Changes to Content Idea Generator

added the optional property code to the response with the 400 status

added the optional property code to the response with the 429 status

added the optional property code to the response with the 500 status

added the optional property message to the response with the 400 status

added the optional property message to the response with the 500 status

added the optional property reference to the response with the 400 status

added the optional property reference to the response with the 429 status

added the optional property reference to the response with the 500 status

added the optional property success to the response with the 400 status

added the optional property success to the response with the 429 status

added the optional property success to the response with the 500 status

api path removed without deprecation

endpoint added