♻️ 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

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✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/astro/dist/assets/utils/queryParams.js

@@ -1,16 +0,0 @@
-function getOrigQueryParams(params) {
-  const width = params.get("origWidth");
-  const height = params.get("origHeight");
-  const format = params.get("origFormat");
-  if (!width || !height || !format) {
-    return void 0;
-  }
-  return {
-    width: parseInt(width),
-    height: parseInt(height),
-    format
-  };
-}
-export {
-  getOrigQueryParams
-};