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/ajv/lib/refs/json-schema-2019-09/meta/content.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/content",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/content": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Content vocabulary meta-schema",
+
+  "type": ["object", "boolean"],
+  "properties": {
+    "contentMediaType": {"type": "string"},
+    "contentEncoding": {"type": "string"},
+    "contentSchema": {"$recursiveRef": "#"}
+  }
+}