fix: address cashbox-export whole-branch review findings

- Reject dates that are not strict YYYY-MM-DD (was accepting full ISO
  datetimes, which silently produced empty exports instead of a 400)
  and reject from > to with a 400 before touching the team/DB.
- Emit the cashbox_export_download and cashbox_export_subscription_update
  audit log events that were declared but never fired, matching the
  audit trail every sibling feature already has.
- Restore full type checking on the pdfkit import via `import = require()`
  instead of an untyped require() with an eslint-disable.
- Tighten a cashbox.spec.ts assertion to check the exact dialog class
  instead of expect.anything(), so it can't pass with the wrong dialog
  wired to the Export button.
- Style and announce the export dialogs' error messages using this
  codebase's established error-message/role=alert pattern.

docs/superpowers/specs/2026-08-03-cashbox-export-design.md

@@ -0,0 +1,185 @@
+# Kassenbuch-Export (manuell + automatischer PDF-Versand)
+
+Status: approved
+Datum: 2026-08-03
+
+## Kontext
+
+TeamWallet bietet mit dem Kassenjournal (`teams/:id/transactions/journal`, Cashbox-Seite im
+Frontend) bereits eine paginierte, filterbare Ansicht aller Buchungen. Es gibt aber keine
+Möglichkeit, diese Daten für die Vereinsbuchhaltung oder eine Kassenprüfung zu exportieren — weder
+manuell (CSV/PDF-Download) noch automatisiert (regelmäßiger Versand an Vorstand/Kassenprüfer). Beide
+Fähigkeiten fehlen komplett (kein Export-Code, `mail`-Modul aktuell nur für Login/Passwort-Reset
+genutzt).
+
+Ziel: Ein Kassenwart/Captain/Coach kann (a) für einen frei wählbaren Zeitraum einen Kassenbuch-Export
+als CSV und/oder PDF herunterladen, und (b) optional einen wiederkehrenden automatischen PDF-Versand
+an beliebige E-Mail-Adressen einrichten (z.B. monatlich an den Vereinsvorstand).
+
+Das Feature wurde im Brainstorming aus mehreren Optionen ausgewählt (Alternativen: Saldo-
+Erinnerungen, server-seitige Journal-Filterung, Belege-Anhang, Vier-Augen-Prinzip — diese sind nicht
+Teil dieses Plans). Ausdrücklich nicht Teil dieses oder eines zukünftigen Plans: Team
+verlassen/löschen.
+
+## Fachliche Einordnung
+
+Ein "Kassenbuch" bildet nur **echte Kassenbewegungen** ab — Buchungen, die laut `setBalance()`
+(`Transaction`- und `TeamWalletTransaction`-Entity) tatsächlich `team.balance` verändern:
+
+- `Transaction` mit `type.id === 0` (`payment`) — Spieler zahlt echtes Geld ein.
+- **Alle** `TeamWalletTransaction`-Einträge (`credit` und `expense`) — direkte Kassenbewegungen ohne
+  Spielerbezug.
+
+Spieler-Fälligkeiten (`fee`/`levy`/`fine`, `type.id > 10`) verändern nur die Spielerschuld, nie den
+Kassenbestand, und werden **bewusst ausgeschlossen** (entspricht der gewählten Option "Nur
+Kassenjournal (Team-Saldo)").
+
+Der Export zeigt einen **Periodensaldo** (laufende Summe ab 0, beginnend am gewählten Startdatum),
+keinen historischen Kontostand — eine Rekonstruktion des absoluten Kontostands zu einem beliebigen
+Vergangenheitszeitpunkt wäre für den ersten Wurf YAGNI.
+
+## Entscheidungen aus dem Brainstorming
+
+- **Format**: CSV und PDF, beide.
+- **Zeitraum (manueller Export)**: frei wählbares Von/Bis-Datum.
+- **Inhalt**: nur Kassenjournal (Team-Saldo), keine Spieler-Fälligkeiten.
+- **Berechtigung**: wie Buchungen anlegen (`transaction_create_min_role`) — sowohl für den manuellen
+  Export als auch für die Konfiguration des automatischen Versands.
+- **Automatischer Versand — Intervalle**: monatlich, quartalsweise, jährlich (identisch zu den
+  wiederkehrenden Buchungen).
+- **Automatischer Versand — Zeitraum**: immer der jeweils **abgelaufene volle Zeitraum** (z.B. bei
+  monatlichem Versand am 1. des Monats immer genau der komplette Vormonat), nicht "seit letztem
+  Versand" (das wäre bei verpassten Läufen mehrdeutig).
+- **Automatischer Versand — Umfang**: **eine** Konfiguration pro Team (eine Empfängerliste, ein
+  Intervall, pausierbar) statt mehrerer unabhängiger Abos.
+- **Out of Scope**: Team verlassen/löschen (bereits an anderer Stelle ausgeschlossen).
+
+## Architektur / Komponenten
+
+### 1. Backend: neues Modul `cashbox-export/`
+
+Struktur analog zu `recurring-transactions/` (eigenständiges Modul statt Erweiterung von
+`teams.service.ts`, das bereits die Journal- und Statistik-Logik trägt).
+
+**`cashbox-export.service.ts`**:
+- `buildRows(team: Team, from: string, to: string): CashboxExportRow[]` — reine Funktion auf einer
+  bereits geladenen `Team`-Entity (inkl. `players.transactions.type`, `transactions.type`). Filtert
+  auf echte Kassenbewegungen (s.o.), grenzt auf `[from, to]` ein (Ende inklusiv, Tagesende), sortiert
+  chronologisch aufsteigend, berechnet laufenden `runningTotal`. Wird sowohl vom HTTP-Pfad als auch
+  vom Scheduler verwendet — keine Duplikation der Filterlogik.
+- `getExportRowsForUser(teamId, userId, from, to)` — HTTP-Pfad: prüft `transaction_create_min_role`
+  via `TeamAccessService.assertAtLeast`, lädt das Team, ruft `buildRows` auf.
+- `buildCsv(team, rows, from, to): string` — Semikolon-getrennt, deutsches Komma als
+  Dezimaltrennzeichen (Excel-DE-Standard), RFC4180-Escaping für Notizen mit Semikolon/Anführungszeichen/
+  Zeilenumbruch. Spalten: Datum, Typ, Wer (Spielername oder "Teamkasse"), Notiz, Betrag, Periodensaldo.
+  Bei leerem Zeitraum: nur Kopfzeile + Hinweiszeile "Keine Buchungen im gewählten Zeitraum".
+- `buildPdf(team, rows, from, to): Buffer` — einfache Tabellen-PDF via neuer Abhängigkeit **`pdfkit`**
+  (kein Chromium/Puppeteer nötig): Kopf mit Teamname + Zeitraum + Erstellungsdatum, Tabelle, Fußzeile
+  mit Periodensaldo. Gleiche Leerzeitraum-Behandlung wie CSV.
+
+**`cashbox-export.controller.ts`** (Pfad `cashbox-export`, `version: '1'`, nur `AuthGuard('jwt')`,
+Berechtigung im Service):
+- `GET cashbox-export/:teamId?from=&to=&format=csv|pdf` — liefert Datei über `@Res({passthrough:
+  false})` mit manuell gesetzten Headern (`Content-Type`, `Content-Disposition: attachment;
+  filename="kassenbuch_<teamAlias>_<from>_<to>.<ext>"`), kein globaler Response-Interceptor im
+  Projekt vorhanden, der das stören würde.
+- `GET cashbox-export/:teamId/subscription` — aktuelle Versand-Konfiguration (oder Default:
+  `{ recipients: [], interval: 'monthly', active: false }`).
+- `PUT cashbox-export/:teamId/subscription` — Upsert (Empfänger/Intervall/Aktiv-Status).
+
+**Neue Entity `entities/cashbox-export-subscription.entity.ts`**: `id`, `team` (ManyToOne, in der
+Praxis 1:1 durch Anwendungslogik im Service erzwungen — nur eine Subscription pro Team wird gepflegt/
+aktualisiert statt neu angelegt), `recipients` (`simple-array`-Spalte, Liste von E-Mail-Strings),
+`interval` (`RecurringTransactionIntervalEnum`, wiederverwendet aus dem `recurring-transactions`-
+Modul — fachlich identisches Konzept), `active` (default `false`), `nextRunDate` (string, ISO-Datum),
+`createdAt`.
+
+**DTO `UpsertCashboxExportSubscriptionDto`**: `recipients: string[]` (`@IsEmail({}, {each:true})`),
+`interval`, `active`. Validierung: `active === true` mit leerer `recipients`-Liste wird mit 400
+abgelehnt (ergibt keinen Sinn, nichts zu versenden aber "aktiv").
+
+**`cashbox-export.scheduler.ts`** (`@Cron`, zeitlich versetzt zum bestehenden
+Recurring-Transactions-Job, z.B. `04:00 Uhr` statt `03:00 Uhr`, um DB-Last zu entzerren):
+1. Lädt alle `active: true`-Subscriptions mit `nextRunDate <= heute` (inkl. `team`).
+2. Pro fälliger Subscription: bestimmt den **abgelaufenen** Zeitraum passend zum `interval`
+   ausgehend von `nextRunDate` (z.B. `nextRunDate = 2026-09-01`, `interval = monthly` → Zeitraum
+   `2026-08-01`–`2026-08-31`), lädt das Team (inkl. Relationen), ruft `buildRows` + `buildPdf` auf
+   (Wiederverwendung derselben Logik wie der manuelle Export), verschickt das PDF per
+   `MailService`/`MailerService`-Attachment an alle `recipients` (neues Template
+   `mail-templates/cashbox-export.hbs`, analog Aufbau zu `reset-password.hbs`), rückt `nextRunDate`
+   um das Intervall vor (gleiche `setUTCMonth`-Arithmetik wie im Recurring-Transactions-Scheduler:
+   `+1`/`+3`/`+12` Monate) und speichert.
+3. Ein verpasster Tag (Server-Downtime) wird beim nächsten Lauf automatisch nachgeholt (rein
+   datumsbasierter Check wie beim Recurring-Transactions-Scheduler).
+
+**Registrierung**: `CashboxExportModule` in `src/app.module.ts` ergänzen (analog `PenaltyModule`/
+`RecurringTransactionsModule`); `MailModule` importieren für den Versand.
+
+**Logging-Events**: `cashbox_export_download`, `cashbox_export_subscription_update`,
+`cashbox_export_subscription_run` in `logging-event.type.ts` ergänzen.
+
+### 2. Frontend
+
+**Cashbox-Toolbar**: neuer "Export"-Button (sichtbar nur mit `canDo(team(), 'transactionCreate')`,
+kein neuer Permission-Key) öffnet einen Dialog mit Von/Bis-Datumsfeldern und Format-Auswahl
+(CSV/PDF), löst über `CashboxExportApi.exportCashbox(teamId, from, to, format)`
+(`responseType: 'blob'`) den Download aus. Ein kleiner `FileDownloadService.save(blob, filename)`
+kapselt den Anchor-Click-Mechanismus, damit die Dialog-Komponente ohne echte DOM-Downloads getestet
+werden kann (Service wird im Test gemockt).
+
+Im selben Export-Bereich zusätzlich ein Zahnrad/Link "Automatischen Versand einrichten" → eigener
+Dialog: Chip-Liste für E-Mail-Adressen (hinzufügen/entfernen, clientseitige Format-Validierung vor
+dem Speichern), Intervall-Dropdown, Aktiv/Pausiert-Toggle, Speichern-Button. Neue Methoden
+`CashboxExportApi.getSubscription(teamId)` / `updateSubscription(teamId, dto)`.
+
+Neues Model `models/cashbox-export.model.ts` (`CashboxExportFormat`, `CashboxExportSubscription`,
+`UpdateCashboxExportSubscription`).
+
+## Fehlerbehandlung
+
+- `from > to` → 400 (Backend), Submit-Button im Dialog zusätzlich clientseitig deaktiviert.
+- Keine Buchungen im Zeitraum → Datei wird trotzdem erzeugt (Kopfzeile + Hinweistext), kein Fehler.
+- Ungültige E-Mail-Adresse in der Empfängerliste → 400 (DTO-Validierung), Inline-Fehler im Dialog.
+- `active: true` mit leerer Empfängerliste → 400.
+- Fehlende Berechtigung → bestehender `assertAtLeast`-Wurf (403), keine neue Behandlung nötig.
+
+## Testing
+
+**Backend**:
+- `cashbox-export.service.spec.ts` — Filterlogik (Ausschluss fee/levy/fine, Einschluss payment +
+  alle TeamWallet-Typen), Datumsgrenzen (inklusive Tagesende), laufender Saldo, leerer Zeitraum,
+  Berechtigungsdurchsetzung.
+- `cashbox-export.http.spec.ts` — Auth erforderlich, korrekte Header/Content-Type je Format, CSV-
+  Inhalt exakt geprüft (String-Vergleich), PDF nur auf `%PDF-`-Signatur + Non-Empty geprüft (kein
+  Byte-Vergleich).
+- `cashbox-export-subscription.service.spec.ts` — Upsert, Validierung (aktiv + leere Liste),
+  Berechtigung.
+- `cashbox-export.scheduler.spec.ts` — Perioden-Berechnung je Intervall (`it.each`), PDF+Mail-
+  Dispatch mit gemocktem `MailerService` (Attachment vorhanden, korrekte Empfänger/Betreff),
+  `nextRunDate`-Vorrücken, überspringt inaktive/nicht-fällige Subscriptions, Downtime-Nachholung.
+
+**Frontend**:
+- `cashbox-export-api.spec.ts` — korrekte HTTP-Calls (Query-Params, `responseType: 'blob'`,
+  Subscription-GET/PUT).
+- Export-Dialog-Spec — Formvalidierung (`from <= to`), Permission-Gating, ruft
+  `FileDownloadService.save` mit korrekten Argumenten auf.
+- Subscription-Dialog-Spec — Laden/Speichern, Chip-Validierung, Permission-Gating.
+
+## Bewusst nicht enthalten (YAGNI)
+
+- Kein historischer Anfangssaldo (nur Periodensaldo ab 0 innerhalb des Exportzeitraums).
+- Kein Export der Spieler-Fälligkeiten (fee/levy/fine).
+- Kein Excel-(.xlsx)-Format, nur CSV+PDF.
+- Keine mehreren Versand-Konfigurationen pro Team.
+- Kein CSV im automatischen Versand, nur PDF.
+- Keine Empfänger-Verifizierung (Double-Opt-In) für frei eingetragene Adressen.
+
+## Verifikation
+
+- **Backend-Unit-Tests**: siehe oben, alle grün, `nest build` sauber.
+- **Frontend-Unit-Tests**: siehe oben, alle grün, `tsc --noEmit` + `ng build` sauber.
+- **Manuell**: Backend lokal starten, über die neue UI einen CSV- und einen PDF-Export für einen
+  Zeitraum mit bekannten Testbuchungen herunterladen und Inhalt/Saldo stichprobenartig prüfen; eine
+  Subscription mit `nextRunDate` = heute anlegen, Scheduler-Methode einmalig manuell aufrufen, prüfen
+  dass eine E-Mail mit PDF-Anhang an alle konfigurierten Adressen geht und `nextRunDate` korrekt
+  vorrückt.

myteamwallet_backend/package-lock.json

@@ -30,6 +30,7 @@
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+      "integrity": "sha512-x7bc76x0bm4prf1VLg79uhAzKw8DVboClSN5VxJuQ+LKDOVEW9CdH+VY7SP+vX7xCYQqzzgQpFqz15zeLvAtZQ==",
+      "requires": {
+        "pako": "^0.2.5",
+        "tiny-inflate": "^1.0.0"
+      },
+      "dependencies": {
+        "pako": {
+          "version": "0.2.9",
+          "resolved": "https://registry.npmjs.org/pako/-/pako-0.2.9.tgz",
+          "integrity": "sha512-NUcwaKxUxWrZLpDG+z/xZaCgQITkA/Dv4V/T6bw7VON6l1Xz/VnrBqrYjZQ12TamKHzITTfOEIYUj48y2KXImA=="
+        }
+      }
+    },
     "universalify": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.0.tgz",

myteamwallet_backend/package.json

@@ -49,6 +49,7 @@
     "passport": "0.6.0",
     "passport-anonymous": "1.0.1",
     "passport-jwt": "4.0.0",
+    "pdfkit": "^0.19.1",
     "pg": "8.8.0",
     "reflect-metadata": "0.1.13",
     "rimraf": "3.0.2",
@@ -68,6 +69,7 @@
     "@types/node": "16.18.3",
     "@types/passport-anonymous": "1.0.3",
     "@types/passport-jwt": "3.0.7",
+    "@types/pdfkit": "^0.17.6",
     "@types/supertest": "2.0.12",
     "@typescript-eslint/eslint-plugin": "5.43.0",
     "@typescript-eslint/parser": "5.43.0",

myteamwallet_backend/src/app.module.ts

@@ -24,6 +24,7 @@ import { LoggingModule } from './database/logging/logging.module';
 import { TranslateModule } from './translate/translate.module';
 import { PenaltyModule } from './penalty/penalty.module';
 import { RecurringTransactionsModule } from './recurring-transactions/recurring-transactions.module';
+import { CashboxExportModule } from './cashbox-export/cashbox-export.module';
 
 @Module({
   imports: [
@@ -59,6 +60,7 @@ import { RecurringTransactionsModule } from './recurring-transactions/recurring-
     TranslateModule,
     PenaltyModule,
     RecurringTransactionsModule,
+    CashboxExportModule,
   ],
   providers: [],
 })

myteamwallet_backend/src/cashbox-export/cashbox-export-subscription.service.spec.ts

@@ -0,0 +1,125 @@
+import { BadRequestException } from '@nestjs/common';
+import { TeamRolesEnum } from '../team-roles/team-roles.enum';
+import { RecurringTransactionIntervalEnum } from '../recurring-transactions/recurring-transaction-interval.enum';
+import { CashboxExportSubscriptionService } from './cashbox-export-subscription.service';
+
+describe('CashboxExportSubscriptionService', () => {
+  const repository = { findOne: jest.fn(), create: jest.fn((v) => v), save: jest.fn(async (v) => v) };
+  const access = { assertAtLeast: jest.fn() };
+  const logger = { info: jest.fn() };
+  let service: CashboxExportSubscriptionService;
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    service = new CashboxExportSubscriptionService(repository as any, access as any, logger as any);
+  });
+
+  it('returns a paused default when no subscription exists yet', async () => {
+    repository.findOne.mockResolvedValue(null);
+
+    await expect(service.getSubscription(5, 42)).resolves.toEqual({
+      recipients: [],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: false,
+      nextRunDate: null,
+    });
+    expect(access.assertAtLeast).toHaveBeenCalledWith(
+      42,
+      5,
+      'transaction_create_min_role',
+      TeamRolesEnum.scnd_treasurer,
+    );
+  });
+
+  it('returns the existing subscription', async () => {
+    repository.findOne.mockResolvedValue({
+      recipients: ['vorstand@example.com'],
+      interval: RecurringTransactionIntervalEnum.yearly,
+      active: true,
+      nextRunDate: '2027-01-01T00:00:00.000Z',
+    });
+
+    await expect(service.getSubscription(5, 42)).resolves.toEqual({
+      recipients: ['vorstand@example.com'],
+      interval: RecurringTransactionIntervalEnum.yearly,
+      active: true,
+      nextRunDate: '2027-01-01T00:00:00.000Z',
+    });
+  });
+
+  it('rejects activating with an empty recipient list', async () => {
+    repository.findOne.mockResolvedValue(null);
+
+    await expect(
+      service.upsertSubscription(5, 42, {
+        recipients: [],
+        interval: RecurringTransactionIntervalEnum.monthly,
+        active: true,
+      }),
+    ).rejects.toBeInstanceOf(BadRequestException);
+    expect(repository.save).not.toHaveBeenCalled();
+  });
+
+  it('creates a new subscription and computes the next period boundary on first activation', async () => {
+    repository.findOne.mockResolvedValue(null);
+    jest.useFakeTimers().setSystemTime(new Date('2026-08-15T10:00:00.000Z'));
+
+    const result = await service.upsertSubscription(5, 42, {
+      recipients: ['vorstand@example.com'],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: true,
+    });
+
+    expect(result.nextRunDate).toBe('2026-09-01T00:00:00.000Z');
+    expect(repository.save).toHaveBeenCalledWith(
+      expect.objectContaining({
+        recipients: ['vorstand@example.com'],
+        interval: RecurringTransactionIntervalEnum.monthly,
+        active: true,
+        nextRunDate: '2026-09-01T00:00:00.000Z',
+      }),
+    );
+    expect(logger.info).toHaveBeenCalledWith({
+      event: 'cashbox_export_subscription_update',
+      details: 'teamId=5 active=true interval=monthly recipients=1',
+      userId: 42,
+    });
+    jest.useRealTimers();
+  });
+
+  it('keeps the existing nextRunDate when editing recipients without changing interval or activation state', async () => {
+    repository.findOne.mockResolvedValue({
+      recipients: ['old@example.com'],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: true,
+      nextRunDate: '2026-09-01T00:00:00.000Z',
+    });
+
+    const result = await service.upsertSubscription(5, 42, {
+      recipients: ['new@example.com'],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: true,
+    });
+
+    expect(result.nextRunDate).toBe('2026-09-01T00:00:00.000Z');
+  });
+
+  it('recomputes nextRunDate when the interval changes', async () => {
+    repository.findOne.mockResolvedValue({
+      recipients: ['a@example.com'],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: true,
+      nextRunDate: '2026-09-01T00:00:00.000Z',
+    });
+    jest.useFakeTimers().setSystemTime(new Date('2026-08-15T10:00:00.000Z'));
+
+    const result = await service.upsertSubscription(5, 42, {
+      recipients: ['a@example.com'],
+      interval: RecurringTransactionIntervalEnum.yearly,
+      active: true,
+    });
+
+    expect(result.nextRunDate).toBe('2027-08-01T00:00:00.000Z');
+    jest.useRealTimers();
+  });
+});

myteamwallet_backend/src/cashbox-export/cashbox-export-subscription.service.ts

@@ -0,0 +1,106 @@
+import { BadRequestException, Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { LoggingService } from 'src/database/logging/logging.service';
+import { TeamRolesEnum } from 'src/team-roles/team-roles.enum';
+import { TeamAccessService } from 'src/teams/team-access.service';
+import { Repository } from 'typeorm';
+import { RecurringTransactionIntervalEnum } from 'src/recurring-transactions/recurring-transaction-interval.enum';
+import { CashboxExportSubscriptionResponseDTO } from './dto/cashbox-export-subscription-response.dto';
+import { UpsertCashboxExportSubscriptionDTO } from './dto/upsert-cashbox-export-subscription.dto';
+import { CashboxExportSubscription } from './entities/cashbox-export-subscription.entity';
+
+const INTERVAL_MONTHS: Record<RecurringTransactionIntervalEnum, number> = {
+  [RecurringTransactionIntervalEnum.monthly]: 1,
+  [RecurringTransactionIntervalEnum.quarterly]: 3,
+  [RecurringTransactionIntervalEnum.yearly]: 12,
+};
+
+@Injectable()
+export class CashboxExportSubscriptionService {
+  constructor(
+    @InjectRepository(CashboxExportSubscription)
+    private readonly repository: Repository<CashboxExportSubscription>,
+    private readonly access: TeamAccessService,
+    private readonly logger: LoggingService,
+  ) {}
+
+  async getSubscription(
+    teamId: number,
+    userId: number,
+  ): Promise<CashboxExportSubscriptionResponseDTO> {
+    await this.assertAccess(userId, teamId);
+    const existing = await this.repository.findOne({ where: { team: { id: teamId } } });
+    if (!existing) {
+      return {
+        recipients: [],
+        interval: RecurringTransactionIntervalEnum.monthly,
+        active: false,
+        nextRunDate: null,
+      };
+    }
+    return this.toResponse(existing);
+  }
+
+  async upsertSubscription(
+    teamId: number,
+    userId: number,
+    dto: UpsertCashboxExportSubscriptionDTO,
+  ): Promise<CashboxExportSubscriptionResponseDTO> {
+    await this.assertAccess(userId, teamId);
+    if (dto.active && dto.recipients.length === 0) {
+      throw new BadRequestException(
+        'Ein aktivierter automatischer Versand benötigt mindestens eine Empfängeradresse.',
+      );
+    }
+
+    const existing = await this.repository.findOne({ where: { team: { id: teamId } } });
+    const needsNewSchedule =
+      !existing || (dto.active && (!existing.active || existing.interval !== dto.interval));
+
+    const entity =
+      existing ??
+      this.repository.create({ team: { id: teamId } as any, nextRunDate: null, active: false });
+
+    entity.recipients = dto.recipients;
+    entity.interval = dto.interval;
+    entity.active = dto.active;
+    if (needsNewSchedule) {
+      entity.nextRunDate = this.nextBoundary(dto.interval);
+    }
+
+    const saved = await this.repository.save(entity);
+    await this.logger.info({
+      event: 'cashbox_export_subscription_update',
+      details: `teamId=${teamId} active=${dto.active} interval=${dto.interval} recipients=${dto.recipients.length}`,
+      userId,
+    });
+    return this.toResponse(saved);
+  }
+
+  private async assertAccess(userId: number, teamId: number): Promise<void> {
+    await this.access.assertAtLeast(
+      userId,
+      teamId,
+      'transaction_create_min_role',
+      TeamRolesEnum.scnd_treasurer,
+    );
+  }
+
+  private nextBoundary(interval: RecurringTransactionIntervalEnum): string {
+    const now = new Date();
+    const date = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), 1));
+    date.setUTCMonth(date.getUTCMonth() + INTERVAL_MONTHS[interval]);
+    return date.toISOString();
+  }
+
+  private toResponse(
+    entity: CashboxExportSubscription,
+  ): CashboxExportSubscriptionResponseDTO {
+    return {
+      recipients: entity.recipients,
+      interval: entity.interval,
+      active: entity.active,
+      nextRunDate: entity.nextRunDate,
+    };
+  }
+}

myteamwallet_backend/src/cashbox-export/cashbox-export.controller.ts

@@ -0,0 +1,69 @@
+import {
+  Body,
+  Controller,
+  Get,
+  Param,
+  ParseIntPipe,
+  Put,
+  Query,
+  Request,
+  Res,
+  UseGuards,
+} from '@nestjs/common';
+import { AuthGuard } from '@nestjs/passport';
+import { ApiBearerAuth } from '@nestjs/swagger';
+import type { Response } from 'express';
+import { CashboxExportQueryDto } from './dto/cashbox-export-query.dto';
+import { UpsertCashboxExportSubscriptionDTO } from './dto/upsert-cashbox-export-subscription.dto';
+import { CashboxExportService } from './cashbox-export.service';
+import { CashboxExportSubscriptionService } from './cashbox-export-subscription.service';
+
+type AuthenticatedRequest = { user: { id: number } };
+
+@ApiBearerAuth()
+@UseGuards(AuthGuard('jwt'))
+@Controller({ path: 'cashbox-export', version: '1' })
+export class CashboxExportController {
+  constructor(
+    private readonly service: CashboxExportService,
+    private readonly subscriptionService: CashboxExportSubscriptionService,
+  ) {}
+
+  @Get(':teamId')
+  async exportCashbox(
+    @Request() request: AuthenticatedRequest,
+    @Param('teamId', ParseIntPipe) teamId: number,
+    @Query() query: CashboxExportQueryDto,
+    @Res({ passthrough: false }) res: Response,
+  ): Promise<void> {
+    const { buffer, contentType, filename } = await this.service.exportForUser(
+      teamId,
+      request.user.id,
+      query.from,
+      query.to,
+      query.format,
+    );
+    res.set({
+      'Content-Type': contentType,
+      'Content-Disposition': `attachment; filename="${filename}"`,
+    });
+    res.send(buffer);
+  }
+
+  @Get(':teamId/subscription')
+  getSubscription(
+    @Request() request: AuthenticatedRequest,
+    @Param('teamId', ParseIntPipe) teamId: number,
+  ) {
+    return this.subscriptionService.getSubscription(teamId, request.user.id);
+  }
+
+  @Put(':teamId/subscription')
+  upsertSubscription(
+    @Request() request: AuthenticatedRequest,
+    @Param('teamId', ParseIntPipe) teamId: number,
+    @Body() dto: UpsertCashboxExportSubscriptionDTO,
+  ) {
+    return this.subscriptionService.upsertSubscription(teamId, request.user.id, dto);
+  }
+}

myteamwallet_backend/src/cashbox-export/cashbox-export.http.spec.ts

@@ -0,0 +1,173 @@
+import {
+  INestApplication,
+  UnauthorizedException,
+  ValidationPipe,
+  VersioningType,
+} from '@nestjs/common';
+import { AuthGuard } from '@nestjs/passport';
+import { Test } from '@nestjs/testing';
+import * as request from 'supertest';
+import { RecurringTransactionIntervalEnum } from '../recurring-transactions/recurring-transaction-interval.enum';
+import validationOptions from '../utils/validation-options';
+import { CashboxExportController } from './cashbox-export.controller';
+import { CashboxExportService } from './cashbox-export.service';
+import { CashboxExportSubscriptionService } from './cashbox-export-subscription.service';
+
+describe('cashbox export HTTP boundary', () => {
+  let app: INestApplication;
+  const service = {
+    exportForUser: jest.fn(),
+  };
+  const subscriptionService = {
+    getSubscription: jest.fn(),
+    upsertSubscription: jest.fn(),
+  };
+
+  beforeAll(async () => {
+    const module = await Test.createTestingModule({
+      controllers: [CashboxExportController],
+      providers: [
+        { provide: CashboxExportService, useValue: service },
+        { provide: CashboxExportSubscriptionService, useValue: subscriptionService },
+      ],
+    })
+      .overrideGuard(AuthGuard('jwt'))
+      .useValue({
+        canActivate(context) {
+          const httpRequest = context.switchToHttp().getRequest();
+          if (httpRequest.headers.authorization !== 'Bearer user') {
+            throw new UnauthorizedException();
+          }
+          httpRequest.user = { id: 42, role: { id: 2 } };
+          return true;
+        },
+      })
+      .compile();
+    app = module.createNestApplication();
+    app.setGlobalPrefix('api');
+    app.enableVersioning({ type: VersioningType.URI });
+    app.useGlobalPipes(new ValidationPipe(validationOptions));
+    await app.init();
+  });
+
+  afterAll(() => app.close());
+  beforeEach(() => jest.clearAllMocks());
+
+  it('requires authentication', async () => {
+    await request(app.getHttpServer())
+      .get('/api/v1/cashbox-export/5?from=2026-08-01&to=2026-08-31&format=csv')
+      .expect(401);
+  });
+
+  it('rejects an invalid format', async () => {
+    await request(app.getHttpServer())
+      .get('/api/v1/cashbox-export/5?from=2026-08-01&to=2026-08-31&format=xls')
+      .set('Authorization', 'Bearer user')
+      .expect(422);
+    expect(service.exportForUser).not.toHaveBeenCalled();
+  });
+
+  it('rejects a full ISO datetime instead of a plain YYYY-MM-DD date for from', async () => {
+    await request(app.getHttpServer())
+      .get(
+        '/api/v1/cashbox-export/5?from=2026-08-01T12:00:00Z&to=2026-08-31&format=csv',
+      )
+      .set('Authorization', 'Bearer user')
+      .expect(422);
+    expect(service.exportForUser).not.toHaveBeenCalled();
+  });
+
+  it('rejects a malformed date string for to', async () => {
+    await request(app.getHttpServer())
+      .get('/api/v1/cashbox-export/5?from=2026-08-01&to=not-a-date&format=csv')
+      .set('Authorization', 'Bearer user')
+      .expect(422);
+    expect(service.exportForUser).not.toHaveBeenCalled();
+  });
+
+  it('returns a CSV file with correct headers and content', async () => {
+    const csvBuffer = Buffer.from('Datum;Typ;Wer;Notiz;Betrag;Periodensaldo', 'utf-8');
+    service.exportForUser.mockResolvedValue({
+      buffer: csvBuffer,
+      contentType: 'text/csv; charset=utf-8',
+      filename: 'kassenbuch_team-a_2026-08-01_2026-08-31.csv',
+    });
+
+    const response = await request(app.getHttpServer())
+      .get('/api/v1/cashbox-export/5?from=2026-08-01&to=2026-08-31&format=csv')
+      .set('Authorization', 'Bearer user')
+      .expect(200);
+
+    expect(response.headers['content-type']).toContain('text/csv');
+    expect(response.headers['content-disposition']).toContain(
+      'kassenbuch_team-a_2026-08-01_2026-08-31.csv',
+    );
+    expect(response.text).toBe(csvBuffer.toString('utf-8'));
+    expect(service.exportForUser).toHaveBeenCalledWith(5, 42, '2026-08-01', '2026-08-31', 'csv');
+  });
+
+  it('returns a PDF file with correct headers and binary content', async () => {
+    const pdfBuffer = Buffer.from('%PDF-1.4 fake content');
+    service.exportForUser.mockResolvedValue({
+      buffer: pdfBuffer,
+      contentType: 'application/pdf',
+      filename: 'kassenbuch_team-a_2026-08-01_2026-08-31.pdf',
+    });
+
+    const response = await request(app.getHttpServer())
+      .get('/api/v1/cashbox-export/5?from=2026-08-01&to=2026-08-31&format=pdf')
+      .set('Authorization', 'Bearer user')
+      .expect(200);
+
+    expect(response.headers['content-type']).toBe('application/pdf');
+    expect(Buffer.from(response.body).equals(pdfBuffer)).toBe(true);
+  });
+
+  it('reads the current subscription', async () => {
+    const subscription = {
+      recipients: ['vorstand@example.com'],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: true,
+      nextRunDate: '2026-09-01T00:00:00.000Z',
+    };
+    subscriptionService.getSubscription.mockResolvedValue(subscription);
+
+    await request(app.getHttpServer())
+      .get('/api/v1/cashbox-export/5/subscription')
+      .set('Authorization', 'Bearer user')
+      .expect(200)
+      .expect(subscription);
+    expect(subscriptionService.getSubscription).toHaveBeenCalledWith(5, 42);
+  });
+
+  it('rejects an invalid recipient email on upsert', async () => {
+    await request(app.getHttpServer())
+      .put('/api/v1/cashbox-export/5/subscription')
+      .set('Authorization', 'Bearer user')
+      .send({ recipients: ['not-an-email'], interval: 'monthly', active: true })
+      .expect(422);
+    expect(subscriptionService.upsertSubscription).not.toHaveBeenCalled();
+  });
+
+  it('accepts a valid subscription upsert', async () => {
+    const subscription = {
+      recipients: ['vorstand@example.com'],
+      interval: RecurringTransactionIntervalEnum.monthly,
+      active: true,
+      nextRunDate: '2026-09-01T00:00:00.000Z',
+    };
+    subscriptionService.upsertSubscription.mockResolvedValue(subscription);
+
+    await request(app.getHttpServer())
+      .put('/api/v1/cashbox-export/5/subscription')
+      .set('Authorization', 'Bearer user')
+      .send({ recipients: ['vorstand@example.com'], interval: 'monthly', active: true })
+      .expect(200)
+      .expect(subscription);
+    expect(subscriptionService.upsertSubscription).toHaveBeenCalledWith(5, 42, {
+      recipients: ['vorstand@example.com'],
+      interval: 'monthly',
+      active: true,
+    });
+  });
+});

myteamwallet_backend/src/cashbox-export/cashbox-export.module.ts

@@ -0,0 +1,23 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { LoggingModule } from 'src/database/logging/logging.module';
+import { MailModule } from 'src/mail/mail.module';
+import { Team } from 'src/teams/entities/team.entity';
+import { TeamsModule } from 'src/teams/teams.module';
+import { CashboxExportSubscription } from './entities/cashbox-export-subscription.entity';
+import { CashboxExportController } from './cashbox-export.controller';
+import { CashboxExportService } from './cashbox-export.service';
+import { CashboxExportSubscriptionService } from './cashbox-export-subscription.service';
+import { CashboxExportScheduler } from './cashbox-export.scheduler';
+
+@Module({
+  controllers: [CashboxExportController],
+  providers: [CashboxExportService, CashboxExportSubscriptionService, CashboxExportScheduler],
+  imports: [
+    TypeOrmModule.forFeature([Team, CashboxExportSubscription]),
+    TeamsModule,
+    MailModule,
+    LoggingModule,
+  ],
+})
+export class CashboxExportModule {}

myteamwallet_backend/src/cashbox-export/cashbox-export.scheduler.spec.ts

@@ -0,0 +1,146 @@
+import { RecurringTransactionIntervalEnum } from '../recurring-transactions/recurring-transaction-interval.enum';
+import { CashboxExportScheduler } from './cashbox-export.scheduler';
+
+describe('CashboxExportScheduler', () => {
+  const subscriptionRepository = { find: jest.fn(), save: jest.fn((v) => v) };
+  const teamRepository = { findOne: jest.fn() };
+  const mailService = { cashboxExport: jest.fn() };
+  const logger = { info: jest.fn(), error: jest.fn() };
+  let scheduler: CashboxExportScheduler;
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    scheduler = new CashboxExportScheduler(
+      subscriptionRepository as any,
+      teamRepository as any,
+      mailService as any,
+      logger as any,
+    );
+  });
+
+  it('does nothing when no subscription is due', async () => {
+    subscriptionRepository.find.mockResolvedValue([]);
+
+    await scheduler.runDueSubscriptions();
+
+    expect(teamRepository.findOne).not.toHaveBeenCalled();
+    expect(mailService.cashboxExport).not.toHaveBeenCalled();
+  });
+
+  it('emails the elapsed monthly period and advances nextRunDate', async () => {
+    subscriptionRepository.find.mockResolvedValue([
+      {
+        id: 1,
+        team: { id: 5 },
+        recipients: ['vorstand@example.com'],
+        interval: RecurringTransactionIntervalEnum.monthly,
+        nextRunDate: '2026-09-01T00:00:00.000Z',
+        active: true,
+      },
+    ]);
+    teamRepository.findOne.mockResolvedValue({
+      id: 5,
+      name: 'Team A',
+      alias: 'team-a',
+      transactions: [
+        { date: '2026-08-15T00:00:00.000Z', amount: 10, note: 'Sponsoring', type: { name: 'credit' } },
+      ],
+      players: [],
+    });
+
+    await scheduler.runDueSubscriptions();
+
+    expect(teamRepository.findOne).toHaveBeenCalledWith({
+      where: { id: 5 },
+      relations: ['players', 'players.transactions', 'transactions'],
+    });
+    expect(mailService.cashboxExport).toHaveBeenCalledTimes(1);
+    const [mailData, attachment, filename] = mailService.cashboxExport.mock.calls[0];
+    expect(mailData).toEqual({
+      to: 'vorstand@example.com',
+      data: { teamName: 'Team A', from: '2026-08-01', to: '2026-08-31' },
+    });
+    expect(Buffer.isBuffer(attachment)).toBe(true);
+    expect(filename).toBe('kassenbuch_team-a_2026-08-01_2026-08-31.pdf');
+    expect(subscriptionRepository.save).toHaveBeenCalledWith(
+      expect.objectContaining({ nextRunDate: '2026-10-01T00:00:00.000Z' }),
+    );
+    expect(logger.info).toHaveBeenCalledWith({
+      event: 'cashbox_export_subscription_run',
+      details: 'teamId=5 recipients=1 from=2026-08-01 to=2026-08-31',
+      userId: -1,
+    });
+  });
+
+  it.each([
+    [RecurringTransactionIntervalEnum.monthly, '2026-09-01T00:00:00.000Z', '2026-08-01', '2026-08-31', '2026-10-01T00:00:00.000Z'],
+    [RecurringTransactionIntervalEnum.quarterly, '2026-09-01T00:00:00.000Z', '2026-06-01', '2026-08-31', '2026-12-01T00:00:00.000Z'],
+    [RecurringTransactionIntervalEnum.yearly, '2027-01-01T00:00:00.000Z', '2026-01-01', '2026-12-31', '2028-01-01T00:00:00.000Z'],
+  ])(
+    'computes the elapsed period and next run date for %s',
+    async (interval, nextRunDate, expectedFrom, expectedTo, expectedNext) => {
+      subscriptionRepository.find.mockResolvedValue([
+        { id: 1, team: { id: 5 }, recipients: ['a@example.com'], interval, nextRunDate, active: true },
+      ]);
+      teamRepository.findOne.mockResolvedValue({
+        id: 5,
+        name: 'Team A',
+        alias: 'team-a',
+        transactions: [],
+        players: [],
+      });
+
+      await scheduler.runDueSubscriptions();
+
+      const [mailData] = mailService.cashboxExport.mock.calls[0];
+      expect(mailData.data.from).toBe(expectedFrom);
+      expect(mailData.data.to).toBe(expectedTo);
+      expect(subscriptionRepository.save).toHaveBeenCalledWith(
+        expect.objectContaining({ nextRunDate: expectedNext }),
+      );
+    },
+  );
+
+  it('processes multiple due subscriptions independently', async () => {
+    subscriptionRepository.find.mockResolvedValue([
+      { id: 1, team: { id: 5 }, recipients: ['a@example.com'], interval: RecurringTransactionIntervalEnum.monthly, nextRunDate: '2026-09-01T00:00:00.000Z', active: true },
+      { id: 2, team: { id: 6 }, recipients: ['b@example.com'], interval: RecurringTransactionIntervalEnum.monthly, nextRunDate: '2026-09-01T00:00:00.000Z', active: true },
+    ]);
+    teamRepository.findOne.mockResolvedValue({
+      id: 5,
+      name: 'Team A',
+      alias: 'team-a',
+      transactions: [],
+      players: [],
+    });
+
+    await scheduler.runDueSubscriptions();
+
+    expect(mailService.cashboxExport).toHaveBeenCalledTimes(2);
+  });
+
+  it('continues processing when one subscription fails', async () => {
+    subscriptionRepository.find.mockResolvedValue([
+      { id: 1, team: { id: 5 }, recipients: ['a@example.com'], interval: RecurringTransactionIntervalEnum.monthly, nextRunDate: '2026-09-01T00:00:00.000Z', active: true },
+      { id: 2, team: { id: 6 }, recipients: ['b@example.com'], interval: RecurringTransactionIntervalEnum.monthly, nextRunDate: '2026-09-01T00:00:00.000Z', active: true },
+    ]);
+    teamRepository.findOne.mockResolvedValue({
+      id: 5,
+      name: 'Team A',
+      alias: 'team-a',
+      transactions: [],
+      players: [],
+    });
+    mailService.cashboxExport.mockRejectedValueOnce(new Error('smtp down'));
+
+    await scheduler.runDueSubscriptions();
+
+    expect(mailService.cashboxExport).toHaveBeenCalledTimes(2);
+    expect(subscriptionRepository.save).toHaveBeenCalledTimes(1);
+    expect(logger.error).toHaveBeenCalledWith({
+      event: 'cashbox_export_subscription_run_fail',
+      details: expect.stringContaining('subscriptionId=1 teamId=5'),
+      userId: -1,
+    });
+  });
+});

myteamwallet_backend/src/cashbox-export/cashbox-export.scheduler.ts

@@ -0,0 +1,95 @@
+import { Injectable } from '@nestjs/common';
+import { Cron, CronExpression } from '@nestjs/schedule';
+import { InjectRepository } from '@nestjs/typeorm';
+import { LoggingService } from 'src/database/logging/logging.service';
+import { Team } from 'src/teams/entities/team.entity';
+import { MailService } from 'src/mail/mail.service';
+import { LessThanOrEqual, Repository } from 'typeorm';
+import { RecurringTransactionIntervalEnum } from 'src/recurring-transactions/recurring-transaction-interval.enum';
+import { buildPdf, buildRows } from './cashbox-export.utils';
+import { CashboxExportSubscription } from './entities/cashbox-export-subscription.entity';
+
+const INTERVAL_MONTHS: Record<RecurringTransactionIntervalEnum, number> = {
+  [RecurringTransactionIntervalEnum.monthly]: 1,
+  [RecurringTransactionIntervalEnum.quarterly]: 3,
+  [RecurringTransactionIntervalEnum.yearly]: 12,
+};
+
+@Injectable()
+export class CashboxExportScheduler {
+  constructor(
+    @InjectRepository(CashboxExportSubscription)
+    private readonly subscriptionRepository: Repository<CashboxExportSubscription>,
+    @InjectRepository(Team)
+    private readonly teamRepository: Repository<Team>,
+    private readonly mailService: MailService,
+    private readonly logger: LoggingService,
+  ) {}
+
+  @Cron(CronExpression.EVERY_DAY_AT_4AM)
+  async runDueSubscriptions(): Promise<void> {
+    const today = new Date().toISOString();
+    const due = await this.subscriptionRepository.find({
+      where: { active: true, nextRunDate: LessThanOrEqual(today) },
+      relations: ['team'],
+    });
+
+    for (const subscription of due) {
+      try {
+        await this.runOne(subscription);
+      } catch (error) {
+        const errorMessage = error instanceof Error ? error.message : String(error);
+        await this.logger.error({
+          event: 'cashbox_export_subscription_run_fail',
+          details: `recurring subscription failed: subscriptionId=${subscription.id} teamId=${subscription.team.id}: ${errorMessage}`,
+          userId: -1,
+        });
+      }
+    }
+  }
+
+  private async runOne(subscription: CashboxExportSubscription): Promise<void> {
+    const team = await this.teamRepository.findOne({
+      where: { id: subscription.team.id },
+      relations: ['players', 'players.transactions', 'transactions'],
+    });
+    if (!team) return;
+
+    const { from, to } = this.periodBounds(subscription.nextRunDate, subscription.interval);
+    const rows = buildRows(team, from, to);
+    const pdf = await buildPdf(team, rows, from, to);
+    const filename = `kassenbuch_${team.alias}_${from}_${to}.pdf`;
+
+    await this.mailService.cashboxExport(
+      { to: subscription.recipients.join(', '), data: { teamName: team.name, from, to } },
+      pdf,
+      filename,
+    );
+
+    subscription.nextRunDate = this.advance(subscription.nextRunDate, subscription.interval);
+    await this.subscriptionRepository.save(subscription);
+
+    await this.logger.info({
+      event: 'cashbox_export_subscription_run',
+      details: `teamId=${team.id} recipients=${subscription.recipients.length} from=${from} to=${to}`,
+      userId: -1,
+    });
+  }
+
+  private periodBounds(
+    nextRunDate: string,
+    interval: RecurringTransactionIntervalEnum,
+  ): { from: string; to: string } {
+    const end = new Date(nextRunDate);
+    end.setUTCDate(end.getUTCDate() - 1);
+    const start = new Date(nextRunDate);
+    start.setUTCMonth(start.getUTCMonth() - INTERVAL_MONTHS[interval]);
+    return { from: start.toISOString().slice(0, 10), to: end.toISOString().slice(0, 10) };
+  }
+
+  private advance(nextRunDate: string, interval: RecurringTransactionIntervalEnum): string {
+    const date = new Date(nextRunDate);
+    date.setUTCMonth(date.getUTCMonth() + INTERVAL_MONTHS[interval]);
+    return date.toISOString();
+  }
+}

myteamwallet_backend/src/cashbox-export/cashbox-export.service.spec.ts

@@ -0,0 +1,107 @@
+import { BadRequestException, ForbiddenException, NotFoundException } from '@nestjs/common';
+import { TeamRolesEnum } from '../team-roles/team-roles.enum';
+import { CashboxExportService } from './cashbox-export.service';
+
+describe('CashboxExportService', () => {
+  const teamRepository = { findOne: jest.fn() };
+  const access = { assertAtLeast: jest.fn() };
+  const logger = { info: jest.fn() };
+  let service: CashboxExportService;
+  let callOrder: string[];
+
+  const team = {
+    id: 5,
+    name: 'Team A',
+    alias: 'team-a',
+    transactions: [
+      { date: '2026-08-05T00:00:00.000Z', amount: 10, note: 'Sponsoring', type: { name: 'credit' } },
+    ],
+    players: [],
+  };
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    callOrder = [];
+
+    access.assertAtLeast.mockImplementation(async () => {
+      callOrder.push('assertAtLeast');
+    });
+
+    teamRepository.findOne.mockImplementation(async () => {
+      callOrder.push('findOne');
+      return team;
+    });
+
+    service = new CashboxExportService(teamRepository as any, access as any, logger as any);
+  });
+
+  it('checks permission before loading data', async () => {
+    await service.exportForUser(5, 42, '2026-08-01', '2026-08-31', 'csv');
+
+    expect(access.assertAtLeast).toHaveBeenCalledWith(
+      42,
+      5,
+      'transaction_create_min_role',
+      TeamRolesEnum.scnd_treasurer,
+    );
+  });
+
+  it('calls assertAtLeast before findOne to enforce permission check ordering', async () => {
+    await service.exportForUser(5, 42, '2026-08-01', '2026-08-31', 'csv');
+
+    expect(callOrder).toEqual(['assertAtLeast', 'findOne']);
+  });
+
+  it('skips team lookup when permission check rejects', async () => {
+    access.assertAtLeast.mockRejectedValueOnce(new ForbiddenException('Insufficient permissions'));
+
+    await expect(
+      service.exportForUser(5, 42, '2026-08-01', '2026-08-31', 'csv'),
+    ).rejects.toBeInstanceOf(ForbiddenException);
+
+    expect(teamRepository.findOne).not.toHaveBeenCalled();
+  });
+
+  it('throws NotFoundException for an unknown team', async () => {
+    teamRepository.findOne.mockResolvedValueOnce(null);
+
+    await expect(
+      service.exportForUser(999, 42, '2026-08-01', '2026-08-31', 'csv'),
+    ).rejects.toBeInstanceOf(NotFoundException);
+  });
+
+  it('rejects a range where from is after to without querying the team', async () => {
+    await expect(
+      service.exportForUser(5, 42, '2026-08-31', '2026-08-01', 'csv'),
+    ).rejects.toBeInstanceOf(BadRequestException);
+
+    expect(access.assertAtLeast).not.toHaveBeenCalled();
+    expect(teamRepository.findOne).not.toHaveBeenCalled();
+  });
+
+  it('builds a CSV buffer with the correct content type and filename', async () => {
+    const result = await service.exportForUser(5, 42, '2026-08-01', '2026-08-31', 'csv');
+
+    expect(result.contentType).toBe('text/csv; charset=utf-8');
+    expect(result.filename).toBe('kassenbuch_team-a_2026-08-01_2026-08-31.csv');
+    expect(result.buffer.toString('utf-8')).toContain('Sponsoring');
+  });
+
+  it('builds a PDF buffer with the correct content type and filename', async () => {
+    const result = await service.exportForUser(5, 42, '2026-08-01', '2026-08-31', 'pdf');
+
+    expect(result.contentType).toBe('application/pdf');
+    expect(result.filename).toBe('kassenbuch_team-a_2026-08-01_2026-08-31.pdf');
+    expect(result.buffer.subarray(0, 5).toString('utf-8')).toBe('%PDF-');
+  });
+
+  it('logs a cashbox_export_download event after a successful export', async () => {
+    await service.exportForUser(5, 42, '2026-08-01', '2026-08-31', 'csv');
+
+    expect(logger.info).toHaveBeenCalledWith({
+      event: 'cashbox_export_download',
+      details: 'teamId=5 format=csv from=2026-08-01 to=2026-08-31',
+      userId: 42,
+    });
+  });
+});

myteamwallet_backend/src/cashbox-export/cashbox-export.service.ts

@@ -0,0 +1,70 @@
+import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { LoggingService } from 'src/database/logging/logging.service';
+import { TeamRolesEnum } from 'src/team-roles/team-roles.enum';
+import { Team } from 'src/teams/entities/team.entity';
+import { TeamAccessService } from 'src/teams/team-access.service';
+import { Repository } from 'typeorm';
+import { buildCsv, buildPdf, buildRows } from './cashbox-export.utils';
+
+@Injectable()
+export class CashboxExportService {
+  constructor(
+    @InjectRepository(Team)
+    private readonly teamRepository: Repository<Team>,
+    private readonly access: TeamAccessService,
+    private readonly logger: LoggingService,
+  ) {}
+
+  async exportForUser(
+    teamId: number,
+    userId: number,
+    from: string,
+    to: string,
+    format: 'csv' | 'pdf',
+  ): Promise<{ buffer: Buffer; contentType: string; filename: string }> {
+    if (from > to) {
+      throw new BadRequestException(
+        'Der Startzeitraum darf nicht nach dem Endzeitraum liegen.',
+      );
+    }
+    await this.access.assertAtLeast(
+      userId,
+      teamId,
+      'transaction_create_min_role',
+      TeamRolesEnum.scnd_treasurer,
+    );
+    const team = await this.teamRepository.findOne({
+      where: { id: teamId },
+      relations: ['players', 'players.transactions', 'transactions'],
+    });
+    if (!team) throw new NotFoundException('Team nicht gefunden.');
+
+    const rows = buildRows(team, from, to);
+
+    if (format === 'csv') {
+      const result = {
+        buffer: Buffer.from(buildCsv(rows), 'utf-8'),
+        contentType: 'text/csv; charset=utf-8',
+        filename: `kassenbuch_${team.alias}_${from}_${to}.csv`,
+      };
+      await this.logger.info({
+        event: 'cashbox_export_download',
+        details: `teamId=${teamId} format=${format} from=${from} to=${to}`,
+        userId,
+      });
+      return result;
+    }
+    const result = {
+      buffer: await buildPdf(team, rows, from, to),
+      contentType: 'application/pdf',
+      filename: `kassenbuch_${team.alias}_${from}_${to}.pdf`,
+    };
+    await this.logger.info({
+      event: 'cashbox_export_download',
+      details: `teamId=${teamId} format=${format} from=${from} to=${to}`,
+      userId,
+    });
+    return result;
+  }
+}

myteamwallet_backend/src/cashbox-export/cashbox-export.utils.spec.ts

@@ -0,0 +1,192 @@
+import { buildCsv, buildPdf, buildRows } from './cashbox-export.utils';
+
+describe('buildRows', () => {
+  const team = (overrides: Partial<{ transactions: any[]; players: any[] }> = {}) => ({
+    id: 5,
+    name: 'Team A',
+    alias: 'team-a',
+    transactions: [],
+    players: [],
+    ...overrides,
+  });
+
+  it('includes team-wallet credit and expense rows as "Teamkasse"', () => {
+    const rows = buildRows(
+      team({
+        transactions: [
+          { date: '2026-08-05T00:00:00.000Z', amount: 100, note: 'Sponsoring', type: { name: 'credit' } },
+          { date: '2026-08-10T00:00:00.000Z', amount: -20, note: 'Bälle', type: { name: 'expense' } },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows).toEqual([
+      { date: '2026-08-05T00:00:00.000Z', type: 'credit', who: 'Teamkasse', note: 'Sponsoring', amount: 100, runningTotal: 100 },
+      { date: '2026-08-10T00:00:00.000Z', type: 'expense', who: 'Teamkasse', note: 'Bälle', amount: -20, runningTotal: 80 },
+    ]);
+  });
+
+  it('includes only "payment" player transactions, excluding fee/levy/fine', () => {
+    const rows = buildRows(
+      team({
+        players: [
+          {
+            firstName: 'Alex',
+            lastName: 'Muster',
+            transactions: [
+              { date: '2026-08-03T00:00:00.000Z', amount: 10, note: 'Bar bezahlt', type: { name: 'payment' } },
+              { date: '2026-08-04T00:00:00.000Z', amount: 15, note: 'Monatsbeitrag', type: { name: 'fee' } },
+            ],
+          },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows).toEqual([
+      { date: '2026-08-03T00:00:00.000Z', type: 'payment', who: 'Alex Muster', note: 'Bar bezahlt', amount: 10, runningTotal: 10 },
+    ]);
+  });
+
+  it('excludes rows outside the [from, to] range and sorts the rest chronologically', () => {
+    const rows = buildRows(
+      team({
+        transactions: [
+          { date: '2026-07-31T23:59:00.000Z', amount: 5, note: 'zu früh', type: { name: 'credit' } },
+          { date: '2026-09-01T00:00:01.000Z', amount: 5, note: 'zu spät', type: { name: 'credit' } },
+          { date: '2026-08-20T00:00:00.000Z', amount: 5, note: 'zweitens', type: { name: 'credit' } },
+          { date: '2026-08-01T00:00:00.000Z', amount: 5, note: 'erstens', type: { name: 'credit' } },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows.map((row) => row.note)).toEqual(['erstens', 'zweitens']);
+  });
+
+  it('returns an empty array when nothing falls in range', () => {
+    const rows = buildRows(team() as any, '2026-08-01', '2026-08-31');
+    expect(rows).toEqual([]);
+  });
+
+  it('skips transactions with null type and includes valid ones', () => {
+    const rows = buildRows(
+      team({
+        transactions: [
+          { date: '2026-08-05T00:00:00.000Z', amount: 100, note: 'Valid credit', type: { name: 'credit' } },
+          { date: '2026-08-06T00:00:00.000Z', amount: 50, note: 'Null type team wallet', type: null },
+        ],
+        players: [
+          {
+            firstName: 'Bob',
+            lastName: 'Smith',
+            transactions: [
+              { date: '2026-08-07T00:00:00.000Z', amount: 20, note: 'Valid payment', type: { name: 'payment' } },
+              { date: '2026-08-08T00:00:00.000Z', amount: 30, note: 'Null type player', type: null },
+            ],
+          },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows).toEqual([
+      { date: '2026-08-05T00:00:00.000Z', type: 'credit', who: 'Teamkasse', note: 'Valid credit', amount: 100, runningTotal: 100 },
+      { date: '2026-08-07T00:00:00.000Z', type: 'payment', who: 'Bob Smith', note: 'Valid payment', amount: 20, runningTotal: 120 },
+    ]);
+  });
+});
+
+describe('buildCsv', () => {
+  it('renders the header and formatted rows with German decimals', () => {
+    const csv = buildCsv([
+      { date: '2026-08-05T00:00:00.000Z', type: 'payment', who: 'Alex Muster', note: 'Bar bezahlt', amount: 10, runningTotal: 10 },
+      { date: '2026-08-10T00:00:00.000Z', type: 'expense', who: 'Teamkasse', note: 'Bälle', amount: -20.5, runningTotal: -10.5 },
+    ]);
+
+    expect(csv).toBe(
+      'Datum;Typ;Wer;Notiz;Betrag;Periodensaldo\r\n' +
+        '2026-08-05;Zahlung;Alex Muster;Bar bezahlt;10,00;10,00\r\n' +
+        '2026-08-10;Ausgabe;Teamkasse;Bälle;-20,50;-10,50',
+    );
+  });
+
+  it('quotes notes containing a semicolon and escapes embedded quotes', () => {
+    const csv = buildCsv([
+      { date: '2026-08-05T00:00:00.000Z', type: 'credit', who: 'Teamkasse', note: 'Spende; "danke"', amount: 5, runningTotal: 5 },
+    ]);
+
+    expect(csv).toBe(
+      'Datum;Typ;Wer;Notiz;Betrag;Periodensaldo\r\n' +
+        '2026-08-05;Guthaben;Teamkasse;"Spende; ""danke""";5,00;5,00',
+    );
+  });
+
+  it('shows a placeholder row when there are no bookings', () => {
+    const csv = buildCsv([]);
+    expect(csv).toBe(
+      'Datum;Typ;Wer;Notiz;Betrag;Periodensaldo\r\nKeine Buchungen im gewählten Zeitraum',
+    );
+  });
+
+  it('formats negative-zero as positive zero', () => {
+    const csv = buildCsv([
+      { date: '2026-08-05T00:00:00.000Z', type: 'expense', who: 'Teamkasse', note: 'Test', amount: -0.001, runningTotal: 0 },
+    ]);
+
+    expect(csv).toBe(
+      'Datum;Typ;Wer;Notiz;Betrag;Periodensaldo\r\n' +
+        '2026-08-05;Ausgabe;Teamkasse;Test;0,00;0,00',
+    );
+  });
+
+  it('rounds half-cent boundaries correctly', () => {
+    const csv = buildCsv([
+      { date: '2026-08-05T00:00:00.000Z', type: 'payment', who: 'Alex Muster', note: 'Test', amount: 1.005, runningTotal: 1.005 },
+    ]);
+
+    expect(csv).toBe(
+      'Datum;Typ;Wer;Notiz;Betrag;Periodensaldo\r\n' +
+        '2026-08-05;Zahlung;Alex Muster;Test;1,01;1,01',
+    );
+  });
+
+  it('rounds negative half-cent boundaries correctly', () => {
+    const csv = buildCsv([
+      { date: '2026-08-05T00:00:00.000Z', type: 'expense', who: 'Teamkasse', note: 'Test', amount: -1.005, runningTotal: -1.005 },
+    ]);
+
+    expect(csv).toBe(
+      'Datum;Typ;Wer;Notiz;Betrag;Periodensaldo\r\n' +
+        '2026-08-05;Ausgabe;Teamkasse;Test;-1,01;-1,01',
+    );
+  });
+});
+
+describe('buildPdf', () => {
+  it('produces a non-empty valid PDF buffer', async () => {
+    const buffer = await buildPdf(
+      { name: 'Team A' } as any,
+      [
+        { date: '2026-08-05T00:00:00.000Z', type: 'payment', who: 'Alex Muster', note: 'Bar bezahlt', amount: 10, runningTotal: 10 },
+      ],
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(Buffer.isBuffer(buffer)).toBe(true);
+    expect(buffer.length).toBeGreaterThan(100);
+    expect(buffer.subarray(0, 5).toString('utf-8')).toBe('%PDF-');
+  });
+
+  it('still produces a valid PDF when there are no rows', async () => {
+    const buffer = await buildPdf({ name: 'Team A' } as any, [], '2026-08-01', '2026-08-31');
+
+    expect(buffer.subarray(0, 5).toString('utf-8')).toBe('%PDF-');
+  });
+});

myteamwallet_backend/src/cashbox-export/cashbox-export.utils.ts

@@ -0,0 +1,135 @@
+import { Team } from 'src/teams/entities/team.entity';
+import PDFDocument = require('pdfkit');
+
+export interface CashboxExportRow {
+  date: string;
+  type: string;
+  who: string;
+  note: string;
+  amount: number;
+  runningTotal: number;
+}
+
+interface RawRow {
+  date: string;
+  type: string;
+  who: string;
+  note: string;
+  amount: number;
+}
+
+export function buildRows(team: Team, from: string, to: string): CashboxExportRow[] {
+  const fromTime = new Date(`${from}T00:00:00.000Z`).getTime();
+  const toTime = new Date(`${to}T23:59:59.999Z`).getTime();
+
+  const raw: RawRow[] = [];
+
+  for (const transaction of team.transactions ?? []) {
+    if (!transaction.type) continue;
+    raw.push({
+      date: transaction.date,
+      type: transaction.type.name,
+      who: 'Teamkasse',
+      note: transaction.note,
+      amount: Number(transaction.amount),
+    });
+  }
+
+  for (const player of team.players ?? []) {
+    for (const transaction of player.transactions ?? []) {
+      if (!transaction.type || transaction.type.name !== 'payment') continue;
+      raw.push({
+        date: transaction.date,
+        type: transaction.type.name,
+        who: `${player.firstName} ${player.lastName}`,
+        note: transaction.note,
+        amount: Number(transaction.amount),
+      });
+    }
+  }
+
+  const filtered = raw
+    .filter((row) => {
+      const time = new Date(row.date).getTime();
+      return time >= fromTime && time <= toTime;
+    })
+    .sort((a, b) => (a.date < b.date ? -1 : a.date > b.date ? 1 : 0));
+
+  let runningTotal = 0;
+  return filtered.map((row) => {
+    runningTotal += row.amount;
+    return { ...row, runningTotal };
+  });
+}
+
+const TYPE_LABELS: Record<string, string> = {
+  payment: 'Zahlung',
+  credit: 'Guthaben',
+  expense: 'Ausgabe',
+};
+
+function formatGermanAmount(value: number): string {
+  const rounded = Math.sign(value) * Math.round((Math.abs(value) + Number.EPSILON) * 100) / 100;
+  const normalized = rounded === 0 ? 0 : rounded;
+  return normalized.toFixed(2).replace('.', ',');
+}
+
+function escapeCsvField(value: string): string {
+  if (/[;"\n\r]/.test(value)) {
+    return `"${value.replace(/"/g, '""')}"`;
+  }
+  return value;
+}
+
+export function buildCsv(rows: CashboxExportRow[]): string {
+  const lines = ['Datum;Typ;Wer;Notiz;Betrag;Periodensaldo'];
+  if (rows.length === 0) {
+    lines.push('Keine Buchungen im gewählten Zeitraum');
+  } else {
+    for (const row of rows) {
+      lines.push(
+        [
+          row.date.slice(0, 10),
+          TYPE_LABELS[row.type] ?? row.type,
+          escapeCsvField(row.who),
+          escapeCsvField(row.note),
+          formatGermanAmount(row.amount),
+          formatGermanAmount(row.runningTotal),
+        ].join(';'),
+      );
+    }
+  }
+  return lines.join('\r\n');
+}
+
+export function buildPdf(
+  team: Pick<Team, 'name'>,
+  rows: CashboxExportRow[],
+  from: string,
+  to: string,
+): Promise<Buffer> {
+  return new Promise((resolve, reject) => {
+    const doc = new PDFDocument({ margin: 40 });
+    const chunks: Buffer[] = [];
+    doc.on('data', (chunk) => chunks.push(chunk));
+    doc.on('end', () => resolve(Buffer.concat(chunks)));
+    doc.on('error', reject);
+
+    doc.fontSize(16).text(`Kassenbuch ${team.name}`);
+    doc.fontSize(10).text(`Zeitraum: ${from} bis ${to}`);
+    doc.moveDown();
+
+    if (rows.length === 0) {
+      doc.text('Keine Buchungen im gewählten Zeitraum.');
+    } else {
+      for (const row of rows) {
+        doc.text(
+          `${row.date.slice(0, 10)}  ${TYPE_LABELS[row.type] ?? row.type}  ${row.who}  ${row.note}  ` +
+            `${formatGermanAmount(row.amount)} €  Saldo: ${formatGermanAmount(row.runningTotal)} €`,
+        );
+      }
+    }
+
+    doc.end();
+  });
+}

myteamwallet_backend/src/cashbox-export/dto/cashbox-export-query.dto.ts

@@ -0,0 +1,12 @@
+import { IsIn, Matches } from 'class-validator';
+
+export class CashboxExportQueryDto {
+  @Matches(/^\d{4}-\d{2}-\d{2}$/)
+  from: string;
+
+  @Matches(/^\d{4}-\d{2}-\d{2}$/)
+  to: string;
+
+  @IsIn(['csv', 'pdf'])
+  format: 'csv' | 'pdf';
+}

myteamwallet_backend/src/cashbox-export/dto/cashbox-export-subscription-response.dto.ts

@@ -0,0 +1,8 @@
+import { RecurringTransactionIntervalEnum } from 'src/recurring-transactions/recurring-transaction-interval.enum';
+
+export class CashboxExportSubscriptionResponseDTO {
+  recipients: string[];
+  interval: RecurringTransactionIntervalEnum;
+  active: boolean;
+  nextRunDate: string | null;
+}

myteamwallet_backend/src/cashbox-export/dto/upsert-cashbox-export-subscription.dto.ts

@@ -0,0 +1,18 @@
+import { ApiProperty } from '@nestjs/swagger';
+import { IsArray, IsBoolean, IsEmail, IsIn } from 'class-validator';
+import { RecurringTransactionIntervalEnum } from 'src/recurring-transactions/recurring-transaction-interval.enum';
+
+export class UpsertCashboxExportSubscriptionDTO {
+  @ApiProperty({ example: ['vorstand@example.com'] })
+  @IsArray()
+  @IsEmail({}, { each: true })
+  recipients: string[];
+
+  @ApiProperty({ enum: RecurringTransactionIntervalEnum })
+  @IsIn(Object.values(RecurringTransactionIntervalEnum))
+  interval: RecurringTransactionIntervalEnum;
+
+  @ApiProperty({ example: true })
+  @IsBoolean()
+  active: boolean;
+}

myteamwallet_backend/src/cashbox-export/entities/cashbox-export-subscription.entity.ts

@@ -0,0 +1,26 @@
+import { Column, Entity, JoinColumn, OneToOne, PrimaryGeneratedColumn } from 'typeorm';
+import { EntityHelper } from 'src/utils/entity-helper';
+import { Team } from 'src/teams/entities/team.entity';
+import { RecurringTransactionIntervalEnum } from 'src/recurring-transactions/recurring-transaction-interval.enum';
+
+@Entity()
+export class CashboxExportSubscription extends EntityHelper {
+  @PrimaryGeneratedColumn()
+  id: number;
+
+  @OneToOne(() => Team, { eager: false })
+  @JoinColumn()
+  team: Team;
+
+  @Column({ type: 'simple-array', default: '' })
+  recipients: string[];
+
+  @Column()
+  interval: RecurringTransactionIntervalEnum;
+
+  @Column({ default: false })
+  active: boolean;
+
+  @Column({ nullable: true })
+  nextRunDate: string | null;
+}

myteamwallet_backend/src/database/logging/model/logging-event.type.ts

@@ -30,6 +30,10 @@ export type LOGEVENT =
   | 'recurring_transaction_create'
   | 'recurring_transaction_update'
   | 'recurring_transaction_delete'
-  | 'recurring_transaction_run';
+  | 'recurring_transaction_run'
+  | 'cashbox_export_download'
+  | 'cashbox_export_subscription_update'
+  | 'cashbox_export_subscription_run'
+  | 'cashbox_export_subscription_run_fail';
 
 export type LOGLEVEL = 'FATAL' | 'ERROR' | 'WARN' | 'INFO' | 'DEBUG' | 'TRACE';

myteamwallet_backend/src/mail/mail-templates/cashbox-export.hbs

@@ -0,0 +1,5 @@
+{{#> layout}}
+<p>Hallo,</p>
+<p>im Anhang findest du den automatischen Kassenbuch-Export für <strong>{{teamName}}</strong> für den Zeitraum {{from}} bis {{to}}.</p>
+<p>Diese E-Mail wurde automatisch von TeamWallet verschickt und benötigt keine weitere Aktion.</p>
+{{/layout}}

myteamwallet_backend/src/mail/mail-templates/mail-templates.spec.ts

@@ -60,4 +60,20 @@ describe('mail templates rendering', () => {
     expect(html).toContain('Hallo,');
     expect(html).not.toContain('Hallo Max,');
   });
+
+  it('renders cashbox-export.hbs with team name and period', () => {
+    const source = fs.readFileSync(path.join(templatesDir, 'cashbox-export.hbs'), 'utf-8');
+    const html = Handlebars.compile(source, { strict: true })({
+      title: 'Kassenbuch-Export Team A',
+      year: 2026,
+      teamName: 'Team A',
+      from: '2026-08-01',
+      to: '2026-08-31',
+    });
+
+    expect(html).toContain('TeamWallet');
+    expect(html).toContain('Team A');
+    expect(html).toContain('2026-08-01');
+    expect(html).toContain('2026-08-31');
+  });
 });

myteamwallet_backend/src/mail/mail.service.spec.ts

@@ -58,4 +58,28 @@ describe('MailService', () => {
     const call = sendMail.mock.calls[0][0];
     expect(call.context.firstName).toBeUndefined();
   });
+
+  it('sends the cashbox export mail with the PDF attachment', async () => {
+    const attachment = Buffer.from('%PDF-1.4 fake');
+
+    await service.cashboxExport(
+      {
+        to: 'vorstand@example.com, kassier@example.com',
+        data: { teamName: 'Team A', from: '2026-08-01', to: '2026-08-31' },
+      },
+      attachment,
+      'kassenbuch_team-a_2026-08-01_2026-08-31.pdf',
+    );
+
+    expect(sendMail).toHaveBeenCalledTimes(1);
+    const call = sendMail.mock.calls[0][0];
+    expect(call.to).toBe('vorstand@example.com, kassier@example.com');
+    expect(call.template).toBe('cashbox-export');
+    expect(call.context.teamName).toBe('Team A');
+    expect(call.context.from).toBe('2026-08-01');
+    expect(call.context.to).toBe('2026-08-31');
+    expect(call.attachments).toEqual([
+      { filename: 'kassenbuch_team-a_2026-08-01_2026-08-31.pdf', content: attachment },
+    ]);
+  });
 });

myteamwallet_backend/src/mail/mail.service.ts

@@ -55,4 +55,24 @@ export class MailService {
       },
     });
   }
+
+  async cashboxExport(
+    mailData: MailData<{ teamName: string; from: string; to: string }>,
+    attachment: Buffer,
+    filename: string,
+  ): Promise<void> {
+    await this.mailerService.sendMail({
+      to: mailData.to,
+      subject: `Kassenbuch-Export ${mailData.data.teamName}`,
+      template: 'cashbox-export',
+      context: {
+        title: `Kassenbuch-Export ${mailData.data.teamName}`,
+        year: new Date().getFullYear(),
+        teamName: mailData.data.teamName,
+        from: mailData.data.from,
+        to: mailData.data.to,
+      },
+      attachments: [{ filename, content: attachment }],
+    });
+  }
 }

myteamwallet_frontend_modern/src/app/core/team/cashbox-export-api.spec.ts

@@ -0,0 +1,46 @@
+import { provideHttpClient } from '@angular/common/http';
+import { HttpTestingController, provideHttpClientTesting } from '@angular/common/http/testing';
+import { TestBed } from '@angular/core/testing';
+import { environment } from '../../../environments/environment';
+import { CashboxExportApi } from './cashbox-export-api';
+
+describe('CashboxExportApi', () => {
+  let api: CashboxExportApi;
+  let httpMock: HttpTestingController;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [provideHttpClient(), provideHttpClientTesting()],
+    });
+    api = TestBed.inject(CashboxExportApi);
+    httpMock = TestBed.inject(HttpTestingController);
+  });
+
+  afterEach(() => httpMock.verify());
+
+  it('downloads the cashbox export as a blob with query params', () => {
+    api.exportCashbox(5, '2026-08-01', '2026-08-31', 'csv').subscribe();
+    const request = httpMock.expectOne(
+      `${environment.apiUrl}cashbox-export/5?from=2026-08-01&to=2026-08-31&format=csv`,
+    );
+    expect(request.request.method).toBe('GET');
+    expect(request.request.responseType).toBe('blob');
+    request.flush(new Blob(['csv content']));
+  });
+
+  it('loads the subscription', () => {
+    api.getSubscription(5).subscribe();
+    const request = httpMock.expectOne(`${environment.apiUrl}cashbox-export/5/subscription`);
+    expect(request.request.method).toBe('GET');
+    request.flush({ recipients: [], interval: 'monthly', active: false, nextRunDate: null });
+  });
+
+  it('updates the subscription', () => {
+    const update = { recipients: ['a@example.com'], interval: 'monthly' as const, active: true };
+    api.updateSubscription(5, update).subscribe();
+    const request = httpMock.expectOne(`${environment.apiUrl}cashbox-export/5/subscription`);
+    expect(request.request.method).toBe('PUT');
+    expect(request.request.body).toEqual(update);
+    request.flush({ ...update, nextRunDate: '2026-09-01T00:00:00.000Z' });
+  });
+});

myteamwallet_frontend_modern/src/app/core/team/cashbox-export-api.ts

@@ -0,0 +1,36 @@
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { Injectable, inject } from '@angular/core';
+import { Observable } from 'rxjs';
+import { environment } from '../../../environments/environment';
+import {
+  CashboxExportFormat,
+  CashboxExportSubscription,
+  UpdateCashboxExportSubscription,
+} from '../../models/cashbox-export.model';
+
+@Injectable({ providedIn: 'root' })
+export class CashboxExportApi {
+  private readonly http = inject(HttpClient);
+  private readonly baseUrl = `${environment.apiUrl}cashbox-export`;
+
+  exportCashbox(
+    teamId: number,
+    from: string,
+    to: string,
+    format: CashboxExportFormat,
+  ): Observable<Blob> {
+    const params = new HttpParams().set('from', from).set('to', to).set('format', format);
+    return this.http.get(`${this.baseUrl}/${teamId}`, { params, responseType: 'blob' });
+  }
+
+  getSubscription(teamId: number): Observable<CashboxExportSubscription> {
+    return this.http.get<CashboxExportSubscription>(`${this.baseUrl}/${teamId}/subscription`);
+  }
+
+  updateSubscription(
+    teamId: number,
+    dto: UpdateCashboxExportSubscription,
+  ): Observable<CashboxExportSubscription> {
+    return this.http.put<CashboxExportSubscription>(`${this.baseUrl}/${teamId}/subscription`, dto);
+  }
+}

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox-export-dialog/cashbox-export-dialog.spec.ts

@@ -0,0 +1,71 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
+import { of, throwError } from 'rxjs';
+import { CashboxExportApi } from '../../../../core/team/cashbox-export-api';
+import { FileDownloadService } from '../../../../shared/file-download/file-download.service';
+import { CashboxExportDialog } from './cashbox-export-dialog';
+
+describe('CashboxExportDialog', () => {
+  let fixture: ComponentFixture<CashboxExportDialog>;
+  let exportCashbox: ReturnType<typeof vi.fn>;
+  let save: ReturnType<typeof vi.fn>;
+  let dialogRef: { close: ReturnType<typeof vi.fn> };
+
+  beforeEach(async () => {
+    exportCashbox = vi.fn(() => of(new Blob(['csv content'])));
+    save = vi.fn();
+    dialogRef = { close: vi.fn() };
+
+    await TestBed.configureTestingModule({
+      imports: [CashboxExportDialog],
+      providers: [
+        { provide: MAT_DIALOG_DATA, useValue: { teamId: 5 } },
+        { provide: MatDialogRef, useValue: dialogRef },
+        { provide: CashboxExportApi, useValue: { exportCashbox } },
+        { provide: FileDownloadService, useValue: { save } },
+      ],
+    }).compileComponents();
+    fixture = TestBed.createComponent(CashboxExportDialog);
+    fixture.detectChanges();
+  });
+
+  it('keeps the download disabled until from <= to', () => {
+    fixture.componentInstance['form'].setValue({ from: '2026-08-31', to: '2026-08-01', format: 'csv' });
+    expect(fixture.componentInstance['form'].invalid).toBe(true);
+
+    fixture.componentInstance['download']();
+    expect(exportCashbox).not.toHaveBeenCalled();
+  });
+
+  it('downloads the file and closes the dialog on success', () => {
+    fixture.componentInstance['form'].setValue({ from: '2026-08-01', to: '2026-08-31', format: 'csv' });
+
+    fixture.componentInstance['download']();
+
+    expect(exportCashbox).toHaveBeenCalledWith(5, '2026-08-01', '2026-08-31', 'csv');
+    expect(save).toHaveBeenCalledWith(expect.any(Blob), 'kassenbuch_2026-08-01_2026-08-31.csv');
+    expect(dialogRef.close).toHaveBeenCalled();
+  });
+
+  it('displays error message and does not close dialog on export failure', () => {
+    exportCashbox = vi.fn(() => throwError(() => new Error('network error')));
+    TestBed.resetTestingModule();
+    TestBed.configureTestingModule({
+      imports: [CashboxExportDialog],
+      providers: [
+        { provide: MAT_DIALOG_DATA, useValue: { teamId: 5 } },
+        { provide: MatDialogRef, useValue: dialogRef },
+        { provide: CashboxExportApi, useValue: { exportCashbox } },
+        { provide: FileDownloadService, useValue: { save } },
+      ],
+    });
+    fixture = TestBed.createComponent(CashboxExportDialog);
+    fixture.detectChanges();
+
+    fixture.componentInstance['form'].setValue({ from: '2026-08-01', to: '2026-08-31', format: 'csv' });
+    fixture.componentInstance['download']();
+
+    expect(dialogRef.close).not.toHaveBeenCalled();
+    expect(fixture.componentInstance['downloadError']()).toBe('Export konnte nicht heruntergeladen werden.');
+  });
+});

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox-export-dialog/cashbox-export-dialog.ts

@@ -0,0 +1,98 @@
+import { Component, inject, signal } from '@angular/core';
+import { FormBuilder, ReactiveFormsModule, ValidationErrors, ValidatorFn, Validators } from '@angular/forms';
+import { MatButtonModule } from '@angular/material/button';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material/dialog';
+import { MatFormFieldModule } from '@angular/material/form-field';
+import { MatInputModule } from '@angular/material/input';
+import { MatSelectModule } from '@angular/material/select';
+import { CashboxExportApi } from '../../../../core/team/cashbox-export-api';
+import { CashboxExportFormat } from '../../../../models/cashbox-export.model';
+import { FileDownloadService } from '../../../../shared/file-download/file-download.service';
+
+const rangeValid: ValidatorFn = (group): ValidationErrors | null => {
+  const from = group.get('from')?.value;
+  const to = group.get('to')?.value;
+  return from && to && from > to ? { rangeInvalid: true } : null;
+};
+
+@Component({
+  selector: 'app-cashbox-export-dialog',
+  imports: [
+    ReactiveFormsModule,
+    MatButtonModule,
+    MatDialogModule,
+    MatFormFieldModule,
+    MatInputModule,
+    MatSelectModule,
+  ],
+  template: `
+    <h2 mat-dialog-title>Kassenbuch exportieren</h2>
+    <form [formGroup]="form" (ngSubmit)="download()">
+      <mat-dialog-content>
+        @if (downloadError()) {
+          <p class="error-message" role="alert">{{ downloadError() }}</p>
+        }
+        <mat-form-field appearance="outline">
+          <mat-label>Von</mat-label>
+          <input matInput formControlName="from" type="date" />
+        </mat-form-field>
+        <mat-form-field appearance="outline">
+          <mat-label>Bis</mat-label>
+          <input matInput formControlName="to" type="date" />
+        </mat-form-field>
+        <mat-form-field appearance="outline">
+          <mat-label>Format</mat-label>
+          <mat-select formControlName="format">
+            <mat-option value="csv">CSV</mat-option>
+            <mat-option value="pdf">PDF</mat-option>
+          </mat-select>
+        </mat-form-field>
+      </mat-dialog-content>
+      <mat-dialog-actions align="end">
+        <button mat-button type="button" (click)="dialogRef.close()">Abbrechen</button>
+        <button mat-flat-button type="submit" [disabled]="form.invalid">Herunterladen</button>
+      </mat-dialog-actions>
+    </form>
+  `,
+  styles: `
+    .error-message {
+      padding: 12px 16px;
+      border-radius: 12px;
+      color: var(--mat-sys-error);
+      background: var(--mat-sys-error-container);
+    }
+  `,
+})
+export class CashboxExportDialog {
+  protected readonly dialogRef = inject(MatDialogRef<CashboxExportDialog>);
+  private readonly data = inject<{ teamId: number }>(MAT_DIALOG_DATA);
+  private readonly formBuilder = inject(FormBuilder);
+  private readonly api = inject(CashboxExportApi);
+  private readonly fileDownload = inject(FileDownloadService);
+
+  protected readonly downloadError = signal<string | null>(null);
+
+  protected readonly form = this.formBuilder.nonNullable.group(
+    {
+      from: ['', Validators.required],
+      to: ['', Validators.required],
+      format: ['csv' as CashboxExportFormat, Validators.required],
+    },
+    { validators: rangeValid },
+  );
+
+  protected download(): void {
+    if (this.form.invalid) return;
+    this.downloadError.set(null);
+    const { from, to, format } = this.form.getRawValue();
+    this.api.exportCashbox(this.data.teamId, from, to, format).subscribe({
+      next: (blob) => {
+        this.fileDownload.save(blob, `kassenbuch_${from}_${to}.${format}`);
+        this.dialogRef.close();
+      },
+      error: () => {
+        this.downloadError.set('Export konnte nicht heruntergeladen werden.');
+      },
+    });
+  }
+}

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox-export-subscription-dialog/cashbox-export-subscription-dialog.html

@@ -0,0 +1,36 @@
+<h2 mat-dialog-title>Automatischen Versand einrichten</h2>
+<mat-dialog-content>
+  @if (loadError()) {
+    <p class="error-message" role="alert">{{ loadError() }}</p>
+  }
+  @if (saveError()) {
+    <p class="error-message" role="alert">{{ saveError() }}</p>
+  }
+  <mat-form-field appearance="outline">
+    <mat-label>E-Mail-Adresse hinzufügen</mat-label>
+    <input matInput #recipientInput (keydown.enter)="addRecipient(recipientInput.value); recipientInput.value = ''" />
+  </mat-form-field>
+  <mat-chip-set>
+    @for (recipient of recipients(); track recipient) {
+      <mat-chip (removed)="removeRecipient(recipient)">
+        {{ recipient }}
+        <button matChipRemove><mat-icon>cancel</mat-icon></button>
+      </mat-chip>
+    }
+  </mat-chip-set>
+  <form [formGroup]="form">
+    <mat-form-field appearance="outline">
+      <mat-label>Intervall</mat-label>
+      <mat-select formControlName="interval">
+        <mat-option value="monthly">Monatlich</mat-option>
+        <mat-option value="quarterly">Quartalsweise</mat-option>
+        <mat-option value="yearly">Jährlich</mat-option>
+      </mat-select>
+    </mat-form-field>
+    <mat-slide-toggle formControlName="active">Aktiv</mat-slide-toggle>
+  </form>
+</mat-dialog-content>
+<mat-dialog-actions align="end">
+  <button mat-button type="button" (click)="dialogRef.close()">Abbrechen</button>
+  <button mat-flat-button type="button" (click)="save()">Speichern</button>
+</mat-dialog-actions>

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox-export-subscription-dialog/cashbox-export-subscription-dialog.scss

@@ -0,0 +1,6 @@
+.error-message {
+  padding: 12px 16px;
+  border-radius: 12px;
+  color: var(--mat-sys-error);
+  background: var(--mat-sys-error-container);
+}

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox-export-subscription-dialog/cashbox-export-subscription-dialog.spec.ts

@@ -0,0 +1,92 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
+import { of, throwError } from 'rxjs';
+import { CashboxExportApi } from '../../../../core/team/cashbox-export-api';
+import { CashboxExportSubscriptionDialog } from './cashbox-export-subscription-dialog';
+
+describe('CashboxExportSubscriptionDialog', () => {
+  let fixture: ComponentFixture<CashboxExportSubscriptionDialog>;
+  let getSubscription: ReturnType<typeof vi.fn>;
+  let updateSubscription: ReturnType<typeof vi.fn>;
+  let dialogRef: { close: ReturnType<typeof vi.fn> };
+
+  beforeEach(async () => {
+    getSubscription = vi.fn(() =>
+      of({ recipients: ['a@example.com'], interval: 'monthly', active: true, nextRunDate: '2026-09-01T00:00:00.000Z' }),
+    );
+    updateSubscription = vi.fn(() =>
+      of({ recipients: ['a@example.com', 'b@example.com'], interval: 'monthly', active: true, nextRunDate: '2026-09-01T00:00:00.000Z' }),
+    );
+    dialogRef = { close: vi.fn() };
+
+    await TestBed.configureTestingModule({
+      imports: [CashboxExportSubscriptionDialog],
+      providers: [
+        { provide: MAT_DIALOG_DATA, useValue: { teamId: 5 } },
+        { provide: MatDialogRef, useValue: dialogRef },
+        { provide: CashboxExportApi, useValue: { getSubscription, updateSubscription } },
+      ],
+    }).compileComponents();
+    fixture = TestBed.createComponent(CashboxExportSubscriptionDialog);
+    fixture.detectChanges();
+  });
+
+  it('loads the existing subscription into the form', () => {
+    expect(getSubscription).toHaveBeenCalledWith(5);
+    expect(fixture.componentInstance['recipients']()).toEqual(['a@example.com']);
+  });
+
+  it('rejects adding an invalid email', () => {
+    fixture.componentInstance['addRecipient']('not-an-email');
+    expect(fixture.componentInstance['recipients']()).toEqual(['a@example.com']);
+  });
+
+  it('adds a valid email and saves the updated recipient list', () => {
+    fixture.componentInstance['addRecipient']('b@example.com');
+    expect(fixture.componentInstance['recipients']()).toEqual(['a@example.com', 'b@example.com']);
+
+    fixture.componentInstance['save']();
+
+    expect(updateSubscription).toHaveBeenCalledWith(5, {
+      recipients: ['a@example.com', 'b@example.com'],
+      interval: 'monthly',
+      active: true,
+    });
+    expect(dialogRef.close).toHaveBeenCalled();
+  });
+
+  it('removes a recipient', () => {
+    fixture.componentInstance['removeRecipient']('a@example.com');
+    expect(fixture.componentInstance['recipients']()).toEqual([]);
+  });
+
+  it('handles getSubscription error by setting loadError', async () => {
+    getSubscription.mockReturnValueOnce(throwError(() => new Error('API error')));
+
+    await TestBed.resetTestingModule();
+    await TestBed.configureTestingModule({
+      imports: [CashboxExportSubscriptionDialog],
+      providers: [
+        { provide: MAT_DIALOG_DATA, useValue: { teamId: 5 } },
+        { provide: MatDialogRef, useValue: dialogRef },
+        { provide: CashboxExportApi, useValue: { getSubscription, updateSubscription } },
+      ],
+    }).compileComponents();
+
+    fixture = TestBed.createComponent(CashboxExportSubscriptionDialog);
+    fixture.detectChanges();
+
+    expect(fixture.componentInstance['loadError']()).toBe('Einstellungen konnten nicht geladen werden.');
+  });
+
+  it('handles updateSubscription error by setting saveError and not closing dialog', () => {
+    updateSubscription.mockReturnValueOnce(throwError(() => new Error('API error')));
+    dialogRef.close.mockClear();
+
+    fixture.componentInstance['addRecipient']('b@example.com');
+    fixture.componentInstance['save']();
+
+    expect(fixture.componentInstance['saveError']()).toBe('Speichern fehlgeschlagen.');
+    expect(dialogRef.close).not.toHaveBeenCalled();
+  });
+});

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox-export-subscription-dialog/cashbox-export-subscription-dialog.ts

@@ -0,0 +1,81 @@
+import { Component, inject, signal } from '@angular/core';
+import { FormBuilder, ReactiveFormsModule, Validators } from '@angular/forms';
+import { MatButtonModule } from '@angular/material/button';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material/dialog';
+import { MatChipsModule } from '@angular/material/chips';
+import { MatFormFieldModule } from '@angular/material/form-field';
+import { MatInputModule } from '@angular/material/input';
+import { MatSelectModule } from '@angular/material/select';
+import { MatSlideToggleModule } from '@angular/material/slide-toggle';
+import { MatIconModule } from '@angular/material/icon';
+import { CashboxExportApi } from '../../../../core/team/cashbox-export-api';
+import { RecurringTransactionInterval } from '../../../../models/recurring-transaction.model';
+
+const EMAIL_PATTERN = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+
+@Component({
+  selector: 'app-cashbox-export-subscription-dialog',
+  imports: [
+    ReactiveFormsModule,
+    MatButtonModule,
+    MatChipsModule,
+    MatDialogModule,
+    MatFormFieldModule,
+    MatIconModule,
+    MatInputModule,
+    MatSelectModule,
+    MatSlideToggleModule,
+  ],
+  templateUrl: './cashbox-export-subscription-dialog.html',
+  styleUrl: './cashbox-export-subscription-dialog.scss',
+})
+export class CashboxExportSubscriptionDialog {
+  protected readonly dialogRef = inject(MatDialogRef<CashboxExportSubscriptionDialog>);
+  private readonly data = inject<{ teamId: number }>(MAT_DIALOG_DATA);
+  private readonly formBuilder = inject(FormBuilder);
+  private readonly api = inject(CashboxExportApi);
+
+  protected readonly recipients = signal<string[]>([]);
+  protected readonly loadError = signal<string | null>(null);
+  protected readonly saveError = signal<string | null>(null);
+  protected readonly form = this.formBuilder.nonNullable.group({
+    interval: ['monthly' as RecurringTransactionInterval, Validators.required],
+    active: [false],
+  });
+
+  constructor() {
+    this.api.getSubscription(this.data.teamId).subscribe({
+      next: (subscription) => {
+        this.recipients.set(subscription.recipients);
+        this.form.setValue({ interval: subscription.interval, active: subscription.active });
+      },
+      error: () => {
+        this.loadError.set('Einstellungen konnten nicht geladen werden.');
+      },
+    });
+  }
+
+  protected addRecipient(value: string): void {
+    const trimmed = value.trim();
+    if (!EMAIL_PATTERN.test(trimmed) || this.recipients().includes(trimmed)) return;
+    this.recipients.set([...this.recipients(), trimmed]);
+  }
+
+  protected removeRecipient(value: string): void {
+    this.recipients.set(this.recipients().filter((entry) => entry !== value));
+  }
+
+  protected save(): void {
+    if (this.form.invalid) return;
+    this.saveError.set(null);
+    const { interval, active } = this.form.getRawValue();
+    this.api
+      .updateSubscription(this.data.teamId, { recipients: this.recipients(), interval, active })
+      .subscribe({
+        next: () => this.dialogRef.close(),
+        error: () => {
+          this.saveError.set('Speichern fehlgeschlagen.');
+        },
+      });
+  }
+}

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox.html

@@ -178,6 +178,25 @@
         }
       </mat-select>
     </mat-form-field>
+    @if (canBook()) {
+      <button mat-stroked-button type="button" (click)="openExportDialog()">
+        <mat-icon>download</mat-icon>
+        Export
+      </button>
+      <button
+        mat-icon-button
+        type="button"
+        [matMenuTriggerFor]="exportMenu"
+        aria-label="Weitere Exportoptionen"
+      >
+        <mat-icon>more_vert</mat-icon>
+      </button>
+      <mat-menu #exportMenu="matMenu">
+        <button mat-menu-item (click)="openExportSubscriptionDialog()">
+          Automatischen Versand einrichten
+        </button>
+      </mat-menu>
+    }
   </div>
 
   <ag-grid-angular

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox.spec.ts

@@ -8,6 +8,7 @@ import { PenaltyApi } from '../../../core/team/penalty-api';
 import { TeamStore } from '../../../core/team/team-store';
 import { TransactionsApi } from '../../../core/team/transactions-api';
 import { Cashbox } from './cashbox';
+import { CashboxExportDialog } from './cashbox-export-dialog/cashbox-export-dialog';
 
 describe('Cashbox', () => {
   const team = {
@@ -281,4 +282,38 @@ describe('Cashbox', () => {
       expect.objectContaining({ amount: 0, note: '', type: 11 }),
     );
   });
+
+  it('opens the cashbox export dialog when the treasurer clicks Export', async () => {
+    const { fixture, dialog } = await setup();
+    fixture.detectChanges();
+
+    const exportButton = [...(fixture.nativeElement as HTMLElement).querySelectorAll('button')].find(
+      (btn) => btn.textContent?.includes('Export'),
+    );
+    exportButton?.click();
+
+    expect(dialog.open).toHaveBeenCalledWith(
+      CashboxExportDialog,
+      expect.objectContaining({ data: { teamId: expect.any(Number) } }),
+    );
+  });
+
+  it('hides the Export button from a member without booking rights', async () => {
+    const { fixture } = await setup(1);
+    fixture.detectChanges();
+
+    const exportButton = [...(fixture.nativeElement as HTMLElement).querySelectorAll('button')].find(
+      (btn) => btn.textContent?.includes('Export'),
+    );
+    expect(exportButton).toBeUndefined();
+  });
+
+  it('does not open the export dialogs when invoked directly without booking rights', async () => {
+    const { component, dialog } = await setup(1);
+
+    component['openExportDialog']();
+    component['openExportSubscriptionDialog']();
+
+    expect(dialog.open).not.toHaveBeenCalled();
+  });
 });

myteamwallet_frontend_modern/src/app/features/team/cashbox/cashbox.ts

@@ -10,6 +10,7 @@ import { MatDialog } from '@angular/material/dialog';
 import { MatFormFieldModule } from '@angular/material/form-field';
 import { MatIconModule } from '@angular/material/icon';
 import { MatInputModule } from '@angular/material/input';
+import { MatMenuModule } from '@angular/material/menu';
 import { MatSelectModule } from '@angular/material/select';
 import { MatSnackBar, MatSnackBarModule } from '@angular/material/snack-bar';
 import { AgGridAngular } from 'ag-grid-angular';
@@ -38,6 +39,8 @@ import {
 } from '../../../models/transaction.model';
 import { ConfirmDialog, ConfirmDialogData } from '../../../shared/confirm-dialog/confirm-dialog';
 import { ContextHelp } from '../../../shared/context-help/context-help';
+import { CashboxExportDialog } from './cashbox-export-dialog/cashbox-export-dialog';
+import { CashboxExportSubscriptionDialog } from './cashbox-export-subscription-dialog/cashbox-export-subscription-dialog';
 import '../../../shared/ag-grid/ag-grid-modules';
 import { teamwalletGridTheme } from '../../../shared/ag-grid/ag-grid-theme';
 import { AmountCellRenderer } from '../../../shared/ag-grid/amount-cell-renderer';
@@ -72,6 +75,7 @@ const JOURNAL_TYPE_OPTIONS: { value: string; label: string }[] = [
     MatFormFieldModule,
     MatIconModule,
     MatInputModule,
+    MatMenuModule,
     MatSelectModule,
     MatSnackBarModule,
     ContextHelp,
@@ -396,6 +400,18 @@ export class Cashbox {
     });
   }
 
+  protected openExportDialog(): void {
+    const teamId = this.team()?.id;
+    if (!this.canBook() || !teamId) return;
+    this.dialog.open(CashboxExportDialog, { data: { teamId } });
+  }
+
+  protected openExportSubscriptionDialog(): void {
+    const teamId = this.team()?.id;
+    if (!this.canBook() || !teamId) return;
+    this.dialog.open(CashboxExportSubscriptionDialog, { data: { teamId } });
+  }
+
   protected typeLabel(type: string): string {
     return (
       {

myteamwallet_frontend_modern/src/app/models/cashbox-export.model.ts

@@ -0,0 +1,16 @@
+import { RecurringTransactionInterval } from './recurring-transaction.model';
+
+export type CashboxExportFormat = 'csv' | 'pdf';
+
+export interface CashboxExportSubscription {
+  recipients: string[];
+  interval: RecurringTransactionInterval;
+  active: boolean;
+  nextRunDate: string | null;
+}
+
+export interface UpdateCashboxExportSubscription {
+  recipients: string[];
+  interval: RecurringTransactionInterval;
+  active: boolean;
+}

myteamwallet_frontend_modern/src/app/shared/file-download/file-download.service.spec.ts

@@ -0,0 +1,29 @@
+import { TestBed } from '@angular/core/testing';
+import { FileDownloadService } from './file-download.service';
+
+describe('FileDownloadService', () => {
+  let service: FileDownloadService;
+  let clickSpy: ReturnType<typeof vi.fn>;
+  let createObjectURLSpy: ReturnType<typeof vi.fn>;
+  let revokeObjectURLSpy: ReturnType<typeof vi.fn>;
+
+  beforeEach(() => {
+    service = TestBed.inject(FileDownloadService);
+    clickSpy = vi.fn();
+    createObjectURLSpy = vi.fn(() => 'blob:mock-url');
+    revokeObjectURLSpy = vi.fn();
+    vi.spyOn(URL, 'createObjectURL').mockImplementation(createObjectURLSpy as (obj: Blob | MediaSource) => string);
+    vi.spyOn(URL, 'revokeObjectURL').mockImplementation(revokeObjectURLSpy as (url: string) => void);
+    vi.spyOn(HTMLAnchorElement.prototype, 'click').mockImplementation(clickSpy as () => void);
+  });
+
+  it('creates an object URL, clicks a temporary anchor with the given filename, and revokes the URL', () => {
+    const blob = new Blob(['content'], { type: 'text/csv' });
+
+    service.save(blob, 'kassenbuch.csv');
+
+    expect(createObjectURLSpy).toHaveBeenCalledWith(blob);
+    expect(clickSpy).toHaveBeenCalledTimes(1);
+    expect(revokeObjectURLSpy).toHaveBeenCalledWith('blob:mock-url');
+  });
+});

myteamwallet_frontend_modern/src/app/shared/file-download/file-download.service.ts

@@ -0,0 +1,13 @@
+import { Injectable } from '@angular/core';
+
+@Injectable({ providedIn: 'root' })
+export class FileDownloadService {
+  save(blob: Blob, filename: string): void {
+    const url = URL.createObjectURL(blob);
+    const anchor = document.createElement('a');
+    anchor.href = url;
+    anchor.download = filename;
+    anchor.click();
+    URL.revokeObjectURL(url);
+  }
+}