uv

efa47ade - Respect `NO_COLOR` and always show the command as a header when paging `uv help` output (#16908)

Respect `NO_COLOR` and always show the command as a header when paging `uv help` output (#16908) ## Summary Fix #16879 and address an additional issue where the pager prompt would be bold regardless of NO_COLOR. <img width="1437" height="483" alt="image" src="https://github.com/user-attachments/assets/7234129a-364b-40c6-834a-57ac34212925" /> ## Test Plan Ran the test suite and manually verified against `less` 679 and `busybox` v1.34.1. Checked with and without `NO_COLOR` on both "normal" `less`, `busybox` `less`, and `more`.