[Test] Add playwright test on litegraph native reroute (#3033)

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browser_tests/fixtures/utils/litegraphUtils.ts

@@ -1,10 +1,17 @@
 import type { Page } from '@playwright/test'
 
-import type { NodeId } from '../../../src/types/comfyWorkflow'
+import type { NodeId } from '../../../src/schemas/comfyWorkflowSchema'
 import { ManageGroupNode } from '../../helpers/manageGroupNode'
 import type { ComfyPage } from '../ComfyPage'
 import type { Position, Size } from '../types'
 
+export const getMiddlePoint = (pos1: Position, pos2: Position) => {
+  return {
+    x: (pos1.x + pos2.x) / 2,
+    y: (pos1.y + pos2.y) / 2
+  }
+}
+
 export class NodeSlotReference {
   constructor(
     readonly type: 'input' | 'output',