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/NecromanceSkillActivationVfx.g.cs

@@ -4,6 +4,6 @@ namespace Wizard.Battle.View.Vfx
 {
 public partial class NecromanceSkillActivationVfx
 {
-        public NecromanceSkillActivationVfx(IBattleCardView cardView) { }
+        public NecromanceSkillActivationVfx(IBattleCardView cardView) : base("stt_act_necromance_1", "se_stt_act_necromance_1", () => new Vector3(cardView.GameObject.transform.position.x, cardView.GameObject.transform.position.y, cardView.CardWrapObject.transform.position.z), 0.5f) { }
 }
 }