Add guidelines on using AI

Signed-off-by: Oskar Manhart <52569953+oskardotglobal@users.noreply.github.com>

.github/CONTRIBUTING.md

@@ -7,6 +7,25 @@ Thank you for contributing to winapps! Before you can contribute, we ask some th
 - Please follow code conventions enforced by `pre-commit`. To keep down CI usage, please run it locally before committing too.
   See <https://pre-commit.com> for installation, then run `pre-commit install` inside the `winapps` repository you cloned.
 
+## About using Artificial Intelligence for pull requests
+
+> [!IMPORTANT]
+> If you are using any kind of AI assistance to contribute to WinApps, it must be disclosed in the pull request.
+
+### AI-generated code
+
+When using AI assistance, we expect contributors to understand the code that is produced and be able to answer critical questions about it. It isn't a maintainers job to review a PR so broken that it requires significant rework to be acceptable. In a perfect world, AI assistance would produce equal or higher quality work than any human. That isn't the world we live in today, and in most cases it's generating slop. A good rule of thumb is that if another person can easily tell a pull request is AI-generated, it needs some more work.
+
+### Other kinds of AI assistance
+
+Currently, [CodeRabbit](https://coderabbit.ai) is configured to review pull requests *on demand* when `@coderabbitai review` is commented on pull requests. 
+However, we ask of you to not use it for PRs of which you are the authors unless asked to. Additionally, please do not AI-generate descriptions for larger pull requests or reviews by hand. This does not include things like commit messages.
+
+### AI "Art"
+
+We do not condone AI-generated "art", including AI-written and AI-produced tutorials, AI-generated icons for contributed applications.  
+Additionally, please do not share these kinds of media on any official WinApps channel.
+
 ## Guidelines for pre-defined applications
 
 Some pre-defined applications contain a header like: