## Summary Closes https://github.com/astral-sh/ruff/issues/12291. ## Test Plan ```shell ❯ cargo run check ../uv/foo --select INP /Users/crmarsh/workspace/uv/foo/bar/baz.py:1:1: INP001 File `/Users/crmarsh/workspace/uv/foo/bar/baz.py` is part of an implicit namespace package. Add an `__init__.py`. Found 1 error. ```