refactor(mq): 优化RabbitMQ消息转换器配置

- 移除自定义ObjectMapper实例，改用注入的@Primary ObjectMapper
- 删除对JavaTimeModule和序列化配置的显式设置
- 简化messageConverter方法实现，提高配置复用性
- 保持消息转换功能一致性和代码简洁性

src/main/java/com/gxwebsoft/common/mq/config/RabbitMQConfig.java

@@ -1,9 +1,6 @@
 package com.gxwebsoft.common.mq.config;
 
-import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.SerializationFeature;
-import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import org.springframework.amqp.core.*;
 import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
 import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
@@ -68,13 +65,7 @@ public class RabbitMQConfig {
     // ==================== Message Converter ====================
 
     @Bean
-    public MessageConverter messageConverter() {
-        // 使用JacksonConfig中定义的@Primary objectMapper bean
-        ObjectMapper objectMapper = new ObjectMapper();
-        objectMapper.registerModule(new JavaTimeModule());
-        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
-        objectMapper.disable(SerializationFeature.WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS);
-        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+    public MessageConverter messageConverter(ObjectMapper objectMapper) {
         return new Jackson2JsonMessageConverter(objectMapper);
     }