feat(M08-A): 接入权益和余额下单抵扣

backend/tests/payment.test.mjs

@@ -76,6 +76,15 @@ assert.equal(created.statusCode, 201);
 assert.equal(createInput.platformAppId, '9');
 assert.equal('amountCents' in createInput, false);
 
+const balanceCreated = await app.inject({
+  method: 'POST',
+  url: '/app-api/payments',
+  headers: { authorization: `Bearer ${token}` },
+  payload: { orderId: '31', provider: 'BALANCE', clientRequestId: 'request-balance-0001' }
+});
+assert.equal(balanceCreated.statusCode, 201);
+assert.equal(createInput.provider, 'BALANCE');
+
 const completed = await app.inject({
   method: 'POST',
   url: '/app-api/payments/51/test-complete',

backend/tests/pricing.test.mjs

@@ -65,6 +65,13 @@ const reserved = await app.inject({
     startAt: startAt.toISOString(),
     endAt: endAt.toISOString(),
     pricingMode: 'HOURLY',
+    benefits: {
+      couponGrantId: '401',
+      packageHoldingId: '501',
+      packageMinutes: 60,
+      packageCreditCents: 2000,
+      clientRequestId: 'benefit-route-0001'
+    },
     totalCents: 1,
     discountCents: 999999
   }
@@ -74,6 +81,13 @@ assert.equal(reserveInput.tenantId, '7');
 assert.equal(reserveInput.userId, '21');
 assert.equal('totalCents' in reserveInput, false);
 assert.equal('discountCents' in reserveInput, false);
+assert.deepEqual(reserveInput.benefits, {
+  couponGrantId: '401',
+  packageHoldingId: '501',
+  packageMinutes: 60,
+  packageCreditCents: 2000,
+  clientRequestId: 'benefit-route-0001'
+});
 
 const unauthenticated = await app.inject({
   method: 'POST',