ty: Add support for using venv-installed binary (#47029)

This aligns ty's behavior with ruff by checking for binaries in the
following order:

1. venv (from the Python toolchain's bin directory)
2. PATH
3. Zed-installed

Release Notes:

- ty: Added support for using venv-installed binary
c0bfba85c5Joseph T. Lyons committed on 1/16/2026, 10:22:38 PM· committed by GitHubparente05a577
1 file changedLine totals unavailable