♻️ Restructure: Move Astro to repository root

BREAKING CHANGE: Astro project is now at repository root
- Removed dealplustech-astro subdirectory
- Moved all Astro files to root
- Updated PostCSS config to .cjs
- Removed old Next.js files

✅ 11 pages built successfully
✅ Cookie consent banner included
✅ Privacy/Terms links in footer
✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/prismjs/plugins/autolinker/prism-autolinker.min.js

@@ -1 +0,0 @@
-!function(){if("undefined"!=typeof Prism){var i=/\b([a-z]{3,7}:\/\/|tel:)[\w\-+%~/.:=&!$'()*,;@]+(?:\?[\w\-+%~/.:=?&!$'()*,;@]*)?(?:#[\w\-+%~/.:#=?&!$'()*,;@]*)?/,n=/\b\S+@[\w.]+[a-z]{2}/,t=/\[([^\]]+)\]\(([^)]+)\)/,e=["comment","url","attr-value","string"];Prism.plugins.autolinker={processGrammar:function(r){r&&!r["url-link"]&&(Prism.languages.DFS(r,(function(r,a,l){e.indexOf(l)>-1&&!Array.isArray(a)&&(a.pattern||(a=this[r]={pattern:a}),a.inside=a.inside||{},"comment"==l&&(a.inside["md-link"]=t),"attr-value"==l?Prism.languages.insertBefore("inside","punctuation",{"url-link":i},a):a.inside["url-link"]=i,a.inside["email-link"]=n)})),r["url-link"]=i,r["email-link"]=n)}},Prism.hooks.add("before-highlight",(function(i){Prism.plugins.autolinker.processGrammar(i.grammar)})),Prism.hooks.add("wrap",(function(i){if(/-link$/.test(i.type)){i.tag="a";var n=i.content;if("email-link"==i.type&&0!=n.indexOf("mailto:"))n="mailto:"+n;else if("md-link"==i.type){var e=i.content.match(t);n=e[2],i.content=e[1]}i.attributes.href=n;try{i.content=decodeURIComponent(i.content)}catch(i){}}}))}}();