fix: multi owner

frontend/app/features/platform/WorkspaceTree.tsx

@@ -1,4 +1,4 @@
-import { type MouseEvent as ReactMouseEvent } from "react";
+import { type MouseEvent as ReactMouseEvent, useEffect } from "react";
 
 import Icon from "../../components/common/Icon";
 import type {
@@ -23,12 +23,14 @@ type WorkspaceTreeProps = {
     target: WorkspaceTreeTarget,
   ) => void;
   readOnly?: boolean;
+  // 唯一标识此 group（通常 `__group__<owner_user_id>`），让多个 owner 的 group 各自独立展开。
+  groupKey: string;
   expandedPaths: Set<string>;
   onToggle: (path: string) => void;
   loadingChildrenPaths: Set<string>;
 };
 
-type WorkspaceTreeItemsProps = Omit<WorkspaceTreeProps, "title" | "readOnly"> & {
+type WorkspaceTreeItemsProps = Omit<WorkspaceTreeProps, "title" | "readOnly" | "groupKey"> & {
   path: string;
   depth: number;
 };
@@ -65,19 +67,27 @@ export function WorkspaceTreeGroup({
   onSelect,
   onContextMenu,
   readOnly = false,
+  groupKey,
   expandedPaths,
   onToggle,
   loadingChildrenPaths,
 }: WorkspaceTreeProps) {
-  const open = expandedPaths.has("");
-  const childrenLoading = loadingChildrenPaths.has("");
+  const open = expandedPaths.has(groupKey);
+  // 首次挂载自动展开（保留原本 useState(true) 的默认展开行为）。
+  // toggleExpanded 内识别 `__group__` 前缀，不会触发 loadChildren。
+  useEffect(() => {
+    if (!expandedPaths.has(groupKey)) {
+      void onToggle(groupKey);
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [groupKey]);
   return (
     <div className="tree-group">
       <button
         className={`tree-group__title${open ? " is-open" : ""}`}
         type="button"
         aria-expanded={open}
-        onClick={() => onToggle("")}
+        onClick={() => onToggle(groupKey)}
         onContextMenu={onContextMenu
           ? (event) => onContextMenu(event, { kind: "root", path: "" })
           : undefined}
@@ -86,7 +96,6 @@ export function WorkspaceTreeGroup({
         <Icon name="folder" size={17} />
         <span>{title}</span>
         <em>{scripts.length}</em>
-        {childrenLoading && <span className="loading-spinner" />}
       </button>
       {open && (
         <div className="tree-group__items">