Post evening on-call engineer roster to team channel

Your on-call roster in chat often lists outdated contacts, delaying incident handoffs. It posts the nightly on-call roster so engineers have current contacts before shift.

Overview

Run this nightly roster post to remove ambiguity about who owns after-hours incidents and speed initial triage. The incident channel receives a single, up-to-date on-call roster every evening so paging and handoffs happen smoothly before the shift.