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/astro/dist/events/toolbar.js

@@ -0,0 +1,10 @@
+const EVENT_TOOLBAR_APP_TOGGLED = "ASTRO_TOOLBAR_APP_TOGGLED";
+function eventAppToggled(options) {
+  const payload = {
+    app: options.appName
+  };
+  return [{ eventName: EVENT_TOOLBAR_APP_TOGGLED, payload }];
+}
+export {
+  eventAppToggled
+};