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/cli/info/infra/npm-package-manager.d.ts

@@ -0,0 +1,10 @@
+import type { CommandExecutor } from '../../definitions.js';
+import type { PackageManager } from '../definitions.js';
+export declare class NpmPackageManager implements PackageManager {
+    #private;
+    readonly name: string;
+    constructor({ commandExecutor }: {
+        commandExecutor: CommandExecutor;
+    });
+    getPackageVersion(name: string): Promise<string | undefined>;
+}