♻️ 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-brainfuck.js

@@ -1,20 +0,0 @@
-Prism.languages.brainfuck = {
-	'pointer': {
-		pattern: /<|>/,
-		alias: 'keyword'
-	},
-	'increment': {
-		pattern: /\+/,
-		alias: 'inserted'
-	},
-	'decrement': {
-		pattern: /-/,
-		alias: 'deleted'
-	},
-	'branching': {
-		pattern: /\[|\]/,
-		alias: 'important'
-	},
-	'operator': /[.,]/,
-	'comment': /\S+/
-};