fix(website): 防止同一租户重复创建站点，设置默认状态

- CmsWebsiteController中新增校验，若当前租户已有站点则拒绝新增
- 避免并发和重复请求导致多条孤儿记录产生
- CmsWebsiteServiceImpl中设置默认运行状态，防止状态字段为空显示异常
- 保持后端枚举status与前端展示running状态一致
- 调用方仍可覆盖默认状态值

src/main/java/com/gxwebsoft/cms/controller/CmsWebsiteController.java

@@ -109,6 +109,18 @@ public class CmsWebsiteController extends BaseController {
     // 记录当前登录用户id
     User loginUser = getLoginUser();
     if (loginUser != null) {
+      // 防重复建站：同一租户已存在站点时拒绝新增，
+      // 避免并发请求/重复点击建出多条记录（getSiteInfo 仅取 limit 1，多余记录会成为孤儿数据）
+      if (ObjectUtil.isNotEmpty(loginUser.getTenantId())) {
+        long exist = cmsWebsiteService.count(
+            new LambdaQueryWrapper<CmsWebsite>()
+                .eq(CmsWebsite::getTenantId, loginUser.getTenantId())
+                .eq(CmsWebsite::getDeleted, 0)
+        );
+        if (exist > 0) {
+          return fail("当前租户已存在站点，请勿重复创建");
+        }
+      }
       cmsWebsite.setLoginUser(loginUser);
       return success("创建成功", cmsWebsiteService.create(cmsWebsite));
     }

src/main/java/com/gxwebsoft/cms/service/impl/CmsWebsiteServiceImpl.java

@@ -193,6 +193,15 @@ public class CmsWebsiteServiceImpl extends ServiceImpl<CmsWebsiteMapper, CmsWebs
     website.setTemplateId(loginUser.getTemplateId());
     website.setCompanyId(loginUser.getCompanyId());
 
+    // 默认运行中：status（后台枚举）与 running（getSiteInfo 状态展示用）保持一致，
+    // 避免公开站读取到空值显示「状态未知」；调用方可覆盖
+    if (website.getStatus() == null) {
+      website.setStatus(1);
+    }
+    if (website.getRunning() == null) {
+      website.setRunning(1);
+    }
+
     // 初始化数据
     if(save(website)){
       // 插入网站设置记录