♻️ 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
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✅ Ready for Easypanel deployment (no root dir needed)

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

dealplustech-astro/node_modules/prismjs/components/prism-pcaxis.js

@@ -1,53 +0,0 @@
-Prism.languages.pcaxis = {
-	'string': /"[^"]*"/,
-	'keyword': {
-		pattern: /((?:^|;)\s*)[-A-Z\d]+(?:\s*\[[-\w]+\])?(?:\s*\("[^"]*"(?:,\s*"[^"]*")*\))?(?=\s*=)/,
-		lookbehind: true,
-		greedy: true,
-		inside: {
-			'keyword': /^[-A-Z\d]+/,
-			'language': {
-				pattern: /^(\s*)\[[-\w]+\]/,
-				lookbehind: true,
-				inside: {
-					'punctuation': /^\[|\]$/,
-					'property': /[-\w]+/
-				}
-			},
-			'sub-key': {
-				pattern: /^(\s*)\S[\s\S]*/,
-				lookbehind: true,
-				inside: {
-					'parameter': {
-						pattern: /"[^"]*"/,
-						alias: 'property'
-					},
-					'punctuation': /^\(|\)$|,/
-				}
-			}
-		}
-	},
-	'operator': /=/,
-	'tlist': {
-		pattern: /TLIST\s*\(\s*\w+(?:(?:\s*,\s*"[^"]*")+|\s*,\s*"[^"]*"-"[^"]*")?\s*\)/,
-		greedy: true,
-		inside: {
-			'function': /^TLIST/,
-			'property': {
-				pattern: /^(\s*\(\s*)\w+/,
-				lookbehind: true
-			},
-			'string': /"[^"]*"/,
-			'punctuation': /[(),]/,
-			'operator': /-/
-		}
-	},
-	'punctuation': /[;,]/,
-	'number': {
-		pattern: /(^|\s)\d+(?:\.\d+)?(?!\S)/,
-		lookbehind: true
-	},
-	'boolean': /NO|YES/,
-};
-
-Prism.languages.px = Prism.languages.pcaxis;