do ruff stuff in CI

.gitlab-ci.yml

@@ -6,6 +6,28 @@ variables:
   # so we need to copy instead of using hard links.
   UV_LINK_MODE: copy
 
+.base_ruff:
+  stage: build
+  interruptible: true
+  image:
+    name: ghcr.io/astral-sh/ruff:0.11.10-alpine
+  before_script:
+    - cd $CI_PROJECT_DIR
+    - ruff --version
+
+Ruff Check:
+  extends: .base_ruff
+  script:
+    - ruff check --output-format=gitlab > code-quality-report.json
+  artifacts:
+    reports:
+      codequality: $CI_PROJECT_DIR/code-quality-report.json
+
+Ruff Format:
+  extends: .base_ruff
+  script:
+    - ruff format --diff
+
 pytest:
   image: ghcr.io/astral-sh/uv:$UV_VERSION-python$PYTHON_VERSION-$BASE_LAYER
   stage: test