refactor: Replace useWorkspaceBreadcrumbs hook with resolveBreadcrumbs utility

frontend/src/viewer/logic/useDetailWorkspace.ts

@@ -2,11 +2,11 @@ import { useCallback, useEffect, useMemo } from 'react';
 import type { MutableRefObject } from 'react';
 import { resolveDocumentAssetUrl } from '../../lib/assets/AssetManager';
 import { useDetailPanel } from '../../app/useDetailPanel';
-import { DEFAULT_FOLDER_NAME } from '../../app/workspaceUtils';
 import type { DocumentInfoPanelProps } from '../components/DocumentInfoPanel';
 import type { EnsureAssetUrl, GetAsset } from '../../lib/assets/AssetManager';
 import type { Identifier } from '../../types/identifiers';
 import type { Document } from '../../types/documents';
+import { resolveBreadcrumbs } from '../../documents/logic/breadcrumbs';
 
 interface FolderNode {
   id: Identifier | 'root';
@@ -139,45 +139,7 @@ const useDetailWorkspace = ({
 
   const resolveFolderPath = useCallback(
     (folderId) => {
-      if (!folderId || folderId === 'root') {
-        return [];
-      }
-
-      const segments = [];
-      const visited = new Set();
-      let currentId = folderId;
-      let guard = 0;
-
-      while (currentId && guard < 32 && !visited.has(currentId)) {
-        guard += 1;
-        visited.add(currentId);
-
-        if (currentId === 'root') {
-          break;
-        }
-
-        const node = folderNodes.get(currentId);
-        if (!node) {
-          segments.push({ id: currentId, name: '…' });
-          break;
-        }
-
-        segments.push({ id: node.id, name: node.name || 'Folder' });
-
-        const parentId = node.parentId ?? 'root';
-        if (!parentId || parentId === 'root') {
-          segments.push({ id: 'root', name: DEFAULT_FOLDER_NAME });
-          break;
-        }
-
-        currentId = parentId;
-      }
-
-      if (!segments.some((segment) => segment.id === 'root')) {
-        segments.push({ id: 'root', name: DEFAULT_FOLDER_NAME });
-      }
-
-      return segments.reverse();
+      return resolveBreadcrumbs(folderId || 'root', folderNodes as any);
     },
     [folderNodes],
   );