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/zod/v3/helpers/partialUtil.d.ts

@@ -0,0 +1,8 @@
+import type { ZodArray, ZodNullable, ZodObject, ZodOptional, ZodRawShape, ZodTuple, ZodTupleItems, ZodTypeAny } from "../types.js";
+export declare namespace partialUtil {
+    type DeepPartial<T extends ZodTypeAny> = T extends ZodObject<ZodRawShape> ? ZodObject<{
+        [k in keyof T["shape"]]: ZodOptional<DeepPartial<T["shape"][k]>>;
+    }, T["_def"]["unknownKeys"], T["_def"]["catchall"]> : T extends ZodArray<infer Type, infer Card> ? ZodArray<DeepPartial<Type>, Card> : T extends ZodOptional<infer Type> ? ZodOptional<DeepPartial<Type>> : T extends ZodNullable<infer Type> ? ZodNullable<DeepPartial<Type>> : T extends ZodTuple<infer Items> ? {
+        [k in keyof Items]: Items[k] extends ZodTypeAny ? DeepPartial<Items[k]> : never;
+    } extends infer PI ? PI extends ZodTupleItems ? ZodTuple<PI> : never : never : T;
+}