## Why
Python files under `scripts/` were not covered by the repository
formatting recipe or the CI formatting job, so formatting drift could
merge unnoticed.
## What
- Add a dedicated `scripts/pyproject.toml` and `scripts/uv.lock` so
root-script formatting uses a locked Ruff version.
- Extend `just fmt` to format root Python scripts and add
`fmt-scripts-check` for CI.
- Run `just fmt-scripts-check` from `.github/workflows/ci.yml`,
installing `uv` through SHA-pinned `astral-sh/setup-uv` while retaining
the `uv` `0.11.3` pin.
- Apply Ruff formatting to the root Python scripts, including
`scripts/just-shell.py`, and extend
`sdk/python/tests/test_artifact_workflow_and_binaries.py` to cover the
root formatting recipe.
- Update `AGENTS.md` so agents run `just fmt` after code changes
anywhere in the repository.
## Validation
- Extended the existing Python SDK workflow test to assert that `just
fmt` includes root Python scripts.
Updates our build script to pull down the artifacts like we do in CI for
building v8 into our targets.
This changes the flow so that we now pre-install rusty v8 assets for all
of our release targets from pre-built in workflow.
Secondarily if running it locally we now optionally pull the assets down
on python run assuming the user hasn't set the proper values, it then
provides them.
Sorry for the miss here.