Add Centralized Vue Node Size/Pos Tracking (#5442)

* add dom element resize observer registry for vue node components

* Update src/renderer/extensions/vueNodes/composables/useVueNodeResizeTracking.ts

Co-authored-by: AustinMroz <austin@comfy.org>

* refactor(vue-nodes): typed TransformState InjectionKey, safer ResizeObserver sizing, centralized slot tracking, and small readability updates

* chore: make TransformState interface non-exported to satisfy knip pre-push

* Revert "chore: make TransformState interface non-exported to satisfy knip pre-push"

This reverts commit 110ecf31da.

* Revert "refactor(vue-nodes): typed TransformState InjectionKey, safer ResizeObserver sizing, centralized slot tracking, and small readability updates"

This reverts commit 428752619c.

* [refactor] Improve resize tracking composable documentation and test utilities

- Rename parameters in useVueElementTracking for clarity (appIdentifier, trackingType)
- Add comprehensive docstring with examples to prevent DOM attribute confusion
- Extract mountLGraphNode test utility to eliminate repetitive mock setup
- Add technical implementation notes documenting optimization decisions

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* remove typo comment

* convert to functional bounds collection

* remove inline import

* add interfaces for bounds mutations

* remove change log

* fix bounds collection when vue nodes turned off

* fix title offset on y

* move from resize observer to selection toolbox bounds

---------

Co-authored-by: AustinMroz <austin@comfy.org>
Co-authored-by: Benjamin Lu <benjaminlu1107@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>

tests-ui/tests/renderer/extensions/vueNodes/components/LGraphNode.spec.ts

@@ -0,0 +1,116 @@
+import { mount } from '@vue/test-utils'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { ref } from 'vue'
+
+import type { VueNodeData } from '@/composables/graph/useGraphNodeManager'
+import { SelectedNodeIdsKey } from '@/renderer/core/canvas/injectionKeys'
+import LGraphNode from '@/renderer/extensions/vueNodes/components/LGraphNode.vue'
+import { useVueElementTracking } from '@/renderer/extensions/vueNodes/composables/useVueNodeResizeTracking'
+
+vi.mock(
+  '@/renderer/extensions/vueNodes/composables/useVueNodeResizeTracking',
+  () => ({
+    useVueElementTracking: vi.fn()
+  })
+)
+
+vi.mock('@/composables/useErrorHandling', () => ({
+  useErrorHandling: () => ({
+    toastErrorHandler: vi.fn()
+  })
+}))
+
+vi.mock('@/renderer/extensions/vueNodes/layout/useNodeLayout', () => ({
+  useNodeLayout: () => ({
+    position: { x: 100, y: 50 },
+    startDrag: vi.fn(),
+    handleDrag: vi.fn(),
+    endDrag: vi.fn()
+  })
+}))
+
+vi.mock('@/renderer/extensions/vueNodes/lod/useLOD', () => ({
+  useLOD: () => ({
+    lodLevel: { value: 0 },
+    shouldRenderWidgets: { value: true },
+    shouldRenderSlots: { value: true },
+    shouldRenderContent: { value: false },
+    lodCssClass: { value: '' }
+  }),
+  LODLevel: { MINIMAL: 0 }
+}))
+
+describe('LGraphNode', () => {
+  const mockNodeData: VueNodeData = {
+    id: 'test-node-123',
+    title: 'Test Node',
+    type: 'TestNode',
+    mode: 0,
+    flags: {},
+    inputs: [],
+    outputs: [],
+    widgets: [],
+    selected: false,
+    executing: false
+  }
+
+  const mountLGraphNode = (props: any, selectedNodeIds = new Set()) => {
+    return mount(LGraphNode, {
+      props,
+      global: {
+        provide: {
+          [SelectedNodeIdsKey as symbol]: ref(selectedNodeIds)
+        }
+      }
+    })
+  }
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should call resize tracking composable with node ID', () => {
+    mountLGraphNode({ nodeData: mockNodeData })
+
+    expect(useVueElementTracking).toHaveBeenCalledWith('test-node-123', 'node')
+  })
+
+  it('should render with data-node-id attribute', () => {
+    const wrapper = mountLGraphNode({ nodeData: mockNodeData })
+
+    expect(wrapper.attributes('data-node-id')).toBe('test-node-123')
+  })
+
+  it('should render node title', () => {
+    const wrapper = mountLGraphNode({ nodeData: mockNodeData })
+
+    expect(wrapper.text()).toContain('Test Node')
+  })
+
+  it('should apply selected styling when selected prop is true', () => {
+    const wrapper = mountLGraphNode(
+      { nodeData: mockNodeData, selected: true },
+      new Set(['test-node-123'])
+    )
+
+    expect(wrapper.classes()).toContain('border-blue-500')
+    expect(wrapper.classes()).toContain('ring-2')
+    expect(wrapper.classes()).toContain('ring-blue-300')
+  })
+
+  it('should apply executing animation when executing prop is true', () => {
+    const wrapper = mountLGraphNode({ nodeData: mockNodeData, executing: true })
+
+    expect(wrapper.classes()).toContain('animate-pulse')
+  })
+
+  it('should emit node-click event on pointer down', async () => {
+    const wrapper = mountLGraphNode({ nodeData: mockNodeData })
+
+    await wrapper.trigger('pointerdown')
+
+    expect(wrapper.emitted('node-click')).toHaveLength(1)
+    expect(wrapper.emitted('node-click')?.[0]).toHaveLength(2)
+    expect(wrapper.emitted('node-click')?.[0][1]).toEqual(mockNodeData)
+  })
+})