refactor: Consolidate workspace utilities into new workspaceUtils.ts with typed entry keys, replacing appLayoutUtils.ts, and update related components.

frontend/src/hooks/documents/useDocumentUploads.ts

@@ -1,7 +1,7 @@
 import { useCallback, useRef, useState } from 'react';
 import type { Dispatch, MutableRefObject, SetStateAction } from 'react';
 import useFileDrop from './useFileDrop';
-import { DEFAULT_FOLDER_NAME, hasFiles } from '../../app/appLayoutUtils';
+import { DEFAULT_FOLDER_NAME, hasFiles } from '../../app/workspaceUtils';
 import { fetchDocument } from '../../lib/apiClient';
 
 type Identifier = string | number;
@@ -87,9 +87,9 @@ const mapFilesToEntries = (filesInput?: FileList | File[] | null): FileEntry[] =
       const relativePath = (file as File & { webkitRelativePath?: string })?.webkitRelativePath ?? '';
       const segments = relativePath
         ? relativePath
-            .split('/')
-            .slice(0, -1)
-            .filter(Boolean)
+          .split('/')
+          .slice(0, -1)
+          .filter(Boolean)
         : [];
       return { file, segments };
     });
@@ -325,9 +325,9 @@ const useDocumentUploads = ({
           const relativePath = (fileFromItem as File & { webkitRelativePath?: string })?.webkitRelativePath ?? '';
           const segments = relativePath
             ? relativePath
-                .split('/')
-                .slice(0, -1)
-                .filter(Boolean)
+              .split('/')
+              .slice(0, -1)
+              .filter(Boolean)
             : [];
           pushFile(fileFromItem, segments);
         }
@@ -355,9 +355,9 @@ const useDocumentUploads = ({
       const relativePath = (file as File & { webkitRelativePath?: string })?.webkitRelativePath ?? '';
       const segments = relativePath
         ? relativePath
-            .split('/')
-            .slice(0, -1)
-            .filter(Boolean)
+          .split('/')
+          .slice(0, -1)
+          .filter(Boolean)
         : [];
       pushFile(file, segments);
     });