♻️ 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-astro/metadata.js

@@ -1,21 +0,0 @@
-function getAstroMetadata(modInfo) {
-  if (modInfo.meta?.astro) {
-    return modInfo.meta.astro;
-  }
-  return void 0;
-}
-function createDefaultAstroMetadata() {
-  return {
-    hydratedComponents: [],
-    clientOnlyComponents: [],
-    serverComponents: [],
-    scripts: [],
-    propagation: "none",
-    containsHead: false,
-    pageOptions: {}
-  };
-}
-export {
-  createDefaultAstroMetadata,
-  getAstroMetadata
-};