♻️ 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/@babel/parser/bin/babel-parser.js

@@ -1,15 +0,0 @@
-#!/usr/bin/env node
-/* eslint-disable no-var, unicorn/prefer-node-protocol */
-
-var parser = require("..");
-var fs = require("fs");
-
-var filename = process.argv[2];
-if (!filename) {
-  console.error("no filename specified");
-} else {
-  var file = fs.readFileSync(filename, "utf8");
-  var ast = parser.parse(file);
-
-  console.log(JSON.stringify(ast, null, "  "));
-}