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/util/params.d.ts

@@ -0,0 +1,4 @@
+export declare function generateOptions(options: {
+    [key: string]: any;
+} | ((_: unknown) => void), defaults: any): object;
+//# sourceMappingURL=params.d.ts.map