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/dset/dist/index.js

@@ -0,0 +1,11 @@
+function dset(obj, keys, val) {
+	keys.split && (keys=keys.split('.'));
+	var i=0, l=keys.length, t=obj, x, k;
+	while (i < l) {
+		k = ''+keys[i++];
+		if (k === '__proto__' || k === 'constructor' || k === 'prototype') break;
+		t = t[k] = (i === l) ? val : (typeof(x=t[k])===typeof(keys)) ? x : (keys[i]*0 !== 0 || !!~(''+keys[i]).indexOf('.')) ? {} : [];
+	}
+}
+
+exports.dset = dset;

node_modules/dset/dist/index.min.js

@@ -0,0 +1 @@
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e(t.dset={})}(this,(function(t){t.dset=function(t,e,o){e.split&&(e=e.split("."));for(var n,f,p=0,i=e.length,d=t;p<i&&"__proto__"!=(f=""+e[p++])&&"constructor"!==f&&"prototype"!==f;)d=d[f]=p===i?o:typeof(n=d[f])==typeof e?n:0*e[p]!=0||~(""+e[p]).indexOf(".")?{}:[]}}));

node_modules/dset/dist/index.mjs

@@ -0,0 +1,9 @@
+export function dset(obj, keys, val) {
+	keys.split && (keys=keys.split('.'));
+	var i=0, l=keys.length, t=obj, x, k;
+	while (i < l) {
+		k = ''+keys[i++];
+		if (k === '__proto__' || k === 'constructor' || k === 'prototype') break;
+		t = t[k] = (i === l) ? val : (typeof(x=t[k])===typeof(keys)) ? x : (keys[i]*0 !== 0 || !!~(''+keys[i]).indexOf('.')) ? {} : [];
+	}
+}