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/prompts/lib/dateparts/month.js

@@ -0,0 +1,33 @@
+'use strict';
+
+const DatePart = require('./datepart');
+
+class Month extends DatePart {
+  constructor(opts={}) {
+    super(opts);
+  }
+
+  up() {
+    this.date.setMonth(this.date.getMonth() + 1);
+  }
+
+  down() {
+    this.date.setMonth(this.date.getMonth() - 1);
+  }
+
+  setTo(val) {
+    val = parseInt(val.substr(-2)) - 1;
+    this.date.setMonth(val < 0 ? 0 : val);
+  }
+
+  toString() {
+    let month = this.date.getMonth();
+    let tl = this.token.length;
+    return tl === 2 ? String(month + 1).padStart(2, '0')
+           : tl === 3 ? this.locales.monthsShort[month]
+             : tl === 4 ? this.locales.months[month]
+               : String(month + 1);
+  }
+}
+
+module.exports = Month;