feat: 添加日志配置和Logback依赖

refactor: 重构实体类equals和hashCode方法

fix: 修复WebSocketService消息发送逻辑

style: 格式化代码和优化导入

docs: 更新JacksonConfig日期序列化格式

test: 添加CompanyFilePathTableCell测试类

chore: 清理无用代码和注释

common/src/main/java/com/ecep/contract/msg/SimpleMessage.java

@@ -19,7 +19,9 @@ public class SimpleMessage {
     private List<Object> arguments;
 
     public void setArguments(Object... arguments) {
-        this.parameterTypes = Arrays.stream(arguments).map(Object::getClass).map(Class::getName).collect(Collectors.toList());
+        this.parameterTypes = Arrays.stream(arguments)
+                .map(arg -> arg != null ? arg.getClass().getName() : null)
+                .collect(Collectors.toList());
         this.arguments = Arrays.asList(arguments);
     }