♻️ 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/components/prism-regex.min.js

@@ -1 +0,0 @@
-!function(a){var e={pattern:/\\[\\(){}[\]^$+*?|.]/,alias:"escape"},n=/\\(?:x[\da-fA-F]{2}|u[\da-fA-F]{4}|u\{[\da-fA-F]+\}|0[0-7]{0,2}|[123][0-7]{2}|c[a-zA-Z]|.)/,t="(?:[^\\\\-]|"+n.source+")",s=RegExp(t+"-"+t),i={pattern:/(<|')[^<>']+(?=[>']$)/,lookbehind:!0,alias:"variable"};a.languages.regex={"char-class":{pattern:/((?:^|[^\\])(?:\\\\)*)\[(?:[^\\\]]|\\[\s\S])*\]/,lookbehind:!0,inside:{"char-class-negation":{pattern:/(^\[)\^/,lookbehind:!0,alias:"operator"},"char-class-punctuation":{pattern:/^\[|\]$/,alias:"punctuation"},range:{pattern:s,inside:{escape:n,"range-punctuation":{pattern:/-/,alias:"operator"}}},"special-escape":e,"char-set":{pattern:/\\[wsd]|\\p\{[^{}]+\}/i,alias:"class-name"},escape:n}},"special-escape":e,"char-set":{pattern:/\.|\\[wsd]|\\p\{[^{}]+\}/i,alias:"class-name"},backreference:[{pattern:/\\(?![123][0-7]{2})[1-9]/,alias:"keyword"},{pattern:/\\k<[^<>']+>/,alias:"keyword",inside:{"group-name":i}}],anchor:{pattern:/[$^]|\\[ABbGZz]/,alias:"function"},escape:n,group:[{pattern:/\((?:\?(?:<[^<>']+>|'[^<>']+'|[>:]|<?[=!]|[idmnsuxU]+(?:-[idmnsuxU]+)?:?))?/,alias:"punctuation",inside:{"group-name":i}},{pattern:/\)/,alias:"punctuation"}],quantifier:{pattern:/(?:[+*?]|\{\d+(?:,\d*)?\})[?+]?/,alias:"number"},alternation:{pattern:/\|/,alias:"keyword"}}}(Prism);