refactor: 重构WebSocket服务及相关实体类

重构WebSocket服务名称从WebSocketService改为WebSocketClientService，并实现Serializable接口
添加WebSocket常量定义和消息处理实现
优化实体类equals和hashCode方法
修复控制器路径和日志配置
添加查询服务和任务接口方法

common/src/main/java/com/ecep/contract/model/SalesOrderInvoice.java

@@ -1,4 +1,44 @@
 package com.ecep.contract.model;
 
-public class SalesOrderInvoice {
+import com.ecep.contract.util.HibernateProxyUtils;
+import jakarta.persistence.*;
+import lombok.*;
+import org.hibernate.proxy.HibernateProxy;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+/**
+ * 销售订单发票
+ */
+@Getter
+@Setter
+@RequiredArgsConstructor
+@Entity
+@Table(name = "SALES_ORDER_INVOICE", schema = "supplier_ms")
+@ToString
+public class SalesOrderInvoice implements IdentityEntity, Serializable {
+    private static final long serialVersionUID = 1L;
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "ID", nullable = false)
+    private Integer id;
+
+    @Override
+    public final boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null) return false;
+        if (HibernateProxyUtils.isNotEffectiveClassEquals(o, this)) {
+            return false;
+        }
+        SalesOrderInvoice that = (SalesOrderInvoice) o;
+        return getId() != null && Objects.equals(getId(), that.getId());
+    }
+
+    @Override
+    public final int hashCode() {
+        return HibernateProxyUtils.hashCode(this);
+    }
+
+
 }