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/rollup/dist/es/rollup.js

@@ -0,0 +1,17 @@
+/*
+  @license
+	Rollup.js v4.59.0
+	Sun, 22 Feb 2026 07:31:53 GMT - commit ae846957f109690a866cc3e4c073613c338d3476
+
+	https://github.com/rollup/rollup
+
+	Released under the MIT License.
+*/
+export { version as VERSION, defineConfig, rollup, watch } from './shared/node-entry.js';
+import './shared/parseAst.js';
+import '../native.js';
+import 'node:path';
+import 'path';
+import 'node:process';
+import 'node:perf_hooks';
+import 'node:fs/promises';