[VOTE] Add initial/write defaults to REST spec

[Daniel Weeks]

Everyone,

I'd like to hold a quick vote for a small addition to the REST spec to
include the initial/write defaults introduced in v3 as optional fields to
the table schema.

PR: OpenAPI: add initial/write defaults to schema #12094
<https://github.com/apache/iceberg/pull/12094>

Thanks,
Dan