!90 czh-20260724-IM模块统一使用fastjson2

* czh-20260724-IM模块统一使用fastjson2
* czh-20260724-添加bundle到gitignore
* czh-20260724-增补意见即时通推送和回显功能

jeecg-boot-module/jeecg-module-im/src/main/java/org/jeecg/modules/ksim/client/KsimApiClient.java

@@ -1,7 +1,7 @@
 package org.jeecg.modules.ksim.client;
 
-import com.alibaba.fastjson.JSON;
-import com.alibaba.fastjson.JSONObject;
+import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson2.JSONObject;
 import lombok.extern.slf4j.Slf4j;
 import org.jeecg.common.util.RestUtil;
 import org.jeecg.modules.ksim.config.KsimProperties;

jeecg-boot-module/jeecg-module-im/src/main/java/org/jeecg/modules/ksim/dto/KsimApiResult.java

@@ -1,6 +1,6 @@
 package org.jeecg.modules.ksim.dto;
 
-import com.alibaba.fastjson.annotation.JSONField;
+import com.alibaba.fastjson2.annotation.JSONField;
 
 /**
  * 即时通 API 通用响应体

jeecg-boot-module/jeecg-module-im/src/main/java/org/jeecg/modules/ksim/service/impl/KsimMessageServiceImpl.java

@@ -1,6 +1,6 @@
 package org.jeecg.modules.ksim.service.impl;
 
-import com.alibaba.fastjson.JSONObject;
+import com.alibaba.fastjson2.JSONObject;
 import lombok.extern.slf4j.Slf4j;
 import org.jeecg.common.api.vo.Result;
 import org.jeecg.modules.ksim.client.KsimApiClient;

jeecg-boot-module/jeecg-module-im/src/main/java/org/jeecg/modules/ksim/token/KsimTokenManager.java

@@ -1,6 +1,6 @@
 package org.jeecg.modules.ksim.token;
 
-import com.alibaba.fastjson.JSONObject;
+import com.alibaba.fastjson2.JSONObject;
 import lombok.extern.slf4j.Slf4j;
 import org.jeecg.common.exception.JeecgBootException;
 import org.jeecg.modules.ksim.client.KsimApiClient;