REPORT-92325 修复环境初始化之前调用远程设计接口导致NPE问题

designer-base/src/main/java/com/fr/design/mainframe/vcs/common/VcsHelper.java

@@ -68,7 +68,11 @@ public class VcsHelper implements JTemplateActionListener {
     }
 
     private VcsHelper() {
-        legacyMode = WorkContext.getCurrent().get(VcsOperator.class).isLegacyMode();
+        VcsOperator op = WorkContext.getCurrent().get(VcsOperator.class);
+        // 开了设计器启动页面时一开始取不到VcsOperator，通过下面的切换环境事件再取，这边判断下
+        if (op != null) {
+            legacyMode = op.isLegacyMode();
+        }
         EventDispatcher.listen(WorkspaceEvent.AfterSwitch, new Listener<Workspace>() {
             @Override
             public void on(Event event, Workspace param) {