feat(payment): expose secure APIs and themed pages

packages/payment/src/core.ts

@@ -416,6 +416,12 @@ export function definePayment(options: PaymentOptions) {
     reconcilePayments,
     paymentWebhookHandler,
     capabilitiesOf: (id: string) => adapterFor(id)?.capabilities,
+    providers: () =>
+      [...adapters.values()].map((adapter) => ({
+        id: adapter.id,
+        capabilities: adapter.capabilities,
+        supports: adapter.supports,
+      })),
   };
 }