ai_automator support for metatag (metatag module_

Changing to feature request - this has been thought of many times, but should be done.

We have a first version. How to use.

In the normal prompt field, you just have to list the context.

Under advanced settings, you have to create a prompt the describes what to do and an example.

So if you want to change the meta description for instance:
"Write a metatag description, under 160 characters in length, based on the body, that is written like an adult trying to pretend to be a cringe teenager."

And in the example for it:
"This is rad teens, the man himself said it!"

Notes for AC:
* It should handle that one of the fields you have prompts for is empty and it will run.
* It will not run, if there is a placeholder for a field, you have to manually remove the placeholder.
* This does everything in one prompt - if you need to fill out 100 meta tags, even gpt-4o might have issues with this, we have to look into if we need another automator for such cases.
* For translations, you currently have to empty the fields before running it in the translation, but that is just how automators works.

No problems with the code and works as designed. Might want some work to tidy up the form in future, as AI generated content wouldn't be sensible for a lot of the tags (I can only really see it being useful for summarises articles into a meta description?) but appreciate that will be a lot of work.

Thanks Paul & agreed - the problem is that there is a lot of plugins that can extend it, and its hard to know beforehand which ones can and can't be used.

There are some more in theory - like if you have and old website with just a ckeditor field, you could use it as context and extract an image url. That is not necessarily a AI issue, and code would make a better job, but you could use it for it, if you are out of options/developers. I guess title for certain platforms can be rewritten for audience as well.

wouters_f promised to have a feature look at it as well before I merge. Since he raise the issue - just to make sure it is what he wanted.

Ok so yes ok I tried it out.
Once I got the hang of it !
Really cool. working perfect (as usual).

I also agree with the form complexity, it's a bit overwhelming indeed. On the other hand we give editors maximal power and I got it once I started reading the description texts.

I was searching for 10 minutes first because I was used to (i've always done it like that, not saying its everybody) configuring metatags at admin/config/search/metatag and there's no mention of ai_automators there whatsoever. So i was confused.
It's also there you have the inheritance system for metatags, so I guess maybe that's why i was expecting it there?

Apart from that: Very nice, thanks!

Getting merged and we have the follow up ticket to make a lot better documentation for the Automators.

Just implemented this and very impressed. If you need help with documentation, I'd be happy to help. I'd like to see this replace (or as an alternative) to the AI Content suggestion widgets in the sidebar.