957f84d9a5
- Add tests/conftest.py with deterministic_rng + sample_profile fixtures - Register unit/integration/e2e markers in pyproject.toml - Mark existing 14 tests as @pytest.mark.unit - Fix test_cli.py: use 'invisible_playwright' (underscore) for 'python -m' - Fix test_translate_includes_gpu_renderer: assert Windows behavior (empty renderer)