refactor: replace direct Paperless upload with client-side document download functionality

paperless-backend/src/inbox/inbox.service.ts

@@ -14,7 +14,6 @@ import {
   InboxDocument,
   type InboxSource,
 } from '../database/entities/inbox-document.entity';
-import { PaperlessService } from '../paperless/paperless.service';
 import { MailService } from '../postprocessing/mail.service';
 import { applyEditsToTemp, cleanupTemp } from '../inbox-postprocessor/edit-applier';
 
@@ -44,7 +43,6 @@ export class InboxService {
     private readonly pageCache: PageCacheService,
     @InjectRepository(InboxDocument)
     private readonly documentRepo: Repository<InboxDocument>,
-    private readonly paperlessService: PaperlessService,
     private readonly mailService: MailService,
   ) {}
 
@@ -255,28 +253,16 @@ export class InboxService {
     return this.barcodeScanner.scanRegion(doc, pdfPath, page, x, y, w, h);
   }
 
-  async saveToPaperless(
+  async getEditedPdfBuffer(
     id: string,
     preferredUsername: string | null,
-    opts: {
-      title: string;
-      date?: string;
-      documentTypeId?: number;
-      correspondentId?: number;
-      tagIds?: number[];
-    },
-  ): Promise<void> {
+  ): Promise<{ buffer: Buffer; filename: string }> {
     const { doc, pdfPath } = await this.resolveDocument(id, preferredUsername);
     let tmpPath: string | null = null;
     try {
       tmpPath = await applyEditsToTemp(doc, pdfPath);
-      await this.paperlessService.uploadDocument(tmpPath, {
-        title: opts.title,
-        created: opts.date,
-        documentType: opts.documentTypeId,
-        correspondent: opts.correspondentId,
-        tags: opts.tagIds,
-      });
+      const buffer = await fs.readFile(tmpPath);
+      return { buffer, filename: doc.OriginalName };
     } finally {
       await cleanupTemp(tmpPath);
     }