Add CI workflow for Python testing and style checks

Author: FridrichMethod

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: ci
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.12", "3.13"]
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install -e ".[dev]"
+
+      - name: Check style
+        run: pre-commit run --all-files
+
+      - name: Run tests
+        run: pytest tests/ -v