feat: add card2pmml() for PMML export #407

	name: Test on Linux

	on: [push, pull_request]

	# Cancel previous runs on the same PR/branch
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	test:
	strategy:
	matrix:
	python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
	experimental: [false]
	include:
	- python-version: '3.14'
	experimental: true
	fail-fast: false
	runs-on: ubuntu-latest
	continue-on-error: ${{ matrix.experimental }}
	name: Test py ${{ matrix.python-version }}
	env:
	CI: true
	steps:
	- uses: actions/checkout@v4

	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: 'pip'
	cache-dependency-path: \|
	requirements.txt
	requirements-test.txt
	requirements-nn.txt

	- name: Setup Rust
	uses: dtolnay/rust-toolchain@stable

	- name: Cache Rust
	uses: Swatinem/rust-cache@v2
	with:
	cache-on-failure: true

	- name: Build dependencies
	run: make build_deps

	- name: Build Rust extension
	run: make build

	- name: Install Python package
	run: \|
	pip install -r requirements-nn.txt
	pip install .[all]

	- name: Verify Rust extension loaded
	run: python -c "import toad; from toad.merge import _chi_merge_rust; assert _chi_merge_rust is not None"

	- name: Run tests
	run: make test

	- name: Build distribution wheel
	run: make dist_wheel

	- name: Upload wheel
	uses: actions/upload-artifact@v4
	with:
	name: wheel-linux-py${{ matrix.python-version }}
	path: target/wheels/*.whl
	if-no-files-found: error

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