feat: add buildReceivableRows for fine/levy/fee entries

Cashbox export previously only saw payment transactions. This adds
the query for fine/levy/fee entries (Forderungen) that the redesigned
PDF report will show in a separate section.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

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

@@ -1,4 +1,4 @@
-import { buildCsv, buildPdf, buildRows } from './cashbox-export.utils';
+import { buildCsv, buildPdf, buildReceivableRows, buildRows } from './cashbox-export.utils';
 
 describe('buildRows', () => {
   const team = (overrides: Partial<{ transactions: any[]; players: any[] }> = {}) => ({
@@ -102,6 +102,87 @@ describe('buildRows', () => {
   });
 });
 
+describe('buildReceivableRows', () => {
+  const team = (overrides: Partial<{ players: any[] }> = {}) => ({
+    id: 5,
+    name: 'Team A',
+    alias: 'team-a',
+    players: [],
+    ...overrides,
+  });
+
+  it('includes fine, levy and fee player transactions, excluding payment and credit', () => {
+    const rows = buildReceivableRows(
+      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' } },
+              { date: '2026-08-05T00:00:00.000Z', amount: 5, note: 'Zu spät', type: { name: 'fine' } },
+              { date: '2026-08-06T00:00:00.000Z', amount: 20, note: 'Umlage Trikots', type: { name: 'levy' } },
+            ],
+          },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows).toEqual([
+      { date: '2026-08-04T00:00:00.000Z', type: 'fee', who: 'Alex Muster', note: 'Monatsbeitrag', amount: 15 },
+      { date: '2026-08-05T00:00:00.000Z', type: 'fine', who: 'Alex Muster', note: 'Zu spät', amount: 5 },
+      { date: '2026-08-06T00:00:00.000Z', type: 'levy', who: 'Alex Muster', note: 'Umlage Trikots', amount: 20 },
+    ]);
+  });
+
+  it('excludes rows outside the [from, to] range and sorts the rest chronologically', () => {
+    const rows = buildReceivableRows(
+      team({
+        players: [
+          {
+            firstName: 'Bob',
+            lastName: 'Smith',
+            transactions: [
+              { date: '2026-07-31T23:59:00.000Z', amount: 5, note: 'zu früh', type: { name: 'fine' } },
+              { date: '2026-09-01T00:00:01.000Z', amount: 5, note: 'zu spät', type: { name: 'fine' } },
+              { date: '2026-08-20T00:00:00.000Z', amount: 5, note: 'zweitens', type: { name: 'fee' } },
+              { date: '2026-08-01T00:00:00.000Z', amount: 5, note: 'erstens', type: { name: 'levy' } },
+            ],
+          },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows.map((row) => row.note)).toEqual(['erstens', 'zweitens']);
+  });
+
+  it('skips transactions with null type and returns an empty array when nothing matches', () => {
+    const rows = buildReceivableRows(
+      team({
+        players: [
+          {
+            firstName: 'Carla',
+            lastName: 'Beispiel',
+            transactions: [
+              { date: '2026-08-05T00:00:00.000Z', amount: 10, note: 'Null type', type: null },
+              { date: '2026-08-06T00:00:00.000Z', amount: 10, note: 'Zahlung', type: { name: 'payment' } },
+            ],
+          },
+        ],
+      }) as any,
+      '2026-08-01',
+      '2026-08-31',
+    );
+
+    expect(rows).toEqual([]);
+  });
+});
+
 describe('buildCsv', () => {
   it('renders the header and formatted rows with German decimals', () => {
     const csv = buildCsv([

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

@@ -62,10 +62,49 @@ export function buildRows(team: Team, from: string, to: string): CashboxExportRo
   });
 }
 
+export interface CashboxReceivableRow {
+  date: string;
+  type: string;
+  who: string;
+  note: string;
+  amount: number;
+}
+
+const RECEIVABLE_TYPES = new Set(['fine', 'levy', 'fee']);
+
+export function buildReceivableRows(team: Team, from: string, to: string): CashboxReceivableRow[] {
+  const fromTime = new Date(`${from}T00:00:00.000Z`).getTime();
+  const toTime = new Date(`${to}T23:59:59.999Z`).getTime();
+
+  const raw: CashboxReceivableRow[] = [];
+  for (const player of team.players ?? []) {
+    for (const transaction of player.transactions ?? []) {
+      if (!transaction.type || !RECEIVABLE_TYPES.has(transaction.type.name)) continue;
+      raw.push({
+        date: transaction.date,
+        type: transaction.type.name,
+        who: `${player.firstName} ${player.lastName}`,
+        note: transaction.note,
+        amount: Number(transaction.amount),
+      });
+    }
+  }
+
+  return 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));
+}
+
 const TYPE_LABELS: Record<string, string> = {
   payment: 'Zahlung',
   credit: 'Guthaben',
   expense: 'Ausgabe',
+  fine: 'Strafe',
+  levy: 'Umlage',
+  fee: 'Gebühr',
 };
 
 function formatGermanAmount(value: number): string {