Add github workflows

.github/workflows/CI.yml

@@ -0,0 +1,34 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version-file: .python-version
+
+    - name: Install uv
+      uses: astral-sh/setup-uv@v3
+
+    - name: Install dependencies
+      run: uv sync
+
+    - name: Build package
+      run: uv build
+
+    - name: Run tests
+      run: uv run python -m unittest discover -s tests