feat(project): refresh sample scenes and Nahida assets

project/Assets/Scripts/MoveProbe.cs

@@ -0,0 +1,39 @@
+using XCEngine;
+
+namespace ProjectScripts
+{
+    public sealed class MoveProbe : MonoBehaviour
+    {
+        public float moveSpeed = 2f;
+        public float moveRange = 3f;
+
+        private Vector3 initialPos;
+        private float currentOffset;
+        private int direction = 1;
+
+        void Start()
+        {
+            initialPos = transform.position;
+            currentOffset = 0f;
+        }
+
+        void Update()
+        {
+            currentOffset += moveSpeed * Time.deltaTime * direction;
+
+            if (currentOffset >= moveRange)
+            {
+                currentOffset = moveRange;
+                direction = -1;
+            }
+            else if (currentOffset <= 0f)
+            {
+                currentOffset = 0f;
+                direction = 1;
+            }
+
+            float y = initialPos.y + currentOffset;
+            transform.position = new Vector3(initialPos.x, y, initialPos.z);
+        }
+    }
+}