Add CI configuration for linting and type checking

Author: UnsignedArduino

.github/workflows/lint.yaml

@@ -0,0 +1,14 @@
+name: CI
+on: [ push, pull_request ]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with: { python-version: "3.14" }
+      - run: uv sync
+      - run: uv run ruff check .
+      - run: uv run ruff format --check .
+      - run: uv run mypy .