♻️ 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/elements/index.js

@@ -1,13 +0,0 @@
-'use strict';
-
-module.exports = {
-  TextPrompt: require('./text'),
-  SelectPrompt: require('./select'),
-  TogglePrompt: require('./toggle'),
-  DatePrompt: require('./date'),
-  NumberPrompt: require('./number'),
-  MultiselectPrompt: require('./multiselect'),
-  AutocompletePrompt: require('./autocomplete'),
-  AutocompleteMultiselectPrompt: require('./autocompleteMultiselect'),
-  ConfirmPrompt: require('./confirm')
-};