Hojun-Cho
93b671808c
Mirror Hare's os env surface: getenvs() builds an owned []str of NAME=VALUE entries from the rt_envp table (platform_environ.ha:41), and getenv iterates it (environ.ha:32) so there is exactly one env walker. strings.dup is unusable here -- lib/strings imports os, so os importing strings would cycle; the owned copy is inlined (dup.ha:7). test_getenvs_entries pins the []str shape non-vacuously.