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/@libsql/isomorphic-ws/README.md

@@ -0,0 +1,16 @@
+# `@libsql/isomorphic-ws`
+
+This package provides `WebSocket` on Node (using `ws`) and in Deno and Cloudflare Workers (using the native `WebSocket`). Supports both CommonJS and ES modules.
+
+```javascript
+import { WebSocket } from "@libsql/isomorphic-ws";
+
+const ws = new WebSocket("ws://localhost:8080");
+ws.onopen = (event) => {
+    ws.send("Hello");
+};
+ws.onmessage = (event) => {
+    console.log(event.data);
+    ws.close();
+};
+```