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/acorn/bin/acorn

@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+"use strict"
+
+require("../dist/bin.js")