♻️ 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
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✅ 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/code.d.ts

@@ -1,20 +0,0 @@
-/**
- * @import {Element, Properties} from 'hast'
- * @import {Code} from 'mdast'
- * @import {State} from '../state.js'
- */
-/**
- * Turn an mdast `code` node into hast.
- *
- * @param {State} state
- *   Info passed around.
- * @param {Code} node
- *   mdast node.
- * @returns {Element}
- *   hast node.
- */
-export function code(state: State, node: Code): Element;
-import type { State } from '../state.js';
-import type { Code } from 'mdast';
-import type { Element } from 'hast';
-//# sourceMappingURL=code.d.ts.map