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/vocabularies/metadata.ts

@@ -0,0 +1,17 @@
+import type {Vocabulary} from "../types"
+
+export const metadataVocabulary: Vocabulary = [
+  "title",
+  "description",
+  "default",
+  "deprecated",
+  "readOnly",
+  "writeOnly",
+  "examples",
+]
+
+export const contentVocabulary: Vocabulary = [
+  "contentMediaType",
+  "contentEncoding",
+  "contentSchema",
+]