Enhancement: add processed mails management UI and API

src-ui/src/app/services/rest/processed-mail.service.ts

@@ -0,0 +1,19 @@
+import { Injectable } from '@angular/core'
+import { ProcessedMail } from 'src/app/data/processed-mail'
+import { AbstractPaperlessService } from './abstract-paperless-service'
+
+@Injectable({
+  providedIn: 'root',
+})
+export class ProcessedMailService extends AbstractPaperlessService<ProcessedMail> {
+  constructor() {
+    super()
+    this.resourceName = 'processed_mail'
+  }
+
+  public bulk_delete(mailIds: number[]) {
+    return this.http.post(`${this.getResourceUrl()}bulk_delete/`, {
+      mail_ids: mailIds,
+    })
+  }
+}