♻️ 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/prompts/lib/util/figures.js

@@ -1,33 +0,0 @@
-'use strict';	
-
- const main = {
-  arrowUp: '↑',
-  arrowDown: '↓',
-  arrowLeft: '←',
-  arrowRight: '→',
-  radioOn: '◉',
-  radioOff: '◯',
-  tick: '✔',	
-  cross: '✖',	
-  ellipsis: '…',	
-  pointerSmall: '›',	
-  line: '─',	
-  pointer: '❯'	
-};	
-const win = {
-  arrowUp: main.arrowUp,
-  arrowDown: main.arrowDown,
-  arrowLeft: main.arrowLeft,
-  arrowRight: main.arrowRight,
-  radioOn: '(*)',
-  radioOff: '( )',	
-  tick: '√',	
-  cross: '×',	
-  ellipsis: '...',	
-  pointerSmall: '»',	
-  line: '─',	
-  pointer: '>'	
-};	
-const figures = process.platform === 'win32' ? win : main;	
-
- module.exports = figures;