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/vite-plugin-astro-server/error.d.ts

@@ -0,0 +1,7 @@
+import type { ModuleLoader } from '../core/module-loader/index.js';
+import type { AstroConfig } from '../types/public/config.js';
+import type { DevPipeline } from './pipeline.js';
+export declare function recordServerError(loader: ModuleLoader, config: AstroConfig, { logger }: DevPipeline, _err: unknown): {
+    error: Error;
+    errorWithMetadata: import("../core/errors/errors.js").ErrorWithMetadata;
+};