')' : '') +
+        (/[|\\{}()[\]^$+*?.-]/.test(pattern.character) ? '\\' : '') +
+        pattern.character +
+        (pattern.after ? '(?:' + pattern.after + ')' : ''),
+      'g'
+    )
+  }
+
+  return pattern._compiled
+}