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/eastasianwidth/README.md

@@ -0,0 +1,32 @@
+# East Asian Width
+
+Get [East Asian Width](http://www.unicode.org/reports/tr11/) from a character.
+
+'F'(Fullwidth), 'H'(Halfwidth), 'W'(Wide), 'Na'(Narrow), 'A'(Ambiguous) or 'N'(Natural).
+
+Original Code is [東アジアの文字幅 (East Asian Width) の判定 - 中途](http://d.hatena.ne.jp/takenspc/20111126#1322252878).
+
+## Install
+
+    $ npm install eastasianwidth
+
+## Usage
+
+    var eaw = require('eastasianwidth');
+    console.log(eaw.eastAsianWidth('￦')) // 'F'
+    console.log(eaw.eastAsianWidth('｡')) // 'H'
+    console.log(eaw.eastAsianWidth('뀀')) // 'W'
+    console.log(eaw.eastAsianWidth('a')) // 'Na'
+    console.log(eaw.eastAsianWidth('①')) // 'A'
+    console.log(eaw.eastAsianWidth('ف')) // 'N'
+
+    console.log(eaw.characterLength('￦')) // 2
+    console.log(eaw.characterLength('｡')) // 1
+    console.log(eaw.characterLength('뀀')) // 2
+    console.log(eaw.characterLength('a')) // 1
+    console.log(eaw.characterLength('①')) // 2
+    console.log(eaw.characterLength('ف')) // 1
+
+    console.log(eaw.length('あいうえお')) // 10
+    console.log(eaw.length('abcdefg')) // 7
+    console.log(eaw.length('￠￦｡ￜㄅ뀀¢⟭a⊙①بف')) // 19