refactor: 移除Hibernate依赖并重构代理对象初始化检查逻辑

feat(controller): 新增多个任务类用于合同和客户相关操作
feat(service): 新增ProxyUtils工具类替代Hibernate.isInitialized检查
refactor(controller): 重构多个控制器和皮肤类，使用ProxyUtils替代Hibernate
refactor(service): 重构服务类，移除Hibernate依赖并优化方法实现
fix(controller): 修复表格单元格初始化逻辑，确保代理对象正确加载
chore: 更新项目版本号至0.0.58-SNAPSHOT
docs: 添加MyProperties类用于管理下载路径配置

client/src/main/java/com/ecep/contract/MyProperties.java

@@ -0,0 +1,35 @@
+package com.ecep.contract;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+
+import java.io.File;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+@Component
+@ConfigurationProperties(prefix = "my")
+public class MyProperties {
+    @Getter
+    @Setter
+    private String downloadsPath;
+
+
+    /**
+     * 尝试返回当前用户的下载文件夹
+     */
+    public File getDownloadDirectory() {
+        String downloadsPath = getDownloadsPath();
+        if (StringUtils.hasText(downloadsPath)) {
+            return new File(downloadsPath);
+        }
+
+        // 没有配置下载目录时，尝试使用默认设置
+        String home = System.getProperty("user.home");
+        Path path = Paths.get(home, "Downloads");
+        return path.toFile();
+    }
+}