Defer chain-attack marker addition for ファイアウォール・ドラゴン・ダークフルード until end of Damage Step

[vuryleo]

ファイアウォール・ドラゴン・ダークフルード was unable to perform its chain attack if ③ effect activated before Damage Step.

The chain-attack marker was being added before the Damage Step, but the core resets this attack-related marker during the Damage Step, causing the marker to be cleared before it could be consumed.

ref: processor = 34 (PROCESSOR_BATTLE_COMMAND) step: 19

Test Scenario

--[[message chain attack]]
Debug.SetAIName("Chain Attack")
Debug.ReloadFieldBegin(DUEL_ATTACK_FIRST_TURN+DUEL_SIMPLE_AI,5)
Debug.SetPlayerInfo(0,8000,0,0)
Debug.SetPlayerInfo(1,8000,0,0)

Debug.AddCard(68934651,0,0,LOCATION_EXTRA,0,POS_FACEDOWN)
Debug.AddCard(24731391,0,0,LOCATION_MZONE,0,POS_FACEUP_ATTACK,true)
Debug.AddCard(42717221,0,0,LOCATION_MZONE,1,POS_FACEUP_ATTACK,true)
Debug.AddCard(60279710,0,0,LOCATION_MZONE,2,POS_FACEUP_ATTACK,true)

Debug.AddCard(71607202,1,1,LOCATION_MZONE,0,POS_FACEUP_ATTACK)
Debug.AddCard(82489470,1,1,LOCATION_HAND,0,POS_FACEDOWN)

Debug.ReloadFieldEnd()
Debug.ShowHint("GAME START!")
aux.BeginPuzzle()