enhance ChangeLinkAccount functionality

- Added LoginTypeToBindType function to map login types to binding types.
- Updated ChangeLinkAccount method to handle account linking and unbinding with appropriate error handling.
- Ensured proper messaging for success and failure cases during account changes.
- Cleaned temporary SNS information after account change attempts.

sdk-intergration/Packages/tysdk/Runtime/TYSdkFacade.cs

@@ -364,6 +364,43 @@ namespace tysdk
             UnityBridgeFunc.CleanLinkTmpSnsInfo();
         }
 
+        public async Task<ChangeLinkResult> ChangeLinkAccount(EAccoutType accoutType, int oldUserId, int newUserId)
+        {
+            var task = TYSDKCallbackManager.Instance.RegisterCallback<ChangeLinkResult>(TimeSpan.FromSeconds(30));
+            UnityBridgeFunc.ChangeLinkAccount(accoutType, oldUserId, newUserId);
+            try
+            {
+                var result = await task;
+                if (result.code == 0)
+                {
+                    _accountInfo.AddLinkedAccount(accoutType);
+                    _accountInfo.Save();
+                }
+                return result;
+            }
+            catch (Exception e)
+            {
+                Debug.LogWarning($"[TYSdkFacade] Change link account failed: {e}");
+                return new ChangeLinkResult() { code = 1 };
+            }
+            finally
+            {
+                CleanLinkTempSnSInfo();
+            }
+        }
+
+        public void ChangeLinkAccountResult(string message)
+        {
+            JObject data = JObject.Parse(message);
+            var result = new ChangeLinkResult()
+            {
+                code = (int)data["code"],
+                userId = (int)data["userId"],
+                msg = (string)data["msg"]
+            };
+            TYSDKCallbackManager.Instance.TryTriggerCallback(result);
+        }
+
         /// <summary>
         /// 检查是否已经绑定
         /// <returns>