feat: verarbeitete/ignorierte E-Mails beim Prüfen in IMAP-Ordner verschieben

- Cleanup-Cron von EmailDownloadService in ImapFolderService verschoben,
  damit er auch aus EmailController aufrufbar ist (zirkuläre Abhängigkeit vermieden)
- Beim Klick auf „Anhänge prüfen" wird der IMAP-Cleanup fire-and-forget gestartet
- Beim Klick auf „Bereits verarbeitete Anhänge prüfen" werden zusätzlich alle
  E-Mails im IMAP-Posteingang, die in der DB als verarbeitet (Status 1) oder
  ignoriert (Status 3) markiert sind, in den Ordner „importiert" verschoben
- Erfolgsmeldung zeigt Anzahl verschobener E-Mails an

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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

@@ -68,47 +68,6 @@ export class EmailDownloadService {
     });
   }
 
-  @Cron('0 3 * * *', { timeZone: 'Europe/Berlin' })
-  async cleanupImportedEmails(): Promise<void> {
-    if (!this.configService.get<string>('IMAP_HOST')) return;
-    const importedFolder = this.configService.get<string>('IMAP_IMPORTED_FOLDER', 'importiert');
-    const trashFolder = this.configService.get<string>('IMAP_TRASH_FOLDER', 'Trash');
-    const client = this.createImapClient();
-    try {
-      await client.connect();
-
-      // E-Mails älter als 90 Tage in Papierkorb verschieben
-      try {
-        await client.mailboxOpen(importedFolder);
-        const cutoff = new Date();
-        cutoff.setDate(cutoff.getDate() - 90);
-        const oldUids = await client.search({ before: cutoff }, { uid: true });
-        if (Array.isArray(oldUids) && oldUids.length > 0) {
-          await client.messageMove(oldUids, trashFolder, { uid: true });
-          this.logger.log(`${oldUids.length} alte E-Mail(s) aus "${importedFolder}" in "${trashFolder}" verschoben.`);
-        }
-      } catch (err: any) {
-        this.logger.warn(`Bereinigung "${importedFolder}" nicht möglich: ${err.message}`);
-      }
-
-      // Papierkorb leeren
-      try {
-        await client.mailboxOpen(trashFolder);
-        const trashUids = await client.search({ all: true }, { uid: true });
-        if (Array.isArray(trashUids) && trashUids.length > 0) {
-          await client.messageDelete(trashUids, { uid: true });
-          this.logger.log(`${trashUids.length} E-Mail(s) aus "${trashFolder}" gelöscht.`);
-        }
-      } catch (err: any) {
-        this.logger.warn(`Papierkorb "${trashFolder}" konnte nicht geleert werden: ${err.message}`);
-      }
-    } catch (err: any) {
-      this.logger.error(`IMAP-Cleanup fehlgeschlagen: ${err.message}`);
-    } finally {
-      await client.logout().catch(() => {});
-    }
-  }
-
   private async fetchAndStore(): Promise<void> {
     const host = this.configService.get<string>('IMAP_HOST');
     const user = this.configService.get<string>('IMAP_USERNAME');

paperless-backend/src/email/email.controller.ts

@@ -17,6 +17,7 @@ import { Email } from '../database/entities/email.entity';
 import { Attachment } from '../database/entities/attachment.entity';
 import { Content } from '../database/entities/content.entity';
 import { PaperlessService } from '../paperless/paperless.service';
+import { ImapFolderService } from './imap-folder.service';
 import { RequirePermissions } from '../auth/permissions.decorator';
 import { Permission } from '../auth/permissions.enum';
 
@@ -31,6 +32,7 @@ export class EmailController {
     @InjectRepository(Content)
     private readonly contentRepo: Repository<Content>,
     private readonly paperlessService: PaperlessService,
+    private readonly imapFolderService: ImapFolderService,
   ) {}
 
   @Get()
@@ -202,7 +204,21 @@ export class EmailController {
       this.logger.log(
         `Prüfung abgeschlossen. ${updatedCount} E-Mails aktualisiert, ${idsUpdated} Paperless-IDs ergänzt, ${skippedCount} übersprungen.`,
       );
-      return { updatedCount, idsUpdated };
+      this.imapFolderService.cleanupImportedEmails().catch(err =>
+        this.logger.error('IMAP-Cleanup fehlgeschlagen: ' + err.message),
+      );
+
+      let movedToImportiert = 0;
+      if (body.includeProcessed) {
+        const processedEmails = await this.emailRepo.find({
+          where: [{ Status: 1 }, { Status: 3 }],
+          select: ['MessageId'],
+        });
+        const messageIds = processedEmails.map((e) => e.MessageId).filter(Boolean);
+        movedToImportiert = await this.imapFolderService.moveProcessedInboxToImportiert(messageIds);
+      }
+
+      return { updatedCount, idsUpdated, movedToImportiert };
     } catch (error: any) {
       this.logger.error(
         `Kritischer Fehler bei checkAttachments: ${error.message}`,

paperless-backend/src/email/imap-folder.service.ts

@@ -1,5 +1,6 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
+import { Cron } from '@nestjs/schedule';
 import { ImapFlow } from 'imapflow';
 
 @Injectable()
@@ -21,6 +22,91 @@ export class ImapFolderService {
     });
   }
 
+  @Cron('0 3 * * *', { timeZone: 'Europe/Berlin' })
+  async cleanupImportedEmails(): Promise<void> {
+    if (!this.configService.get<string>('IMAP_HOST')) return;
+    const importedFolder = this.configService.get<string>('IMAP_IMPORTED_FOLDER', 'importiert');
+    const trashFolder = this.configService.get<string>('IMAP_TRASH_FOLDER', 'Trash');
+    const client = this.createClient();
+    try {
+      await client.connect();
+
+      // E-Mails älter als 90 Tage in Papierkorb verschieben
+      try {
+        await client.mailboxOpen(importedFolder);
+        const cutoff = new Date();
+        cutoff.setDate(cutoff.getDate() - 90);
+        const oldUids = await client.search({ before: cutoff }, { uid: true });
+        if (Array.isArray(oldUids) && oldUids.length > 0) {
+          await client.messageMove(oldUids, trashFolder, { uid: true });
+          this.logger.log(`${oldUids.length} alte E-Mail(s) aus "${importedFolder}" in "${trashFolder}" verschoben.`);
+        }
+      } catch (err: any) {
+        this.logger.warn(`Bereinigung "${importedFolder}" nicht möglich: ${err.message}`);
+      }
+
+      // Papierkorb leeren
+      try {
+        await client.mailboxOpen(trashFolder);
+        const trashUids = await client.search({ all: true }, { uid: true });
+        if (Array.isArray(trashUids) && trashUids.length > 0) {
+          await client.messageDelete(trashUids, { uid: true });
+          this.logger.log(`${trashUids.length} E-Mail(s) aus "${trashFolder}" gelöscht.`);
+        }
+      } catch (err: any) {
+        this.logger.warn(`Papierkorb "${trashFolder}" konnte nicht geleert werden: ${err.message}`);
+      }
+    } catch (err: any) {
+      this.logger.error(`IMAP-Cleanup fehlgeschlagen: ${err.message}`);
+    } finally {
+      await client.logout().catch(() => {});
+    }
+  }
+
+  async moveProcessedInboxToImportiert(messageIds: string[]): Promise<number> {
+    if (!this.configService.get<string>('IMAP_HOST') || messageIds.length === 0) return 0;
+
+    const importedFolder = this.configService.get<string>('IMAP_IMPORTED_FOLDER', 'importiert');
+    const client = this.createClient();
+    let movedCount = 0;
+
+    try {
+      await client.connect();
+
+      const mailboxes = await client.list();
+      if (!mailboxes.some(m => m.path === importedFolder)) {
+        await client.mailboxCreate(importedFolder);
+        this.logger.log(`IMAP-Ordner "${importedFolder}" erstellt.`);
+      }
+
+      const status = await client.mailboxOpen('INBOX');
+      if (status.exists === 0) return 0;
+
+      const normalize = (id: string) => id.replace(/^<|>$/g, '').toLowerCase();
+      const idSet = new Set(messageIds.map(normalize));
+      const uidsToMove: number[] = [];
+
+      for await (const msg of client.fetch('1:*', { uid: true, envelope: true })) {
+        const msgId = msg.envelope?.messageId;
+        if (msgId && idSet.has(normalize(msgId))) {
+          uidsToMove.push(msg.uid);
+        }
+      }
+
+      if (uidsToMove.length > 0) {
+        await client.messageMove(uidsToMove, importedFolder, { uid: true });
+        movedCount = uidsToMove.length;
+        this.logger.log(`${movedCount} E-Mail(s) aus INBOX → "${importedFolder}" verschoben.`);
+      }
+    } catch (err: any) {
+      this.logger.error(`moveProcessedInboxToImportiert fehlgeschlagen: ${err.message}`);
+    } finally {
+      await client.logout().catch(() => {});
+    }
+
+    return movedCount;
+  }
+
   async moveToImportiert(messageId: string): Promise<void> {
     if (!this.configService.get<string>('IMAP_HOST')) return;
 

paperless-frontend/src/api/emails.ts

@@ -44,7 +44,7 @@ export const emailsApi = {
     api.post<{ message: string }>('/api/emails/fetch').then((r) => r.data),
 
   checkAttachments: (includeProcessed = false) =>
-    api.post<{ updatedCount: number; idsUpdated: number }>('/api/emails/check-attachments', { includeProcessed }).then((r) => r.data),
+    api.post<{ updatedCount: number; idsUpdated: number; movedToImportiert: number }>('/api/emails/check-attachments', { includeProcessed }).then((r) => r.data),
 
   updateStatus: (id: number, status: number) =>
     api.patch<{ message?: string }>(`/api/emails/${id}/status`, { status }).then((r) => r.data),

paperless-frontend/src/pages/MailpostfachPage.tsx

@@ -172,6 +172,7 @@ export default function MailpostfachPage() {
                         const parts = [];
                         if (result.updatedCount > 0) parts.push(`${result.updatedCount} E-Mail(s) aktualisiert`);
                         if (result.idsUpdated > 0) parts.push(`${result.idsUpdated} Paperless-ID(s) ergänzt`);
+                        if (result.movedToImportiert > 0) parts.push(`${result.movedToImportiert} E-Mail(s) in „importiert" verschoben`);
                         message.success(parts.length > 0 ? parts.join(', ') + '.' : 'Keine Änderungen.');
                         if (result.updatedCount > 0 || result.idsUpdated > 0) await loadData();
                       } catch {