docs(contributing): Update for project tooling

why: Template referenced flake8 and make test; project uses ruff, mypy, and uv.
what:
- Rewrite PR process for ruff, mypy, pytest, uv workflow
- Reference AGENTS.md and developing docs

Author: tony

.github/contributing.md

@@ -1,27 +1,19 @@
 # Contributing
 
 When contributing to this repository, please first discuss the change you wish to make via issue,
-email, or any other method with the maintainers of this repository before making a change. 
+email, or any other method with the maintainers of this repository before making a change.
 
-Please note we have a code of conduct, please follow it in all your interactions with the project.
+See [developing](../docs/developing.md) for environment setup and [AGENTS.md](../AGENTS.md) for
+detailed coding standards.
 
 ## Pull Request Process
 
-1. Ensure any install or build dependencies are removed before the end of the layer when doing a 
-   build.
-2. This project uses flake8 to conform with common Python standards. Make sure
-   to run your code through linter using latest version of flake8, before pull request.
-3. Bad documnentation is a Bug. If your change demands documentation update, please do so. If you
-   find an issue with documentation, take the time to improve or fix it.
-4. pytest is used for automated testing. Please make sure to update tests that are needed, and to run
-   `make test` before submitting your pull request. This should prevent issues with CI and
-   make the review and merging process easier and faster.
-5. Update the README.md with details of changes to the interface, this includes new environment 
-   variables, exposed ports, useful file locations and container parameters.
-6. Increase the version numbers in any examples files and the README.md to the new version that this
-   Pull Request would represent. The versioning scheme we use is [SemVer](http://semver.org/).
-7. You may merge the Pull Request in once you have the sign-off of one other developer. If you 
-   do not have permission to do that, you may request reviewer to merge it for you.
+1. **Format and lint**: `uv run ruff format .` then `uv run ruff check . --fix --show-fixes`
+2. **Type check**: `uv run mypy`
+3. **Test**: `uv run pytest` — all tests must pass before submitting
+4. **Document**: Update docs if your change affects the public interface
+5. You may merge the Pull Request once you have the sign-off of one other developer. If you
+   do not have permission to do that, you may request a reviewer to merge it for you.
 
 ## Decorum