perf(reweight): precompute O(N×T) log-weight cache to speed up bisection #52

	# This workflow runs unit tests across multiple Python versions
	name: Run Tests

	on:
	push:
	branches: ["main", "dev"]
	pull_request:
	branches: ["main", "dev"]
	workflow_dispatch:
	workflow_call:

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.8", "3.10", "3.12"]

	steps:
	- name: Checkout source
	uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Cache pip dependencies
	uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-tests-${{ matrix.python-version }}-${{ hashFiles('requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-tests-${{ matrix.python-version }}-

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi

	- name: Run tests
	run: \|
	python -m unittest discover tests

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