♻️ 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/mdast-util-to-hast/lib/handlers/html.d.ts

@@ -1,23 +0,0 @@
-/**
- * @import {Element} from 'hast'
- * @import {Html} from 'mdast'
- * @import {State} from '../state.js'
- * @import {Raw} from '../../index.js'
- */
-/**
- * Turn an mdast `html` node into hast (`raw` node in dangerous mode, otherwise
- * nothing).
- *
- * @param {State} state
- *   Info passed around.
- * @param {Html} node
- *   mdast node.
- * @returns {Element | Raw | undefined}
- *   hast node.
- */
-export function html(state: State, node: Html): Element | Raw | undefined;
-import type { State } from '../state.js';
-import type { Html } from 'mdast';
-import type { Element } from 'hast';
-import type { Raw } from '../../index.js';
-//# sourceMappingURL=html.d.ts.map