♻️ 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/astro/dist/assets/utils/imageKind.js

@@ -1,18 +0,0 @@
-function isESMImportedImage(src) {
-  return typeof src === "object" || typeof src === "function" && "src" in src;
-}
-function isRemoteImage(src) {
-  return typeof src === "string";
-}
-async function resolveSrc(src) {
-  if (typeof src === "object" && "then" in src) {
-    const resource = await src;
-    return resource.default ?? resource;
-  }
-  return src;
-}
-export {
-  isESMImportedImage,
-  isRemoteImage,
-  resolveSrc
-};