ee808a60a2e65ad1b4b9d0f2e9db0fb1a69f66cc
Adds BGType persistence (0=Deck/1=CustomBG/2=RandomBG) to Viewer via two scalar columns and an owned collection keyed (ViewerId, Slot). Two persistence tests confirm round-trip and zero-defaults on fresh viewers. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Description
The SV Simulator server code, including the DCG Engine, SVSim content, and an entrypoint for the official game client.
Languages
C#
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