feat(battle-engine): M1 auto-copy closure (782 battle-logic files)

Compile-driven bulk-copy loop (tools/engine-port/m1_copy_loop.py) pulled the precise reference closure of the battle-core roots, stopping at the classify god-object/View-VFX-UI boundary. 782 files; no re-explosion (M0 had estimated ~order 1000). Residual frontier = 52 shim-classified + 80 external (Unity/BCL) types to author next.

SVSim.BattleEngine/Engine/UIInputOnGUI.cs

@@ -0,0 +1,30 @@
+using System;
+using UnityEngine;
+
+[RequireComponent(typeof(UIInput))]
+public class UIInputOnGUI : MonoBehaviour
+{
+	private const int KEY_LEFT = 28;
+
+	private const int KEY_RIGHT = 29;
+
+	private const int KEY_UP = 30;
+
+	private const int KEY_DOWN = 31;
+
+	[NonSerialized]
+	private UIInput mInput;
+
+	private void Awake()
+	{
+		mInput = GetComponent<UIInput>();
+	}
+
+	private void OnGUI()
+	{
+		if (Event.current.rawType == EventType.KeyDown)
+		{
+			mInput.ProcessEvent(Event.current);
+		}
+	}
+}