♻️ 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/hast-util-to-html/index.d.ts

@@ -1,6 +0,0 @@
-export { toHtml } from "./lib/index.js";
-export type CharacterReferences = import("./lib/index.js").CharacterReferences;
-export type Options = import("./lib/index.js").Options;
-export type Quote = import("./lib/index.js").Quote;
-export type Space = import("./lib/index.js").Space;
-//# sourceMappingURL=index.d.ts.map