* Make the unsloth_cli studio tests pass in isolation
Six tests in test_studio_run_parallel_flag.py and one in
test_studio_secure_flag.py only passed in a full-directory run. All of them
reach the in-venv branch of run(), which does `from state.tool_policy import
set_tool_policy`. That module lives under studio/backend, so it only imports
once something has put that directory on sys.path, and nothing in either file
does. They were relying on test_start.py, which calls
ensure_studio_backend_path() and leaks the sys.path entry, or on
test_studio_cloudflare_flag.py, which stubs the module.
Add a stub_tool_policy_state fixture in a new conftest and use it in the seven,
so the state comes from the test rather than from whatever ran first.
Every file in unsloth_cli/tests now passes on its own, and the suite is stable
across four pytest-randomly seeds.
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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