Is your feature request related to a problem? Please describe.

I'm doing a thing with Cloudinary Astro and using Unpic, and the only part I'm tripping up on is that they have some AI stuff (moderation, smart object cropping, etc.), but it requires a signed URL to avoid randos burning through account credits.

Describe the solution you'd like

It would be VERY cool if I could do something like this:

export default defineConfig({
  image: {
    service: imageService({
      cdnOptions: {
        cloudinary: {
          cloud_name: import.meta.env.CLOUDINARY_CLOUD_NAME,
          api_key: import.meta.env.CLOUDINARY_API_KEY,
          api_secret: import.meta.env.CLOUDINARY_API_SECRET,
        }
      }
    }),
  },
});

Describe alternatives you've considered

Right now I'm bailing on Unpic and using the Cloudinary SDK <img> tags, which is fine, but it requires a "two ways of doing things" mindset when handling images in Astro, which is kind of a bummer.