Refactor backend and frontend cleanup paths

frontend/src/api/documents.js

@@ -5,7 +5,7 @@
  *            DocumentPreviewModal.vue, FileManagerView.vue, CloudFolderView.vue
  */
 
-import { request, fetchWithRetry } from './utils.js'
+import { request, fetchWithRetry, jsonRequest } from './utils.js'
 
 export function listDocuments({ topic, page = 1, perPage = 20, folderId = null, q = null, sort = null, order = null } = {}) {
   const params = new URLSearchParams({ page, per_page: perPage })
@@ -31,18 +31,13 @@ export function deleteDocumentRemoveOnly(id) {
 }
 
 export function classifyDocument(id, topics = null) {
-  return request(`/api/documents/${id}/classify`, {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(topics ? { topics } : {}),
-  })
+  return jsonRequest(`/api/documents/${id}/classify`, 'POST', topics ? { topics } : {})
 }
 
 export function getUploadUrl(filename, contentType) {
-  return request('/api/documents/upload-url', {
-    method: 'POST',
-    headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify({ filename, content_type: contentType }),
+  return jsonRequest('/api/documents/upload-url', 'POST', {
+    filename,
+    content_type: contentType,
   })
 }