The reaper used `su` too — runuser, and no shell anywhere

RefactorKlusterServices
Ya
3 Septemba 2026, 19:50 UTC
Mwandishi
Kamo
Ahadi ya
d95d21d

Dropping su from the exec path left it in reap_idle, which runs on every terminal connect. Same three objections, and the last one is the one that bites: `su - <user> -c "..."` builds a shell string, opens a PAM session, and sources the account's profile — so a .bashrc that prints anything would prepend it to the tmux listing this method parses. `runuser -u <user> --` takes an argv list and does none of those things. With this, no part of the terminal path assembles a command as a string. A test now asserts no argv in the reaper contains `su` and every one starts with runuser, so this cannot quietly come back. 114 tests.

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