Set up CI

.forgejo/workflows/build.yaml

@@ -0,0 +1,28 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+
+  test:
+    runs-on: docker
+    container:
+      image: alpine:latest
+
+    steps:
+    - run: apk add nodejs git python3 uv ruff
+    - uses: actions/checkout@v4
+
+    - name: check uv.lock
+      run: |
+        uv sync
+        git diff --exit-code uv.lock
+
+    - name: ruff check
+      run: uv run ruff check
+
+    - name: ruff format
+      run: uv run ruff format --diff --check