feat(checkout): add completePurchase method and update PurchaseStatusResponse

src/app/core/services/checkout.service.spec.ts

@@ -38,4 +38,20 @@ describe('CheckoutService', () => {
 
     await expect(purchasePromise).resolves.toMatchObject({ id: 55 });
   });
+
+  it('preserves checkout timing fields when completing a purchase', async () => {
+    const purchasePromise = service.completePurchase('desfile', 55);
+    const request = httpMock.expectOne(`${environment.url}tenants/desfile/compras/55/complete`);
+    const response = {
+      status: 'pending_payment',
+      expires_at: '2026-08-26T20:00:00.000Z',
+      expires_in_seconds: 900,
+      server_time: '2026-08-26T19:45:00.000Z',
+    };
+
+    expect(request.request.method).toBe('POST');
+    request.flush({ data: response });
+
+    await expect(purchasePromise).resolves.toEqual(response);
+  });
 });

src/app/core/services/checkout.service.ts

@@ -70,6 +70,9 @@ export type StartCheckoutPayload =
 
 export interface PurchaseStatusResponse {
   status: string | null;
+  expires_at: string | null;
+  expires_in_seconds: number | null;
+  server_time: string;
 }
 
 export interface PurchaseSummaryResponse extends PurchaseStatusResponse {
@@ -106,7 +109,6 @@ export interface PurchaseDetailResponse extends PurchaseStatusResponse {
   user_id: number;
   created_at: string | null;
   payment_method: string | null;
-  expires_at: string | null;
   dni: string | null;
   transfer_payer_dni: string | null;
   telefono: string | null;
@@ -200,9 +202,7 @@ export class CheckoutService extends BaseApiService {
       throw new Error('Error al finalizar la compra.');
     }
 
-    return {
-      status: purchase.status ?? null,
-    };
+    return purchase;
   }
 
   async submitPurchaseForReview(
@@ -221,7 +221,7 @@ export class CheckoutService extends BaseApiService {
       throw new Error('Error al enviar la compra a revisi\u00f3n.');
     }
 
-    return { status: purchase.status ?? null };
+    return purchase;
   }
 
   async cancelPurchase(tenantCode: string, purchaseId: number): Promise<PurchaseStatusResponse> {
@@ -237,7 +237,7 @@ export class CheckoutService extends BaseApiService {
       throw new Error('Error al cancelar la compra.');
     }
 
-    return { status: purchase.status ?? null };
+    return purchase;
   }
 
   async getPurchases(