[Bug] Sandbox blocks uv cache access during pytest execution

Bug Description
When using sandbox and uv together, running pytest fails because it cannot access $HOME/.cache/uv/sdists-v9/.git.

⏺ Bash(uv run pytest -v)
⎿  Error: error: failed to open file $HOME/.cache/uv/sdists-v9/.git: Operation not permitted (os error 1)

<sandbox_violations>
uv(9813) deny(1) file-write-data $HOME/.cache/uv/sdists-v9/.git
</sandbox_violations>

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.0.26
• Feedback ID: 1c792d06-9b35-4f79-9656-056b857900f1

Errors
⏺ Bash(uv run pytest -v)
⎿  Error: error: failed to open file $HOME/.cache/uv/sdists-v9/.git: Operation not permitted (os error 1)

<sandbox_violations>
uv(9813) deny(1) file-write-data $HOME/.cache/uv/sdists-v9/.git
</sandbox_violations>