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/astro/dist/env/config.d.ts

@@ -0,0 +1,10 @@
+import type { BooleanField, BooleanFieldInput, EnumField, EnumFieldInput, NumberField, NumberFieldInput, StringField, StringFieldInput } from './schema.js';
+/**
+ * Return a valid env field to use in this Astro config for `env.schema`.
+ */
+export declare const envField: {
+    string: (options: StringFieldInput) => StringField;
+    number: (options: NumberFieldInput) => NumberField;
+    boolean: (options: BooleanFieldInput) => BooleanField;
+    enum: <T extends string>(options: EnumFieldInput<T>) => EnumField;
+};