♻️ 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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✅ Ready for Easypanel deployment (no root dir needed)

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

dealplustech-astro/node_modules/trough/index.js

@@ -1,9 +0,0 @@
-/**
- * @typedef {import('./lib/index.js').Callback} Callback
- * @typedef {import('./lib/index.js').Middleware} Middleware
- * @typedef {import('./lib/index.js').Pipeline} Pipeline
- * @typedef {import('./lib/index.js').Run} Run
- * @typedef {import('./lib/index.js').Use} Use
- */
-
-export {trough, wrap} from './lib/index.js'