feat: 实现基于JSON的登录API和安全认证

refactor: 重构登录逻辑和会话管理

fix: 修复会话ID类型和WebSocket连接问题

build: 更新项目版本号和添加Servlet API依赖

style: 清理无用导入和注释代码

client/src/main/resources/ui/contact.fxml

@@ -20,7 +20,7 @@
 <?import javafx.scene.paint.Color?>
 <?import javafx.scene.text.Font?>
 
-<BorderPane fx:id="root" maxHeight="900" maxWidth="1024" minHeight="300" minWidth="200" prefHeight="600.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/22" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ecep.contract.manager.ds.company.controller.contact.CompanyContactWindowController">
+<BorderPane fx:id="root" maxHeight="900" maxWidth="1024" minHeight="300" minWidth="200" prefHeight="600.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/22" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.ecep.contract.ds.company.controller.contact.CompanyContactWindowController">
     <center>
         <TabPane fx:id="tabPane" tabClosingPolicy="UNAVAILABLE" tabMaxWidth="100.0" tabMinWidth="40.0">
             <tabs>
@@ -114,3 +114,4 @@
         </HBox>
     </bottom>
 </BorderPane>
+