♻️ 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-erlang.js

@@ -1,44 +0,0 @@
-Prism.languages.erlang = {
-	'comment': /%.+/,
-	'string': {
-		pattern: /"(?:\\.|[^\\"\r\n])*"/,
-		greedy: true
-	},
-	'quoted-function': {
-		pattern: /'(?:\\.|[^\\'\r\n])+'(?=\()/,
-		alias: 'function'
-	},
-	'quoted-atom': {
-		pattern: /'(?:\\.|[^\\'\r\n])+'/,
-		alias: 'atom'
-	},
-	'boolean': /\b(?:false|true)\b/,
-	'keyword': /\b(?:after|begin|case|catch|end|fun|if|of|receive|try|when)\b/,
-	'number': [
-		/\$\\?./,
-		/\b\d+#[a-z0-9]+/i,
-		/(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?/i
-	],
-	'function': /\b[a-z][\w@]*(?=\()/,
-	'variable': {
-		// Look-behind is used to prevent wrong highlighting of atoms containing "@"
-		pattern: /(^|[^@])(?:\b|\?)[A-Z_][\w@]*/,
-		lookbehind: true
-	},
-	'operator': [
-		/[=\/<>:]=|=[:\/]=|\+\+?|--?|[=*\/!]|\b(?:and|andalso|band|bnot|bor|bsl|bsr|bxor|div|not|or|orelse|rem|xor)\b/,
-		{
-			// We don't want to match <<
-			pattern: /(^|[^<])<(?!<)/,
-			lookbehind: true
-		},
-		{
-			// We don't want to match >>
-			pattern: /(^|[^>])>(?!>)/,
-			lookbehind: true
-		}
-	],
-	'atom': /\b[a-z][\w@]*/,
-	'punctuation': /[()[\]{}:;,.#|]|<<|>>/
-
-};