♻️ 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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✅ 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-protobuf.js

@@ -1,43 +0,0 @@
-(function (Prism) {
-
-	var builtinTypes = /\b(?:bool|bytes|double|s?fixed(?:32|64)|float|[su]?int(?:32|64)|string)\b/;
-
-	Prism.languages.protobuf = Prism.languages.extend('clike', {
-		'class-name': [
-			{
-				pattern: /(\b(?:enum|extend|message|service)\s+)[A-Za-z_]\w*(?=\s*\{)/,
-				lookbehind: true
-			},
-			{
-				pattern: /(\b(?:rpc\s+\w+|returns)\s*\(\s*(?:stream\s+)?)\.?[A-Za-z_]\w*(?:\.[A-Za-z_]\w*)*(?=\s*\))/,
-				lookbehind: true
-			}
-		],
-		'keyword': /\b(?:enum|extend|extensions|import|message|oneof|option|optional|package|public|repeated|required|reserved|returns|rpc(?=\s+\w)|service|stream|syntax|to)\b(?!\s*=\s*\d)/,
-		'function': /\b[a-z_]\w*(?=\s*\()/i
-	});
-
-	Prism.languages.insertBefore('protobuf', 'operator', {
-		'map': {
-			pattern: /\bmap<\s*[\w.]+\s*,\s*[\w.]+\s*>(?=\s+[a-z_]\w*\s*[=;])/i,
-			alias: 'class-name',
-			inside: {
-				'punctuation': /[<>.,]/,
-				'builtin': builtinTypes
-			}
-		},
-		'builtin': builtinTypes,
-		'positional-class-name': {
-			pattern: /(?:\b|\B\.)[a-z_]\w*(?:\.[a-z_]\w*)*(?=\s+[a-z_]\w*\s*[=;])/i,
-			alias: 'class-name',
-			inside: {
-				'punctuation': /\./
-			}
-		},
-		'annotation': {
-			pattern: /(\[\s*)[a-z_]\w*(?=\s*=)/i,
-			lookbehind: true
-		}
-	});
-
-}(Prism));