This reports the completion percentage of this specific FSM run, mirroring the endpoint-level progress field but scoped to this one run instance. An admin comparing the progress of the current live run against a stalled prior run, both tracked as separate FSM run objects, uses this field to see how each individual attempt actually advanced, rather than just the endpoint's current live percentage. A completed run would show progress at 100, while an aborted earlier run for the same endpoint might be frozen at, say, 40 in its own historical record.