feat(control): spawn session NPCs and resize tokens in preview

Co-authored-by: Cursor <cursoragent@cursor.com>

app/renderer/shared/playerToken/SceneNpcTokensOverlay.module.css

@@ -17,6 +17,10 @@
   pointer-events: none;
 }
 
+.token > .resizeHandle {
+  pointer-events: auto;
+}
+
 .editable {
   pointer-events: auto;
   cursor: grab;
@@ -25,3 +29,18 @@
 .editable:active {
   cursor: grabbing;
 }
+
+.resizeHandle {
+  position: absolute;
+  right: -5px;
+  bottom: -5px;
+  width: 12px;
+  height: 12px;
+  border-radius: 2px;
+  background: #f5c542;
+  border: 1px solid #000;
+  cursor: nwse-resize;
+  touch-action: none;
+  pointer-events: auto;
+  z-index: 2;
+}