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-flow.js

@@ -0,0 +1,35 @@
+(function (Prism) {
+	Prism.languages.flow = Prism.languages.extend('javascript', {});
+
+	Prism.languages.insertBefore('flow', 'keyword', {
+		'type': [
+			{
+				pattern: /\b(?:[Bb]oolean|Function|[Nn]umber|[Ss]tring|[Ss]ymbol|any|mixed|null|void)\b/,
+				alias: 'class-name'
+			}
+		]
+	});
+	Prism.languages.flow['function-variable'].pattern = /(?!\s)[_$a-z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*=\s*(?:function\b|(?:\([^()]*\)(?:\s*:\s*\w+)?|(?!\s)[_$a-z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)\s*=>))/i;
+	delete Prism.languages.flow['parameter'];
+
+	Prism.languages.insertBefore('flow', 'operator', {
+		'flow-punctuation': {
+			pattern: /\{\||\|\}/,
+			alias: 'punctuation'
+		}
+	});
+
+	if (!Array.isArray(Prism.languages.flow.keyword)) {
+		Prism.languages.flow.keyword = [Prism.languages.flow.keyword];
+	}
+	Prism.languages.flow.keyword.unshift(
+		{
+			pattern: /(^|[^$]\b)(?:Class|declare|opaque|type)\b(?!\$)/,
+			lookbehind: true
+		},
+		{
+			pattern: /(^|[^$]\B)\$(?:Diff|Enum|Exact|Keys|ObjMap|PropertyType|Record|Shape|Subtype|Supertype|await)\b(?!\$)/,
+			lookbehind: true
+		}
+	);
+}(Prism));