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/model/ProjectQuotation.java

@@ -1,9 +1,12 @@
 package com.ecep.contract.model;
 
 import java.time.LocalDateTime;
+import java.util.Objects;
 
 import org.hibernate.annotations.ColumnDefault;
 
+import com.ecep.contract.util.HibernateProxyUtils;
+
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.FetchType;
@@ -108,4 +111,24 @@ public class ProjectQuotation implements IdentityEntity, ProjectBasedEntity {
     @ToString.Exclude
     private CompanyCustomerEvaluationFormFile evaluationFile;
 
+    @Override
+    public boolean equals(Object object) {
+         if (this == object) {
+            return true;
+        }
+        if (object == null) {
+            return false;
+        }
+        if (HibernateProxyUtils.isNotEffectiveClassEquals(object, this)) {
+            return false;
+        }
+        ProjectQuotation that = (ProjectQuotation) object;
+        return getId() != null && Objects.equals(getId(), that.getId());
+    }
+
+    @Override
+    public final int hashCode() {
+        return HibernateProxyUtils.hashCode(this);
+    }
+
 }