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/jtd/error.ts

@@ -0,0 +1,23 @@
+import type {KeywordErrorDefinition, KeywordErrorCxt, ErrorObject} from "../../types"
+import {_, Code} from "../../compile/codegen"
+
+export type _JTDTypeError<K extends string, T extends string, S> = ErrorObject<
+  K,
+  {type: T; nullable: boolean},
+  S
+>
+
+export function typeError(t: string): KeywordErrorDefinition {
+  return {
+    message: (cxt) => typeErrorMessage(cxt, t),
+    params: (cxt) => typeErrorParams(cxt, t),
+  }
+}
+
+export function typeErrorMessage({parentSchema}: KeywordErrorCxt, t: string): string {
+  return parentSchema?.nullable ? `must be ${t} or null` : `must be ${t}`
+}
+
+export function typeErrorParams({parentSchema}: KeywordErrorCxt, t: string): Code {
+  return _`{type: ${t}, nullable: ${!!parentSchema?.nullable}}`
+}