feat(battle-engine): preserve ctor base-initializers + Event/Reward shims (1386->1226)

- Regenerate 31 VFX/View/UI/Touch stubs to keep their decomp ': base(...)' /
  ': this(...)' ctor initializers (m1_stub_gen was dropping them -> CS7036/CS1729
  when the copied base has no parameterless ctor). Whole base-ctor cluster cleared.
- UnityEngine.Event: add rawType/keyCode/modifiers/Use() + EventType enum (NGUI
  UIInput/UIInputOnGUI legacy IMGUI path).
- Reward: copy the real Wizard.Scripts.Network.Data.TaskData.Arena.Reward verbatim
  (was an empty ambiguous-name shim in LooseEnds); deps (UserGoods/JsonData) present.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

SVSim.BattleEngine/Shim/Generated/NullPlayerBattleView.g.cs

@@ -6,7 +6,7 @@ namespace Wizard.Battle.View
 {
 public partial class NullPlayerBattleView
 {
-        public NullPlayerBattleView() { }
+        public NullPlayerBattleView() : base(null) { }
         public VfxBase StartShowSelect(BattleCardBase actCard, SkillBase skill, IEnumerable<BattleCardBase> selectableCards, bool isEvol) => global::Wizard.Battle.View.Vfx.NullVfx.GetInstance();
         public void ShowTurnEndPulseEffect() { }
         public VfxBase HideTurnEndPulseEffect() => global::Wizard.Battle.View.Vfx.NullVfx.GetInstance();