Recursive types

Rerucsive types are useful and also supported by JSON schema https://json-schema.org/understanding-json-schema/structuring#recursion.

In other parser library APIs, this feature is often called "lazy".

Typebox calls it `.Recursive`.

an example of a recursive structure:

```ts
// Typebox:
const FileSystem = Type.Recursive((Self) =>
Type.Intersect([
Type.Object({
name: Type.String({
minLength: 1,
}),
}),
Type.Union([
Type.Object({
type: Type.Literal('file'),
}),
Type.Object({
type: Type.Literal('directory'),
children: Type.Array(Self),
}),
]),
])
);
```

Start with the JSON Schema recursion reference linked in the issue and compare it with the Typebox `.Recursive` example. Determine how recursive or lazy types should fit the existing tschema API; done means the requested recursive structure can be represented and validated consistently.

Written by the indexing model from the issue text.