PARTIAL SAVE: writes ONLY the 'Tutorial' field of TitlePublicConfigurationModel; all other v1/v2 fields stay untouched. Tutorial / onboarding definitions — flows (ordered scenarios) built from steps that teach the player a mechanic. A step completes either by client acknowledgement or by a real game event (the same TriggerSource vocabulary as Quest), so "make a roll", "buy something", "open a chest" need no client-side bookkeeping. A step may also PREDETERMINE the outcome of another module (TutorialScriptedOutcome — e.g. force the board dice to land on a Raid tile), which is the only way to demonstrate a mechanic instead of randomness. Flows carry an audience gate (SegmentGate) and a schedule (ScheduleSpec); putting an Experiment condition in that gate is how two tutorial versions are A/B-tested. Gating other content on tutorial progress is done via SegmentGate.Tutorial per entity, or via Settings.Blocking to close whole modules until onboarding is finished.