refactor: Move Astro to root, use PORT env (default 80), allow all hosts

- Move Astro files from dealplustech-astro/ to project root
- Update Dockerfile: PORT environment variable (default 80)
- Add vite.config.ts with allowedHosts: true
- Matches nixpacks behavior for Easypanel deployment
- No hardcoded ports or domains

node_modules/@capsizecss/unpack/dist/index.d.mts

@@ -0,0 +1,2 @@
+import { a as fromBuffer, i as fromBlob, o as fromUrl, r as SupportedSubsets, s as supportedSubsets, t as Font } from "./shared-CnZ3qQtb.mjs";
+export { type Font, type SupportedSubsets, fromBlob, fromBuffer, fromUrl, supportedSubsets };