6fd870599091f4d2dd6241b69916a8ce5d804816
The endpoint used to write the client-supplied step verbatim, so a stale or replayed request with tutorial_step=0 against any later-stage viewer would regress the persisted state to 0. NextSceneSwitcher routes step==0 to AreaSelect section 0, which has no chapter data — the client LINQ-Single() crashes on next /load/index, bricking the viewer. Math.Max-preserve matches the 31→41 pattern in GiftController.TutorialGiftReceive. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Description
The SV Simulator server code, including the DCG Engine, SVSim content, and an entrypoint for the official game client.
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C#
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