First proof that follower DEATH / board-removal commits in the authoritative
part of PlayCard headless (not the cosmetic post-Process tail). Card 800144120
(cost-0 when_play destroy of a select_count=1 enemy follower) resolves via the
M6 selectedCards path: selected enemy follower removed (board -1 + cemetery +1),
un-selected untouched (routing confirmed load-bearing by swapping the selection).
Shim gap fixed (the predicted M7 cost): SkillProcessor.SelectCardToHaveDestroyVoicePlay's
cosmetic death-voice tail NRE'd on three M1 default!/Null* shadows
(IBattleCardView.VoiceInfo, CardVoiceInfoCache.GetCardVoiceInfoForBattle,
ReadOnlyVoiceInfo.GetDestroyVoice — the last unusable as the interface since
m1_stub_gen dropped its : IReadOnlyVoiceInfo base). Fix = one hand shim
HeadlessVoiceInfo : IReadOnlyVoiceInfo returning the engine's own
VoiceAndWaitTime._nullVoice sentinel, wired into the two generated seams with
// HEADLESS-FIX markers. No Engine/ edit (drift clean).
dotnet test SVSim.BattleEngine.Tests -> 7/7 green; check_drift.py clean; engine 0 Error(s).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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