fix(cms): 修复网站状态显示逻辑

- 增加空值检查，避免 NullPointerException
- 添加默认状态处理：当 running为 null 时，设置为"状态未知"
- 优化代码结构，减少重复代码

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

@@ -294,28 +294,37 @@ public class CmsWebsiteController extends BaseController {
   }
 
   private void setWebsiteStatus(CmsWebsite website) {
-    if (!website.getRunning().equals(1)) {
+    // 空值检查，避免NullPointerException
+    Integer running = website.getRunning();
+    if (running == null) {
+      // 默认状态：未开通
+      website.setStatusIcon("error");
+      website.setStatusText("状态未知");
+      return;
+    }
+    
+    if (!running.equals(1)) {
       // 未开通
-      if (website.getRunning().equals(0)) {
+      if (running.equals(0)) {
         website.setStatusIcon("error");
         website.setStatusText("该站点未开通");
       }
       // 维护中
-      if (website.getRunning().equals(2)) {
+      if (running.equals(2)) {
         website.setStatusIcon("warning");
       }
       // 已关闭
-      if (website.getRunning().equals(3)) {
+      if (running.equals(3)) {
         website.setStatusIcon("error");
         website.setStatusText("已关闭");
       }
       // 已欠费停机
-      if (website.getRunning().equals(4)) {
+      if (running.equals(4)) {
         website.setStatusIcon("error");
         website.setStatusText("已欠费停机");
       }
       // 违规关停
-      if (website.getRunning().equals(5)) {
+      if (running.equals(5)) {
         website.setStatusIcon("error");
         website.setStatusText("违规关停");
       }