When a restriction is defined for an attribute in GeoServer (such as a numeric range or a list of allowed values), this information is available via GeoServer’s configuration (e.g., in DescribeFeatureType or other schema metadata).

It would be helpful if geoserver-restconfig exposed these attribute-level restrictions through the FeatureType class.

Examples of restrictions:

Range values (e.g., min/max) for numeric fields

Enumerated values for string or numeric fields

This would allow client applications to easily access and use validation rules defined in GeoServer.