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/diff/libesm/convert/xml.d.ts

@@ -0,0 +1,6 @@
+import type { ChangeObject } from '../types.js';
+/**
+ * converts a list of change objects to a serialized XML format
+ */
+export declare function convertChangesToXML(changes: ChangeObject<string>[]): string;
+//# sourceMappingURL=xml.d.ts.map