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/crossws/dist/adapters/bun.d.ts

@@ -0,0 +1,39 @@
+import { WebSocketHandler, ServerWebSocket, Server } from 'bun';
+import { Adapter, AdapterInstance, Peer, AdapterOptions } from '../index.js';
+import '../shared/crossws.BQXMA5bH.js';
+
+interface BunAdapter extends AdapterInstance {
+    websocket: WebSocketHandler<ContextData>;
+    handleUpgrade(req: Request, server: Server): Promise<Response | undefined>;
+}
+interface BunOptions extends AdapterOptions {
+}
+type ContextData = {
+    peer?: BunPeer;
+    request: Request;
+    server?: Server;
+    context: Peer["context"];
+};
+declare const bunAdapter: Adapter<BunAdapter, BunOptions>;
+
+declare class BunPeer extends Peer<{
+    ws: ServerWebSocket<ContextData>;
+    request: Request;
+    peers: Set<BunPeer>;
+}> {
+    get remoteAddress(): string;
+    get context(): Peer["context"];
+    send(data: unknown, options?: {
+        compress?: boolean;
+    }): number;
+    publish(topic: string, data: unknown, options?: {
+        compress?: boolean;
+    }): number;
+    subscribe(topic: string): void;
+    unsubscribe(topic: string): void;
+    close(code?: number, reason?: string): void;
+    terminate(): void;
+}
+
+export { bunAdapter as default };
+export type { BunAdapter, BunOptions };