♻️ 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/astro/dist/vite-plugin-html/index.js

@@ -1,16 +0,0 @@
-import { transform } from "./transform/index.js";
-function html() {
-  return {
-    name: "astro:html",
-    options(options) {
-      options.plugins = options.plugins?.filter((p) => p.name !== "vite:build-html");
-    },
-    async transform(source, id) {
-      if (!id.endsWith(".html")) return;
-      return await transform(source, id);
-    }
-  };
-}
-export {
-  html as default
-};