[Input][Interaction] Add interactable items

Assets/Scripts/Interactable.cs

@@ -0,0 +1,20 @@
+using UnityEngine;
+using System;
+
+public class Interactable : MonoBehaviour, ITouchInputConsumer
+{
+    public event Action Interacted;
+
+    // Called by InputManager when this interactable is clicked/touched
+    public void OnTouchPress(Vector2 worldPosition)
+    {
+        Debug.Log($"Interactable.OnTouchPress at {worldPosition} on {gameObject.name}");
+        Interacted?.Invoke();
+    }
+
+    public void OnTouchPosition(Vector2 screenPosition)
+    {
+        // Optionally handle drag/move here
+    }
+}
+