fix: directory tree

frontend/app/components/platform/ScriptExplorer.tsx

@@ -69,6 +69,10 @@ export function ScriptExplorer({
           );
 
     const byOwner = new Map<string, ScriptItem[]>();
+    // 当前用户的目录树即使没有脚本也要渲染，所以预置空组。
+    if (user?.user_id) {
+      byOwner.set(user.user_id, []);
+    }
     for (const item of visibleScripts) {
       const list = byOwner.get(item.owner_user_id) ?? [];
       list.push(item);
@@ -201,7 +205,7 @@ export function ScriptExplorer({
                 />
               );
             })}
-            {filteredScripts.length === 0 && (
+            {filteredScripts.length === 0 && directories.length === 0 && (
               <div className="tree-empty">
                 <span className="tree-empty__icon">
                   <Icon name="script" size={24} />