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/css-tree/cjs/generator/index.cjs

@@ -0,0 +1,8 @@
+'use strict';
+
+const create = require('./create.cjs');
+const generator = require('../syntax/config/generator.cjs');
+
+const index = create.createGenerator(generator);
+
+module.exports = index;