feat(客户评估): 实现客户评估表单的搜索和显示功能

添加客户评估表单文件的搜索功能，支持按公司ID和搜索文本查询
新增CompanyCustomerEvaluationFormFileStringConverter用于文件显示转换
优化自动完成功能，支持自定义搜索逻辑
移除不必要的文件路径属性绑定
重构客户评估表单窗口控制器继承结构

client/src/main/java/com/ecep/contract/converter/CompanyCustomerEvaluationFormFileStringConverter.java

@@ -0,0 +1,71 @@
+package com.ecep.contract.converter;
+
+import java.io.File;
+
+import org.springframework.util.StringUtils;
+
+import com.ecep.contract.SpringApp;
+import com.ecep.contract.service.CompanyCustomerEvaluationFormFileService;
+import com.ecep.contract.service.CompanyCustomerFileService;
+import com.ecep.contract.vo.CompanyCustomerEvaluationFormFileVo;
+import com.ecep.contract.vo.CustomerFileVo;
+
+import javafx.util.StringConverter;
+
+/**
+ * CompanyCustomerEvaluationFormFileVo的StringConverter实现，用于JavaFX控件中的显示和转换
+ */
+public class CompanyCustomerEvaluationFormFileStringConverter
+        extends StringConverter<CompanyCustomerEvaluationFormFileVo> {
+    private final CompanyCustomerEvaluationFormFileService service;
+    private CompanyCustomerFileService customerFileService;
+
+    /**
+     * 构造函数
+     * 
+     * @param service CompanyCustomerEvaluationFormFileService实例
+     */
+    public CompanyCustomerEvaluationFormFileStringConverter(CompanyCustomerEvaluationFormFileService service) {
+        this.service = service;
+    }
+
+    private CompanyCustomerFileService getCustomerFileService() {
+        if (customerFileService == null) {
+            customerFileService = SpringApp.getBean(CompanyCustomerFileService.class);
+        }
+        return customerFileService;
+    }
+
+    /**
+     * 将CompanyCustomerEvaluationFormFileVo对象转换为字符串
+     * 
+     * @param formFile CompanyCustomerEvaluationFormFileVo对象
+     * @return 转换后的字符串
+     */
+    @Override
+    public String toString(CompanyCustomerEvaluationFormFileVo formFile) {
+        if (formFile == null || formFile.getCustomerFile() == null) {
+            return "";
+        }
+
+        CustomerFileVo customerFile = getCustomerFileService().findById(formFile.getCustomerFile());
+        if (customerFile == null || !StringUtils.hasText(customerFile.getFilePath())) {
+            return "#" + formFile.getCustomerFile();
+        }
+        File file = new File(customerFile.getFilePath());
+        return file.getName();
+    }
+
+    /**
+     * 将字符串转换为CompanyCustomerEvaluationFormFileVo对象
+     * 
+     * @param string 字符串
+     * @return 转换后的CompanyCustomerEvaluationFormFileVo对象
+     */
+    @Override
+    public CompanyCustomerEvaluationFormFileVo fromString(String string) {
+        // 由于文件名称可能不唯一，这里返回null
+        // 实际使用时应该通过ID或其他唯一标识来查找
+        return null;
+    }
+}