fix(import): 修复Excel导入时企业名称字段处理问题

- 移除CreditCompetitor、CreditCustomer、CreditExternal、CreditRiskRelation、CreditSupplier和CreditUser实体中companyName字段的@TableField(exist = false)注解
- 在各控制器的convertImportParamToEntity方法中添加CreditCompany::setCompanyName方法引用
- 从companyId获取对应的企业名称并设置到fixedCompanyName变量中
- 更新导入逻辑中的注释说明，明确name和companyName字段的不同用途
- 在导入过程中当companyName为空且存在固定公司名称时进行赋值处理

src/main/java/com/gxwebsoft/credit/controller/CreditCompetitorController.java

@@ -6,6 +6,7 @@ import com.gxwebsoft.common.core.web.BaseController;
 import com.gxwebsoft.common.core.web.BatchParam;
 import com.gxwebsoft.common.core.web.PageResult;
 import com.gxwebsoft.common.system.entity.User;
+import com.gxwebsoft.credit.entity.CreditCompany;
 import com.gxwebsoft.credit.entity.CreditCompetitor;
 import com.gxwebsoft.credit.param.CreditCompetitorImportParam;
 import com.gxwebsoft.credit.param.CreditCompetitorParam;
@@ -170,6 +171,7 @@ public class CreditCompetitorController extends BaseController {
             CreditCompetitor::getName,
             CreditCompetitor::getCompanyId,
             CreditCompetitor::setCompanyId,
+            CreditCompetitor::setCompanyName,
             CreditCompetitor::getHasData,
             CreditCompetitor::setHasData,
             CreditCompetitor::getTenantId,
@@ -212,6 +214,11 @@ public class CreditCompetitorController extends BaseController {
             Integer currentTenantId = loginUser != null ? loginUser.getTenantId() : null;
             Map<String, String> urlByName = ExcelImportSupport.readUrlByKey(
                 file, usedSheetIndex, usedTitleRows, usedHeadRows, "企业名称");
+            String fixedCompanyName = null;
+            if (companyId != null && companyId > 0) {
+                CreditCompany fixedCompany = creditCompanyService.getById(companyId);
+                fixedCompanyName = fixedCompany != null ? fixedCompany.getName() : null;
+            }
 
             final int chunkSize = 500;
             final int mpBatchSize = 500;
@@ -222,7 +229,7 @@ public class CreditCompetitorController extends BaseController {
                 CreditCompetitorImportParam param = list.get(i);
                 try {
                     CreditCompetitor item = convertImportParamToEntity(param);
-                    // name 才是持久化字段；companyName 为关联查询的临时字段（exist=false），导入时不应使用。
+                    // name 为竞争对手企业名称；companyName 为主体企业名称。
                     if (!ImportHelper.isBlank(item.getName())) {
                         String link = urlByName.get(item.getName().trim());
                         if (!ImportHelper.isBlank(link)) {
@@ -232,6 +239,9 @@ public class CreditCompetitorController extends BaseController {
 
                     if (item.getCompanyId() == null && companyId != null) {
                         item.setCompanyId(companyId);
+                        if (ImportHelper.isBlank(item.getCompanyName()) && !ImportHelper.isBlank(fixedCompanyName)) {
+                            item.setCompanyName(fixedCompanyName);
+                        }
                     }
                     if (item.getUserId() == null && currentUserId != null) {
                         item.setUserId(currentUserId);