♻️ 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-gettext.js

@@ -1,43 +0,0 @@
-Prism.languages.gettext = {
-	'comment': [
-		{
-			pattern: /# .*/,
-			greedy: true,
-			alias: 'translator-comment'
-		},
-		{
-			pattern: /#\..*/,
-			greedy: true,
-			alias: 'extracted-comment'
-		},
-		{
-			pattern: /#:.*/,
-			greedy: true,
-			alias: 'reference-comment'
-		},
-		{
-			pattern: /#,.*/,
-			greedy: true,
-			alias: 'flag-comment'
-		},
-		{
-			pattern: /#\|.*/,
-			greedy: true,
-			alias: 'previously-untranslated-comment'
-		},
-		{
-			pattern: /#.*/,
-			greedy: true
-		},
-	],
-	'string': {
-		pattern: /(^|[^\\])"(?:[^"\\]|\\.)*"/,
-		lookbehind: true,
-		greedy: true
-	},
-	'keyword': /^msg(?:ctxt|id|id_plural|str)\b/m,
-	'number': /\b\d+\b/,
-	'punctuation': /[\[\]]/
-};
-
-Prism.languages.po = Prism.languages.gettext;