feat(watcher): add Flip transfer receipt provider

Match no-reply@flip.id transfer success mail (direct or forwarded), parse stacked Nominal/ID Transaksi fields, and map spendings with source=flip.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/watcher/test/parse.test.js

@@ -1,12 +1,14 @@
 import assert from "node:assert/strict";
 import { describe, it } from "node:test";
 import { parseBriQris, parseBriTransfer } from "../src/parsers/bri.js";
+import { parseFlipTransfer } from "../src/parsers/flip.js";
 import { parseGrabReceipt, extractGrabTripTimesFromHtml } from "../src/parsers/grab.js";
 import { parseLivinReceipt, splitMerchantLocation } from "../src/parsers/livin.js";
 import { parseTokopediaOrder } from "../src/parsers/tokopedia.js";
 import { toSpendingRecord, toPocketBaseDate } from "../src/pocketbase/map.js";
 import { briQris } from "../src/rules/bri-qris.js";
 import { briTransfer } from "../src/rules/bri-transfer.js";
+import { flipTransfer } from "../src/rules/flip-transfer.js";
 import { livinQrPayment } from "../src/rules/livin-qr-payment.js";
 import { grabEreceipt } from "../src/rules/grab-ereceipt.js";
 import { tokopediaOrder } from "../src/rules/tokopedia-order.js";
@@ -15,6 +17,8 @@ import {
   briQrisForwardedBody,
   briTransferDirectBody,
   briTransferForwardedBody,
+  flipDirectBody,
+  flipForwardedBody,
   grabBody,
   grabFoodForwardedBody,
   grabForwardedBody,
@@ -366,6 +370,58 @@ describe("toSpendingRecord", () => {
     assert.equal(rec.description, "LuxePad.Creations - Tokopedia");
     assert.equal(rec.trx_date, "2026-09-05 00:00:00.000Z");
   });
+
+  it("maps Flip transfer envelope to spendings fields", () => {
+    const parsed = {
+      kind: "flip.transfer.success",
+      messageId: "1a0c704164e0cd54",
+      amount: 40001,
+      reference: "ST260918145355861M3ZG4",
+      occurredAt: "2026-09-18T14:53:00+07:00",
+      details: {
+        namaTujuan: "Rwen Ibrahim",
+        bankTujuan: "BCA",
+        nomorRekening: "0020215810",
+      },
+    };
+    const rec = toSpendingRecord(parsed, flipTransfer);
+    assert.equal(rec.invoice_id, "ST260918145355861M3ZG4");
+    assert.equal(rec.amount, 40001);
+    assert.equal(rec.source, "flip");
+    assert.equal(rec.description, "Rwen Ibrahim");
+    assert.equal(rec.trx_date, toPocketBaseDate(parsed.occurredAt));
+    assert.deepEqual(rec.parsed, parsed);
+  });
+});
+
+describe("parseFlipTransfer", () => {
+  it("parses direct stacked-label body", () => {
+    const r = parseFlipTransfer(flipDirectBody);
+    assert.ok(r);
+    assert.equal(r.amount, 40001);
+    assert.equal(r.reference, "ST260918145355861M3ZG4");
+    assert.equal(r.occurredAt, "2026-09-18T14:53:00+07:00");
+    assert.equal(r.details.namaTujuan, "Rwen Ibrahim");
+    assert.equal(r.details.bankTujuan, "BCA");
+    assert.equal(r.details.nomorRekening, "0020215810");
+  });
+
+  it("parses forwarded body", () => {
+    const r = parseFlipTransfer(flipForwardedBody);
+    assert.ok(r);
+    assert.equal(r.amount, 40001);
+    assert.equal(r.reference, "ST260918145355861M3ZG4");
+    assert.equal(r.occurredAt, "2026-09-18T14:53:00+07:00");
+    assert.equal(r.details.namaTujuan, "Rwen Ibrahim");
+  });
+
+  it("returns null when Nominal or ID Transaksi missing", () => {
+    assert.equal(parseFlipTransfer("BUKTI TRANSFER\nNominal\nRp10.000\n"), null);
+    assert.equal(
+      parseFlipTransfer("ID Transaksi\n#ABC\nNama Tujuan\nX\n"),
+      null,
+    );
+  });
 });
 
 describe("parseTokopediaOrder", () => {