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/dist/refs/data.json

@@ -0,0 +1,13 @@
+{
+  "$id": "https://raw.githubusercontent.com/ajv-validator/ajv/master/lib/refs/data.json#",
+  "description": "Meta-schema for $data reference (JSON AnySchema extension proposal)",
+  "type": "object",
+  "required": ["$data"],
+  "properties": {
+    "$data": {
+      "type": "string",
+      "anyOf": [{"format": "relative-json-pointer"}, {"format": "json-pointer"}]
+    }
+  },
+  "additionalProperties": false
+}