The Activity log entries of a run's life (job.started, job.paused, …): who started, paused, resumed or cancelled it, and what became of it.

An entry is built here and inserted by the engine inside the transition's transaction, then published after commit — the feed never hears of a change that rolled back (the pattern of PhoenixKit.Settings.History). The entry's module is the kind's module key, so a media run appears under media; its resource is the run (resource_type: "job_run"), which is how the Jobs page finds a run's own history.