♻️ 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/prompts/dist/util/lines.js

@@ -1,14 +0,0 @@
-'use strict';
-
-const strip = require('./strip');
-/**
- * @param {string} msg
- * @param {number} perLine
- */
-
-
-module.exports = function (msg, perLine) {
-  let lines = String(strip(msg) || '').split(/\r?\n/);
-  if (!perLine) return lines.length;
-  return lines.map(l => Math.ceil(l.length / perLine)).reduce((a, b) => a + b);
-};