Interface FlowBreakEvent

When true, this break event was raised on the PARENT because an inner subflow's break propagated up (via SubflowMountOptions.propagateBreak). The originating inner break fires its own onBreak event separately — this flag lets recorders distinguish the two.

Optional free-form reason supplied by scope.$break(reason). Absent when the stage invoked $break() without an argument. Propagates when a subflow is mounted with propagateBreak: true — the outer break event carries the inner break's reason too. Under a redaction policy it is the placeholder when the stage read a selected value, its args hold a selected key, or logs.breakReason is selected by name.