feat(purchase-status): implement purchase status page with loading and error handling

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

@@ -37,4 +37,14 @@ export class CheckoutService {
     }
     return response;
   }
+
+  async finalizePurchase(tenantCode: string, purchaseId: number): Promise<{ payment_status: string; status: string }> {
+    const response = await firstValueFrom(
+      this.http.post<{ data: { payment_status: string; status: string } }>(`${environment.url}tenants/${tenantCode}/compras/${purchaseId}/finalize`, {})
+    );
+    if (!response?.data) {
+      throw new Error('Error al finalizar la compra.');
+    }
+    return response.data;
+  }
 }