feat: add payment module

platform/parse/time.ts

@@ -0,0 +1,13 @@
+import z from "zod";
+
+export const ZonedDateTimeSchema = z.object({
+  tag: z.literal("time/zoned-date-time"),
+  rep: z.string(),
+  hashCode: z.number(),
+});
+
+export function assertZonedDateTime(value: object | null): value is ZonedDateTime {
+  return ZonedDateTimeSchema.parse(value) !== undefined;
+}
+
+export type ZonedDateTime = z.output<typeof ZonedDateTimeSchema>;