Task 2's WireMulliganPhase already installed the full mulligan delegate
set (Swap/Ready, not just Deal) via MulliganEventSetting, and the
mulligan + turn-draw mutations flow through VfxMgr.RegisterSequentialVfx
— which HeadlessConductorVfxMgr runs for InstantVfx. So Swap/Ready/
TurnStart/TurnEnd resolve headless with ZERO new shim/seed/view fills.
Adds the M-HC-1 milestone assertions: a mulligan-swap test (post-swap
hand holds deck idx 1,2,4 — idx-3 swapped for the next unused idx) and a
two-turn test (Deal->Swap->Ready->TurnStart/TurnEnd x2) asserting the
engine's deterministic node-native progression on both seats
(hand/deck/PP/turn/leader-life) at each boundary. Frame shapes mirror the
captured battle_test_cl1 receive stream (self/oppo pos-idx lists, spin).
Harness/node: +DeckCount/Turn board-state pass-throughs (test reads).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>