Scenario Replications Completed
Emitted by ScenarioOrchestrator the moment a scenario successfully finishes its replications — i.e. its in-memory simulation has completed cleanly but the per-scenario commit to KSLDatabase has not yet run. Sits between ScenarioReplicationEnded (per-replication) and ScenarioCompleted (post-commit) in the per-scenario event timeline.
Order: events fire in finish order under ConcurrentScenarioRunner.simulate(executionMode = CONCURRENT), matching the order in which scenarios finished their replications; under SEQUENTIAL they match scenario-list order. The event is not emitted for scenarios that failed with a RuntimeException or were cancelled — those paths surface only via the eventual ScenarioCompleted event with snapshot = null.
Multi-scenario GUIs use this signal to flip a scenario's status to COMPLETED at the moment its work actually finishes, rather than waiting for the orchestrator's sequential commit phase to reach that scenario.