♻️ 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-gedcom.js

@@ -1,28 +0,0 @@
-Prism.languages.gedcom = {
-	'line-value': {
-		// Preceded by level, optional pointer, and tag
-		pattern: /(^[\t ]*\d+ +(?:@\w[\w!"$%&'()*+,\-./:;<=>?[\\\]^`{|}~\x80-\xfe #]*@ +)?\w+ ).+/m,
-		lookbehind: true,
-		inside: {
-			'pointer': {
-				pattern: /^@\w[\w!"$%&'()*+,\-./:;<=>?[\\\]^`{|}~\x80-\xfe #]*@$/,
-				alias: 'variable'
-			}
-		}
-	},
-	'record': {
-		// Preceded by level and optional pointer
-		pattern: /(^[\t ]*\d+ +(?:@\w[\w!"$%&'()*+,\-./:;<=>?[\\\]^`{|}~\x80-\xfe #]*@ +)?)\w+/m,
-		lookbehind: true,
-		alias: 'tag'
-	},
-	'level': {
-		pattern: /(^[\t ]*)\d+/m,
-		lookbehind: true,
-		alias: 'number'
-	},
-	'pointer': {
-		pattern: /@\w[\w!"$%&'()*+,\-./:;<=>?[\\\]^`{|}~\x80-\xfe #]*@/,
-		alias: 'variable'
-	}
-};