Reorganize scripts into subfolders by responsibility

Move scripts under Assets/Scripts/ into Components, GameMode, Helper,
Network, Enum, Struct and ScriptableObject folders. Pure file moves
(plus folder .meta files); no code changes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/Scripts/GameMode/PaintMode.cs

@@ -0,0 +1,29 @@
+/// <summary>
+/// Player stands still, the mesh is painted with the left mouse button. The
+/// camera orbits only while the right mouse button is held, and the middle
+/// mouse button pans the framing (a temporary offset to line up the model).
+/// </summary>
+public class PaintMode : GameMode
+{
+    public override string DisplayName => "Paint";
+
+    public override void Enter()
+    {
+        SetPlayerControl(false);
+
+        if (Manager.CameraInput)
+        {
+            Manager.CameraInput.LookMode = ThirdPersonOrbitInput.OrbitLookMode.HoldRightMouseButton;
+            Manager.CameraInput.PanEnabled = true;
+        }
+
+        SetPainting(true);
+    }
+
+    public override void Exit()
+    {
+        // Leaving paint mode releases the middle-mouse pan; the orbit input then eases the framing home.
+        if (Manager.CameraInput)
+            Manager.CameraInput.PanEnabled = false;
+    }
+}