♻️ 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/dlv/package.json

@@ -1,30 +0,0 @@
-{
-  "name": "dlv",
-  "version": "1.1.3",
-  "description": "Safely get a dot-notated property within an object.",
-  "main": "dist/dlv.js",
-  "browser": "dist/dlv.umd.js",
-  "module": "dist/dlv.es.js",
-  "scripts": {
-    "dev": "microbundle watch",
-    "build": "microbundle",
-    "prepublish": "npm run build",
-    "test": "node test",
-    "release": "npm run build && npm test && git commit -am $npm_package_version && git tag $npm_package_version && git push && git push --tags && npm publish"
-  },
-  "keywords": [
-    "delve",
-    "dot notation",
-    "dot"
-  ],
-  "files": [
-    "index.js",
-    "dist"
-  ],
-  "author": "Jason Miller <jason@developit.ca> (http://jasonformat.com)",
-  "repository": "developit/dlv",
-  "license": "MIT",
-  "devDependencies": {
-    "microbundle": "^0.11.0"
-  }
-}