♻️ 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-xojo.js

@@ -1,21 +0,0 @@
-Prism.languages.xojo = {
-	'comment': {
-		pattern: /(?:'|\/\/|Rem\b).+/i,
-		greedy: true
-	},
-	'string': {
-		pattern: /"(?:""|[^"])*"/,
-		greedy: true
-	},
-	'number': [
-		/(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:E[+-]?\d+)?/i,
-		/&[bchou][a-z\d]+/i
-	],
-	'directive': {
-		pattern: /#(?:Else|ElseIf|Endif|If|Pragma)\b/i,
-		alias: 'property'
-	},
-	'keyword': /\b(?:AddHandler|App|Array|As(?:signs)?|Auto|Boolean|Break|By(?:Ref|Val)|Byte|Call|Case|Catch|CFStringRef|CGFloat|Class|Color|Const|Continue|CString|Currency|CurrentMethodName|Declare|Delegate|Dim|Do(?:uble|wnTo)?|Each|Else(?:If)?|End|Enumeration|Event|Exception|Exit|Extends|False|Finally|For|Function|Get|GetTypeInfo|Global|GOTO|If|Implements|In|Inherits|Int(?:8|16|32|64|eger|erface)?|Lib|Loop|Me|Module|Next|Nil|Object|Optional|OSType|ParamArray|Private|Property|Protected|PString|Ptr|Raise(?:Event)?|ReDim|RemoveHandler|Return|Select(?:or)?|Self|Set|Shared|Short|Single|Soft|Static|Step|String|Sub|Super|Text|Then|To|True|Try|Ubound|UInt(?:8|16|32|64|eger)?|Until|Using|Var(?:iant)?|Wend|While|WindowPtr|WString)\b/i,
-	'operator': /<[=>]?|>=?|[+\-*\/\\^=]|\b(?:AddressOf|And|Ctype|IsA?|Mod|New|Not|Or|WeakAddressOf|Xor)\b/i,
-	'punctuation': /[.,;:()]/
-};