fix: 修复绑定用户时返回值未包含用户ID的问题

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/Fuwuhao/FuwuhaoManager.cs

@@ -240,7 +240,7 @@ public class FuwuhaoManager : DomainService
 
                 //说明没有绑定过，直接绑定
                 await _userRepository.InsertAsync(new AiUserExtraInfoEntity(bindUserId.Value, openId));
-                return (SceneResultEnum.Bind,null);
+                return (SceneResultEnum.Bind,bindUserId);
                 break;
             default:
                 throw new ArgumentOutOfRangeException(nameof(sceneType), sceneType, null);