uv

78c8c711 - Refactor os, arch, and libc information into a shared `Platform` type (#15027)

Refactor os, arch, and libc information into a shared `Platform` type (#15027) Addresses this outstanding item from a previous review https://github.com/astral-sh/uv/pull/13724#discussion_r2114867288 I'm interested in this now for consolidating some logic in #12731