chore: import upstream snapshot with attribution

.github/workflows/python-package.yml

@@ -0,0 +1,78 @@
+name: Linting and testing
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libcairo2-dev
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install poetry
+          python -m poetry install --with dev
+
+      - name: Test with Coverage and Pytest (fail if coverage is low)
+        run: |
+          poetry run coverage run --source=./maigret -m pytest --reruns 3 --reruns-delay 5 tests
+          poetry run coverage report --fail-under=60
+          poetry run coverage html
+
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v4
+        with:
+          name: htmlcov-${{ strategy.job-index }}
+          path: htmlcov
+
+  minimal-install:
+    # Verify a fresh `pip install maigret` succeeds and the test suite
+    # passes WITHOUT the optional [pdf] extra and WITHOUT system cairo.
+    # Catches regressions where core code accidentally grows a hard
+    # dependency on xhtml2pdf / pycairo / libcairo2.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install Maigret without [pdf] extra (no libcairo on host)
+        run: |
+          python -m pip install --upgrade pip
+          pip install .
+          pip install pytest pytest-asyncio pytest-rerunfailures pytest-httpserver
+
+      - name: Smoke-check the install
+        run: |
+          python -c "import maigret; from maigret.report import save_pdf_report; print('import OK')"
+          maigret --version
+
+      - name: Run tests without [pdf] extra
+        run: pytest --reruns 3 --reruns-delay 5 tests