move supporting code for papers to module paper_code #27

	name: CI

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	env:
	FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.10", "3.11", "3.12"]

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e ".[dev]"

	- name: Verify imports
	run: \|
	python -c "
	from optimalportfolios import (
	PortfolioObjective, Constraints, GroupLowerUpperConstraints,
	FactorCovarEstimator, EwmaCovarEstimator
	)
	print('All imports OK')
	"

	- name: Verify factorlasso integration
	run: \|
	python -c "
	from factorlasso import LassoModel as FL_LassoModel
	from optimalportfolios import LassoModel as OP_LassoModel
	assert FL_LassoModel is OP_LassoModel, 'Re-export mismatch'
	print('factorlasso integration OK')
	"

	- name: Run solver tests (no external data)
	run: \|
	python optimalportfolios/optimization/tests/constraints_test.py
	python optimalportfolios/optimization/tests/carra_mixture_test.py
	python optimalportfolios/optimization/tests/quadratic_test.py
	python optimalportfolios/optimization/tests/maximise_alpha_with_target_yield_test.py
	python optimalportfolios/optimization/tests/maximise_alpha_over_tre_test.py
	python optimalportfolios/utils/tests/portfolios_funcs_test.py

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