Changes to Get Available AI Models

the models response's property type changed from no type to array for status 200

removed subschema #1 subschema #2 from the models response property anyOf list for the response status 200

added the optional property count to the response with the 200 status

added the optional property detail/items/ctx to the response with the 422 status

added the optional property detail/items/input to the response with the 422 status