♻️ 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/@babel/helper-string-parser/package.json

@@ -1,31 +0,0 @@
-{
-  "name": "@babel/helper-string-parser",
-  "version": "7.27.1",
-  "description": "A utility package to parse strings",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/babel/babel.git",
-    "directory": "packages/babel-helper-string-parser"
-  },
-  "homepage": "https://babel.dev/docs/en/next/babel-helper-string-parser",
-  "license": "MIT",
-  "publishConfig": {
-    "access": "public"
-  },
-  "main": "./lib/index.js",
-  "devDependencies": {
-    "charcodes": "^0.2.0"
-  },
-  "engines": {
-    "node": ">=6.9.0"
-  },
-  "author": "The Babel Team (https://babel.dev/team)",
-  "exports": {
-    ".": {
-      "types": "./lib/index.d.ts",
-      "default": "./lib/index.js"
-    },
-    "./package.json": "./package.json"
-  },
-  "type": "commonjs"
-}