Worklog for task "Research which models generate layouts and infographics better"

Added this image generation interface to haih-agent with the ability to choose the model, quality, and aspect ratio

It is tailored for OpenRouter, so it provides access to many models at once.

I fed the text from my website's homepage into ChatGPT and asked it to write a prompt for the image generator so I could play around and see which model produces the best result. But since there are several models and I don't want to wait for each one individually to compare the results later, I'll tweak the interface a bit so you can select multiple models at once, send several parallel requests, and then view all the results together.