Support for openapi formats (int64, int32, date, date-time) #1239

I'm currently evaluating valibot/tojsonschema to generate openapi specs.

Currently stuck on v.bigint() and trying to generate a format spec like

const schema = v.bigint()
///
type: string
format: int64
description: Big integer as a string (int64), since JSON does not support true 64-bit integers.

https://spec.openapis.org/oas/v3.1.0#data-types

Is it something that is planned ?

I saw

More conversion options
Convert schemas into JSON schema definitions
Convert non JSON types to similar, yet different types (for example: Date into format: 'date-time' or format: 'unix-> time', BigInt into format: 'int64' or string, explicit undefined into null, etc.)

In the initial support PR: #802 by @gcornut