first commit

Assets/_Scripts/DepthOfFieldController.cs

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+using UnityEngine;
+
+public class DepthOfFieldController : MonoBehaviour
+{
+    public bool IsFocusEnabled { get; private set; }
+    public Transform FocusTarget { get; private set; }
+
+    public void EnableFocus(Transform focusTarget)
+    {
+        IsFocusEnabled = true;
+        FocusTarget = focusTarget;
+
+        // In a project with Post Processing or URP Volume, enable Depth of Field here
+        // and update focus distance from the active camera to FocusTarget.
+    }
+
+    public void DisableFocus()
+    {
+        IsFocusEnabled = false;
+        FocusTarget = null;
+
+        // Disable the real Depth of Field override here when a post-processing stack is connected.
+    }
+}