Add GitHub Actions CI (#54)

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [ main ]
+
+jobs:
+  lint-test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python-version: ['3.13']
+        os: [ubuntu-latest]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          uv sync
+
+      - name: Format, lint, type check
+        run: |
+          uv run poe format
+          uv run poe lint
+          uv run poe lint-types
+
+      - name: Run tests
+        run: |
+          uv run pytest