[feat] Allow an artist to specify if their content may be used for AI training

[NoRulesJustFeels]

Describe the problem

AI models are trained on publicly available data and images. If an artist mints on Teia, there is currently no way for the artist to specify that any crawlers gathering data for AI training should not use their work.

Other sites like Deviantart and Artstation have deployed ways to allow their artist to control if their art can be crawled and used in AI training.

Describe the solution you'd like

ArtStation has just released an update to their platform and terms of service where projects tagged using “NoAI” will automatically be assigned an HTML “NoAI” meta tag. This will explicitly disallow the use of the content by AI systems and mark the project so that they know they are not allowed to use it.

Deviantart supports the following:

To not allow AI to use anything on the page:
<meta name="robots" content="noai">
To not allow AI to use any images on the page:
<meta name="robots" content="noimageai">
To place both directives:
<meta name="robots" content="noai, noimageai">

One option for Teia could be to follow Artstations and allow artists to tag their work with "noai". The Teia frontend would then add the HTML metadata tags.

Alternatives considered

No response

Additional context

No response