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/github-slugger/README.md

@@ -0,0 +1,75 @@
+# github-slugger
+
+[![npm][npm-image]][npm-url]
+[![Build][build-badge]][build]
+
+[npm-image]: https://img.shields.io/npm/v/github-slugger.svg?style=flat-square
+[npm-url]: https://www.npmjs.com/package/github-slugger
+[build-badge]: https://github.com/Flet/github-slugger/workflows/main/badge.svg
+[build]: https://github.com/Flet/github-slugger/actions
+
+Generate a slug just like GitHub does for markdown headings. It also ensures slugs are unique in the same way GitHub does it. The overall goal of this package is to emulate the way GitHub handles generating markdown heading anchors as close as possible.
+
+This project is not a markdown or HTML parser: passing `alpha *bravo* charlie`
+or `alpha <em>bravo</em> charlie` doesn’t work.
+Instead pass the plain text value of the heading: `alpha bravo charlie`.
+
+## Install
+
+```
+npm install github-slugger
+```
+
+## Usage
+
+```js
+import GithubSlugger from 'github-slugger'
+
+const slugger = new GithubSlugger()
+
+slugger.slug('foo')
+// returns 'foo'
+
+slugger.slug('foo')
+// returns 'foo-1'
+
+slugger.slug('bar')
+// returns 'bar'
+
+slugger.slug('foo')
+// returns 'foo-2'
+
+slugger.slug('Привет non-latin 你好')
+// returns 'привет-non-latin-你好'
+
+slugger.slug('😄 emoji')
+// returns '-emoji'
+
+slugger.reset()
+
+slugger.slug('foo')
+// returns 'foo'
+```
+
+Check [`test/fixtures.json`](test/fixtures.json) for more examples.
+
+If you need, you can also use the underlying implementation which does not keep
+track of the previously slugged strings (not recommended):
+
+```js
+import GithubSlugger, {slug} from 'github-slugger'
+
+slug('foo bar baz')
+// returns 'foo-bar-baz'
+
+slug('foo bar baz')
+// returns the same slug 'foo-bar-baz' because it does not keep track
+```
+
+## Contributing
+
+Contributions welcome! Please read the [contributing guidelines](CONTRIBUTING.md) first.
+
+## License
+
+[ISC](LICENSE)