feat: Seiten- und Wortzahl für den Duplikatvergleich

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

paperless-frontend/src/api/email-import.ts

@@ -1,4 +1,5 @@
 import api from './client';
+import type { VergleichKennzahlen } from './paperless';
 
 export interface CorrespondentMapping {
   Id: number;
@@ -50,6 +51,23 @@ export const emailImportApi = {
     await api.post('/api/email-import/belegnummer/release', { date: dateStr, number });
   },
 
+  attachmentPdfBlob: async (attachmentId: number, pages?: { start: number; end: number }): Promise<Blob> => {
+    const res = await api.get(`/api/email-import/attachments/${attachmentId}/pdf`, {
+      params: pages ? { start: pages.start, end: pages.end } : undefined,
+      responseType: 'blob',
+    });
+    return res.data;
+  },
+
+  vergleich: async (
+    attachmentId: number,
+    paperlessDocumentId: number,
+    pages?: { start: number; end: number },
+  ): Promise<VergleichKennzahlen> => {
+    const res = await api.post(`/api/email-import/attachments/${attachmentId}/vergleich`, { paperlessDocumentId, pages });
+    return res.data;
+  },
+
   printPreview: async (attachmentId: number, barcodeData: any, pages?: { start: number; end: number }): Promise<Blob> => {
     const res = await api.post(`/api/email-import/attachments/${attachmentId}/print-preview`, { ...barcodeData, _pages: pages }, {
       responseType: 'blob',