Changes to Discover LoRA trainers and compatible models

added the new not_configured enum value to the error/code response property for the response status 400

added the new not_configured enum value to the error/code response property for the response status 401

added the new not_configured enum value to the error/code response property for the response status 402

added the new not_configured enum value to the error/code response property for the response status 403

added the new not_configured enum value to the error/code response property for the response status 404

added the new not_configured enum value to the error/code response property for the response status 409

added the new not_configured enum value to the error/code response property for the response status 429

added the new not_configured enum value to the error/code response property for the response status 500

added the new not_configured enum value to the error/code response property for the response status 503

endpoint added