Add CI workflow for lint, tests, and config validation

.forgejo/workflows/ci.yml

@@ -0,0 +1,47 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: pip install -r requirements.txt
+
+      - name: Lint with flake8
+        run: |
+          pip install flake8
+          flake8 src/ --max-line-length=120 --ignore=E501,W503
+
+      - name: Run tests
+        run: pytest tests/ -v --tb=short
+
+  validate-config:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Validate pipeline config
+        run: |
+          pip install pyyaml
+          python3 -c "
+          import yaml, sys
+          with open('config/pipeline.yml') as f:
+              cfg = yaml.safe_load(f)
+          assert 'pipeline' in cfg
+          assert 'source' in cfg['pipeline']
+          assert 'destination' in cfg['pipeline']
+          print('Config OK')
+          "