Section 0 (prologue) has no chapter rows server-side — the prologue is
hardcoded client-side in Wizard/Prologue.cs — so the chapter-completion
rollup always emitted is_finished=false. The client uses that flag to
derive IsTutorialReplay; with it false, AreaSelectUI.OnTouchChapterListTutorial
blocks every chapter switch and the default focus (last visible chapter)
becomes the only confirmable one, matching the reported "all 3 greyed out,
only the 3rd playable" symptom on replay.
Override sectionFinished for id=0 with viewer.MissionData.TutorialState >= 100,
matching prod traffic_prod_626_story.ndjson btn_story_tutorial.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
