Save AI generated image caption in asset schema

[jogold]

Is your feature request related to a problem? Please describe.
There's currently no way to save the generated image caption directly in the asset schema. I'm using the Media browser plugin and if the caption was saved in a field of the asset schema it would allow to search for images in the Media browser.

Describe the solution you'd like
Being able to specify an asset schema field for the generated caption.

Describe alternatives you've considered
N/A

Additional context
N/A