♻️ 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/rehype-parse/package.json

@@ -1,49 +0,0 @@
-{
-  "name": "rehype-parse",
-  "version": "9.0.1",
-  "description": "rehype plugin to parse HTML",
-  "license": "MIT",
-  "keywords": [
-    "abstract",
-    "ast",
-    "html",
-    "parse",
-    "plugin",
-    "rehype",
-    "rehype-plugin",
-    "syntax",
-    "tree",
-    "unified"
-  ],
-  "homepage": "https://github.com/rehypejs/rehype",
-  "repository": "https://github.com/rehypejs/rehype/tree/main/packages/rehype-parse",
-  "bugs": "https://github.com/rehypejs/rehype/issues",
-  "funding": {
-    "type": "opencollective",
-    "url": "https://opencollective.com/unified"
-  },
-  "author": "Titus Wormer <tituswormer@gmail.com> (https://wooorm.com)",
-  "contributors": [
-    "Titus Wormer <tituswormer@gmail.com> (https://wooorm.com)"
-  ],
-  "sideEffects": false,
-  "type": "module",
-  "exports": "./index.js",
-  "files": [
-    "lib/",
-    "index.d.ts",
-    "index.js"
-  ],
-  "dependencies": {
-    "@types/hast": "^3.0.0",
-    "hast-util-from-html": "^2.0.0",
-    "unified": "^11.0.0"
-  },
-  "scripts": {},
-  "typeCoverage": {
-    "atLeast": 100,
-    "detail": true,
-    "strict": true,
-    "ignoreCatch": true
-  }
-}