add gitea ci workflow

.gitea/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: debian:bookworm-slim
+
+    steps:
+      - name: Checkout
+        run: |
+          apt-get update && apt-get install -y --no-install-recommends git ca-certificates
+          git clone --depth 1 --branch "${GITHUB_REF_NAME}" \
+            "https://oauth2:${{ github.token }}@${GITHUB_SERVER_URL#https://}/${GITHUB_REPOSITORY}.git" .
+
+      - name: Install dependencies
+        run: |
+          apt-get install -y --no-install-recommends python3 python3-pip python3-venv
+          python3 -m venv venv
+          ./venv/bin/pip install --quiet --upgrade pip
+          ./venv/bin/pip install --quiet -r requirements.txt
+          ./venv/bin/pip install --quiet pytest pytest-cov
+
+      - name: Run tests
+        run: ./venv/bin/pytest tests/ -v --tb=short
+
+      - name: Check syntax
+        run: ./venv/bin/python -m py_compile run.py wsgi.py app/*.py app/**/*.py