Revert "fix: resolve all ESLint errors in backend and frontend"

This reverts commit 07dfd7e840.

paperless-backend/src/email-download/email-download.service.ts

@@ -19,7 +19,6 @@ import { Email } from '../database/entities/email.entity';
 import { Attachment } from '../database/entities/attachment.entity';
 import { Content } from '../database/entities/content.entity';
 import { isERechnung } from './zugferd.util';
-import { getErrorMessage, getErrorStack } from '../common/error.util';
 
 @Injectable()
 export class EmailDownloadService {
@@ -46,10 +45,10 @@ export class EmailDownloadService {
     this.running = true;
     try {
       await this.fetchAndStore();
-    } catch (err: unknown) {
+    } catch (err: any) {
       this.logger.error(
-        `Fehler im E-Mail-Download-Job: ${getErrorMessage(err)}`,
-        getErrorStack(err),
+        `Fehler im E-Mail-Download-Job: ${err.message}`,
+        err.stack,
       );
     } finally {
       this.running = false;
@@ -117,10 +116,10 @@ export class EmailDownloadService {
           }
 
           await this.processMessage(msg);
-        } catch (err: unknown) {
+        } catch (err: any) {
           this.logger.error(
-            `Fehler beim Abrufen der Nachricht ${messageId}: ${getErrorMessage(err)}`,
-            getErrorStack(err),
+            `Fehler beim Abrufen der Nachricht ${messageId}: ${err.message}`,
+            err.stack,
           );
         }
       }
@@ -158,7 +157,7 @@ export class EmailDownloadService {
     }> = [];
 
     for (const att of parsed.attachments) {
-      const entry = this.buildAttachment(att);
+      const entry = await this.buildAttachment(att);
       if (entry) attachmentsToPersist.push(entry);
     }
 
@@ -215,9 +214,9 @@ export class EmailDownloadService {
 
       await this.pdfService.cleanup(images);
       await fs.unlink(tempPdfPath).catch(() => {});
-    } catch (err: unknown) {
+    } catch (err: any) {
       this.logger.warn(
-        `Konnte Vorschaubilder für Anhang ${attachment.Id} nicht generieren: ${getErrorMessage(err)}`,
+        `Konnte Vorschaubilder für Anhang ${attachment.Id} nicht generieren: ${err.message}`,
       );
     }
   }
@@ -263,9 +262,9 @@ export class EmailDownloadService {
     return { processed, failed };
   }
 
-  private buildAttachment(
+  private async buildAttachment(
     att: MailAttachment,
-  ): { attachment: Attachment; buffer: Buffer } | null {
+  ): Promise<{ attachment: Attachment; buffer: Buffer } | null> {
     const buffer = att.content;
     if (!Buffer.isBuffer(buffer) || buffer.length === 0) return null;