feat: add payment module

modules/payment/routes/beneficiaries/:id/handle.ts

@@ -0,0 +1,12 @@
+import { NotFoundError } from "@platform/relay";
+
+import { getBeneficiaryById } from "../../../repositories/beneficiary.ts";
+import route from "./spec.ts";
+
+export default route.access("public").handle(async ({ params: { id } }) => {
+  const beneficiary = await getBeneficiaryById(id);
+  if (beneficiary === undefined) {
+    return new NotFoundError();
+  }
+  return beneficiary;
+});