docs: add SVG banner to README, clean up header section #70

	name: CI

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ["3.10", "3.11", "3.12", "3.13"]
	fail-fast: false

	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: pip install -e ".[dev]"

	- name: Show tree-sitter version
	run: pip show tree-sitter tree-sitter-python tree-sitter-javascript

	- name: Lint
	run: ruff check saar/ tests/

	- name: Test
	run: pytest tests/ -v --tb=long 2>&1

	# Quick smoke test: install from built wheel and run CLI
	install-test:
	runs-on: ubuntu-latest
	needs: test
	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Build wheel
	run: \|
	pip install build
	python -m build

	- name: Install from wheel
	run: pip install dist/*.whl

	- name: Smoke test CLI
	run: \|
	saar --version
	saar extract . --format markdown --no-interview

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