♻️ 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/aria-query/lib/etc/roles/ariaGraphicsRoles.js

@@ -1,12 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = void 0;
-var _graphicsDocumentRole = _interopRequireDefault(require("./graphics/graphicsDocumentRole"));
-var _graphicsObjectRole = _interopRequireDefault(require("./graphics/graphicsObjectRole"));
-var _graphicsSymbolRole = _interopRequireDefault(require("./graphics/graphicsSymbolRole"));
-function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
-var ariaGraphicsRoles = [['graphics-document', _graphicsDocumentRole.default], ['graphics-object', _graphicsObjectRole.default], ['graphics-symbol', _graphicsSymbolRole.default]];
-var _default = exports.default = ariaGraphicsRoles;