Changes to GPT Image 2.5 Flare

added the optional property error/param to the response with the 200 status

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

added the new 16:9 enum value to the request property aspect_ratio

added the new 1:2 enum value to the request property aspect_ratio

added the new 2:1 enum value to the request property aspect_ratio

added the new 2K enum value to the request property resolution

added the new 3:4 enum value to the request property aspect_ratio

added the new 4:3 enum value to the request property aspect_ratio

added the new 4K enum value to the request property resolution

added the new 9:16 enum value to the request property aspect_ratio

endpoint added