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/arg/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "arg",
+  "version": "5.0.2",
+  "description": "Unopinionated, no-frills CLI argument parser",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "repository": "vercel/arg",
+  "author": "Josh Junon <junon@wavetilt.com>",
+  "license": "MIT",
+  "files": [
+    "index.js",
+    "index.d.ts"
+  ],
+  "scripts": {
+    "test": "WARN_EXIT=1 jest --coverage -w 2"
+  },
+  "devDependencies": {
+    "chai": "^4.1.1",
+    "jest": "^27.0.6",
+    "prettier": "^2.3.2"
+  },
+  "prettier": {
+    "arrowParens": "always",
+    "singleQuote": true,
+    "tabWidth": 2,
+    "trailingComma": "none"
+  }
+}