test: Fix useTransformState since it's now a singleton composable.

Author: DrJKL

tests-ui/tests/composables/element/useTransformState.test.ts

@@ -1,6 +1,7 @@
 import { beforeEach, describe, expect, it } from 'vitest'
 
 import { useTransformState } from '@/renderer/core/layout/transform/useTransformState'
+import type { LGraphCanvas } from '@/lib/litegraph/src/LGraphCanvas'
 
 // Create a mock canvas context for transform testing
 function createMockCanvasContext() {
@@ -27,10 +28,12 @@ function createMockCanvasContext() {
 }
 
 describe('useTransformState', () => {
-  let transformState: ReturnType<typeof useTransformState>
+  const transformState = useTransformState()
 
   beforeEach(() => {
-    transformState = useTransformState()
+    transformState.syncWithCanvas({
+      ds: { offset: [0, 0] }
+    } as unknown as LGraphCanvas)
   })
 
   describe('initial state', () => {