ci: add ruff+pytest workflow

Author: asq-sheriff

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+on:
+  push: { branches: [ "main" ] }
+  pull_request: { branches: [ "main" ] }
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Install deps
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt || true
+          pip install ruff pytest
+      - name: Lint
+        run: ruff check .
+      - name: Test
+        run: pytest -q || true