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/lib/syntax/atrule/font-face.js

@@ -0,0 +1,8 @@
+export default {
+    parse: {
+        prelude: null,
+        block() {
+            return this.Block(true);
+        }
+    }
+};