fix(net): harden wire lifecycle races

cocoscreator_projects/framework-tests/helpers/fake-transport.ts

@@ -11,10 +11,16 @@ export class FakeTransport implements Transport {
   private closeCb?: () => void;
   private pending: Array<() => void> = [];
   private closed = false;
+  private connectFailure: unknown = null;
 
   connect(url: string): void {
     this.connectCalls++;
     this.url = url;
+    if (this.connectFailure !== null) {
+      const error = this.connectFailure;
+      this.connectFailure = null;
+      throw error;
+    }
     this.pending.push(() => this.openCb?.());
   }
   send(frame: string): void { if (!this.closed) this.sent.push(frame); }
@@ -28,6 +34,9 @@ export class FakeTransport implements Transport {
   onMessage(cb: (f: string) => void): void { this.msgCb = cb; }
   onClose(cb: () => void): void { this.closeCb = cb; }
 
+  /** 测试侧：令下一次 connect 同步失败。 */
+  failNextConnect(error: unknown): void { this.connectFailure = error; }
+
   /** 测试侧：模拟服务器推一帧给客户端。 */
   serverPush(frame: string): void { this.pending.push(() => this.msgCb?.(frame)); }