test: remove unused DebugHelper from browser_tests (#9017)

## Summary

- Remove unused `DebugHelper` class and its import from browser test
fixtures

Fixes #8581

## Test plan

- [x] Verify browser tests still pass without `DebugHelper`

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9017-test-remove-unused-DebugHelper-from-browser_tests-30d6d73d36508158b8c9fc83670df4f3)
by [Unito](https://www.unito.io)

browser_tests/fixtures/ComfyPage.ts

@@ -26,7 +26,6 @@ import { Topbar } from './components/Topbar'
 import { CanvasHelper } from './helpers/CanvasHelper'
 import { ClipboardHelper } from './helpers/ClipboardHelper'
 import { CommandHelper } from './helpers/CommandHelper'
-import { DebugHelper } from './helpers/DebugHelper'
 import { DragDropHelper } from './helpers/DragDropHelper'
 import { KeyboardHelper } from './helpers/KeyboardHelper'
 import { NodeOperationsHelper } from './helpers/NodeOperationsHelper'
@@ -174,7 +173,6 @@ export class ComfyPage {
   public readonly settingDialog: SettingDialog
   public readonly confirmDialog: ConfirmDialog
   public readonly vueNodes: VueNodeHelpers
-  public readonly debug: DebugHelper
   public readonly subgraph: SubgraphHelper
   public readonly canvasOps: CanvasHelper
   public readonly nodeOps: NodeOperationsHelper
@@ -219,7 +217,6 @@ export class ComfyPage {
     this.settingDialog = new SettingDialog(page, this)
     this.confirmDialog = new ConfirmDialog(page)
     this.vueNodes = new VueNodeHelpers(page)
-    this.debug = new DebugHelper(page, this.canvas)
     this.subgraph = new SubgraphHelper(this)
     this.canvasOps = new CanvasHelper(page, this.canvas, this.resetViewButton)
     this.nodeOps = new NodeOperationsHelper(this)

browser_tests/fixtures/helpers/DebugHelper.ts

@@ -1,167 +0,0 @@
-import type { Locator, Page, TestInfo } from '@playwright/test'
-
-import type { Position } from '../types'
-
-export interface DebugScreenshotOptions {
-  fullPage?: boolean
-  element?: 'canvas' | 'page'
-  markers?: Array<{ position: Position; id?: string }>
-}
-
-export class DebugHelper {
-  constructor(
-    private page: Page,
-    private canvas: Locator
-  ) {}
-
-  async addMarker(
-    position: Position,
-    id: string = 'debug-marker'
-  ): Promise<void> {
-    await this.page.evaluate(
-      ([pos, markerId]) => {
-        const existing = document.getElementById(markerId)
-        if (existing) existing.remove()
-
-        const marker = document.createElement('div')
-        marker.id = markerId
-        marker.style.position = 'fixed'
-        marker.style.left = `${pos.x - 10}px`
-        marker.style.top = `${pos.y - 10}px`
-        marker.style.width = '20px'
-        marker.style.height = '20px'
-        marker.style.border = '2px solid red'
-        marker.style.borderRadius = '50%'
-        marker.style.backgroundColor = 'rgba(255, 0, 0, 0.3)'
-        marker.style.pointerEvents = 'none'
-        marker.style.zIndex = '10000'
-        document.body.appendChild(marker)
-      },
-      [position, id] as const
-    )
-  }
-
-  async removeMarkers(): Promise<void> {
-    await this.page.evaluate(() => {
-      document
-        .querySelectorAll('[id^="debug-marker"]')
-        .forEach((el) => el.remove())
-    })
-  }
-
-  async attachScreenshot(
-    testInfo: TestInfo,
-    name: string,
-    options?: DebugScreenshotOptions
-  ): Promise<void> {
-    if (options?.markers) {
-      for (const marker of options.markers) {
-        await this.addMarker(marker.position, marker.id)
-      }
-    }
-
-    let screenshot: Buffer
-    const targetElement = options?.element || 'page'
-
-    if (targetElement === 'canvas') {
-      screenshot = await this.canvas.screenshot()
-    } else if (options?.fullPage) {
-      screenshot = await this.page.screenshot({ fullPage: true })
-    } else {
-      screenshot = await this.page.screenshot()
-    }
-
-    await testInfo.attach(name, {
-      body: screenshot,
-      contentType: 'image/png'
-    })
-
-    if (options?.markers) {
-      await this.removeMarkers()
-    }
-  }
-
-  async saveCanvasScreenshot(filename: string): Promise<void> {
-    await this.page.evaluate(async (filename) => {
-      const canvas = document.getElementById(
-        'graph-canvas'
-      ) as HTMLCanvasElement
-      if (!canvas) {
-        throw new Error('Canvas not found')
-      }
-
-      return new Promise<void>((resolve) => {
-        canvas.toBlob(async (blob) => {
-          if (!blob) {
-            throw new Error('Failed to create blob from canvas')
-          }
-
-          const url = URL.createObjectURL(blob)
-          const a = document.createElement('a')
-          a.href = url
-          a.download = filename
-          document.body.appendChild(a)
-          a.click()
-          document.body.removeChild(a)
-          URL.revokeObjectURL(url)
-          resolve()
-        }, 'image/png')
-      })
-    }, filename)
-  }
-
-  async getCanvasDataURL(): Promise<string> {
-    return await this.page.evaluate(() => {
-      const canvas = document.getElementById(
-        'graph-canvas'
-      ) as HTMLCanvasElement
-      if (!canvas) {
-        throw new Error('Canvas not found')
-      }
-      return canvas.toDataURL('image/png')
-    })
-  }
-
-  async showCanvasOverlay(): Promise<void> {
-    await this.page.evaluate(() => {
-      const canvas = document.getElementById(
-        'graph-canvas'
-      ) as HTMLCanvasElement
-      if (!canvas) {
-        throw new Error('Canvas not found')
-      }
-
-      const existingOverlay = document.getElementById('debug-canvas-overlay')
-      if (existingOverlay) {
-        existingOverlay.remove()
-      }
-
-      const overlay = document.createElement('div')
-      overlay.id = 'debug-canvas-overlay'
-      overlay.style.position = 'fixed'
-      overlay.style.top = '0'
-      overlay.style.left = '0'
-      overlay.style.zIndex = '9999'
-      overlay.style.backgroundColor = 'white'
-      overlay.style.padding = '10px'
-      overlay.style.border = '2px solid red'
-
-      const img = document.createElement('img')
-      img.src = canvas.toDataURL('image/png')
-      img.style.maxWidth = '800px'
-      img.style.maxHeight = '600px'
-      overlay.appendChild(img)
-
-      document.body.appendChild(overlay)
-    })
-  }
-
-  async hideCanvasOverlay(): Promise<void> {
-    await this.page.evaluate(() => {
-      const overlay = document.getElementById('debug-canvas-overlay')
-      if (overlay) {
-        overlay.remove()
-      }
-    })
-  }
-}