♻️ 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/dist/dateparts/index.js

@@ -1,13 +0,0 @@
-'use strict';
-
-module.exports = {
-  DatePart: require('./datepart'),
-  Meridiem: require('./meridiem'),
-  Day: require('./day'),
-  Hours: require('./hours'),
-  Milliseconds: require('./milliseconds'),
-  Minutes: require('./minutes'),
-  Month: require('./month'),
-  Seconds: require('./seconds'),
-  Year: require('./year')
-};