square/picasso ? reverse-engineered prompt

Build me an Android image loading and caching library like Picasso, with a simple API for loading images from URLs or files into views, handling caching, placeholders, errors, resizing, and basic transformations. I want a small sample app too, so I can see how it works in a real Android screen, plus a Compose friendly way to use it if that fits the project.

Please make it feel polished and ready to use, with clear docs, tests where they matter, and a clean setup that can be built from the repo right away. If you need to check current Android or Gradle details online, go ahead and do that. Keep the public API easy to understand, because this should be something a developer can drop into an app and start using quickly.