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/syntax/config/lexer.cjs

@@ -0,0 +1,14 @@
+'use strict';
+
+const genericConst = require('../../lexer/generic-const.cjs');
+const data = require('../../data.cjs');
+const index = require('../node/index.cjs');
+
+const lexerConfig = {
+    generic: true,
+    cssWideKeywords: genericConst.cssWideKeywords,
+    ...data,
+    node: index
+};
+
+module.exports = lexerConfig;