revert document types

frontend/src/preview/PreviewWorkspace.jsx

@@ -3,8 +3,6 @@ import { DownloadIcon, TextScanIcon, AnalyzeIcon, CloseIcon } from '../ui/icons'
 import { describeDocumentSummary } from '../documents/documentSummary';
 import { createDocumentActionState } from '../documents/documentActions';
 
-const resolveDocumentTypeName = (doc) => doc?.document_type?.name;
-
 const PreviewWorkspace = ({
   document,
   previewEntry,
@@ -21,7 +19,6 @@ const PreviewWorkspace = ({
   const tags = Array.isArray(document.tags)
     ? document.tags.map((tag) => tag?.label).filter(Boolean).join(', ')
     : '';
-  const documentTypeName = resolveDocumentTypeName(document);
 
   const formatDateTime = (value) => {
     if (!value) {
@@ -36,7 +33,6 @@ const PreviewWorkspace = ({
     { label: 'Archive Reference', value: document.archive_serial || '—' },
     { label: 'Issued On', value: formatDateTime(document.issued_at) },
     { label: 'Correspondent', value: correspondents || '—' },
-    { label: 'Document Type', value: documentTypeName || '—' },
     {
       label: 'Filename',
       value: document.archive_path || document.filename || '—',