refactor: Reorganize layout system into new renderer architecture (#5071)

- Move layout system to renderer/core/layout/
  - Store, operations, adapters, and sync modules organized clearly
  - Merged layoutTypes.ts and layoutOperations.ts into single types.ts
- Move canvas rendering to renderer/core/canvas/
  - LiteGraph-specific code in litegraph/ subdirectory
  - PathRenderer at canvas level
- Move spatial indexing to renderer/core/spatial/
- Move Vue node composables to renderer/extensions/vue-nodes/
- Update all import paths throughout codebase
- Apply consistent naming (renderer vs rendering)

This establishes clearer separation between core rendering concerns
and optional extensions, making the architecture more maintainable.

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

Co-authored-by: Claude <noreply@anthropic.com>

src/components/graph/GraphCanvas.vue

@@ -130,8 +130,6 @@ import type {
   NodeState,
   VueNodeData
 } from '@/composables/graph/useGraphNodeManager'
-import { useLayout } from '@/composables/graph/useLayout'
-import { useLayoutSync } from '@/composables/graph/useLayoutSync'
 import { useNodeBadge } from '@/composables/node/useNodeBadge'
 import { useCanvasDrop } from '@/composables/useCanvasDrop'
 import { useContextMenuTranslation } from '@/composables/useContextMenuTranslation'
@@ -145,6 +143,9 @@ import { useWorkflowPersistence } from '@/composables/useWorkflowPersistence'
 import { CORE_SETTINGS } from '@/constants/coreSettings'
 import { i18n, t } from '@/i18n'
 import type { LGraphCanvas, LGraphNode } from '@/lib/litegraph/src/litegraph'
+import { layoutStore } from '@/renderer/core/layout/store/LayoutStore'
+import { useLayout } from '@/renderer/core/layout/sync/useLayout'
+import { useLayoutSync } from '@/renderer/core/layout/sync/useLayoutSync'
 import { UnauthorizedError, api } from '@/scripts/api'
 import { app as comfyApp } from '@/scripts/app'
 import { ChangeTracker } from '@/scripts/changeTracker'
@@ -155,7 +156,6 @@ import { useWorkflowService } from '@/services/workflowService'
 import { useCommandStore } from '@/stores/commandStore'
 import { useExecutionStore } from '@/stores/executionStore'
 import { useCanvasStore } from '@/stores/graphStore'
-import { layoutStore } from '@/stores/layoutStore'
 import { useNodeDefStore } from '@/stores/nodeDefStore'
 import { useSettingStore } from '@/stores/settingStore'
 import { useToastStore } from '@/stores/toastStore'

src/components/graph/vueNodes/LGraphNode.vue

@@ -92,8 +92,8 @@ import { computed, onErrorCaptured, ref, toRef, watch } from 'vue'
 // Import the VueNodeData type
 import type { VueNodeData } from '@/composables/graph/useGraphNodeManager'
 import { LODLevel, useLOD } from '@/composables/graph/useLOD'
-import { useNodeLayout } from '@/composables/graph/useNodeLayout'
 import { useErrorHandling } from '@/composables/useErrorHandling'
+import { useNodeLayout } from '@/renderer/extensions/vue-nodes/composables/useNodeLayout'
 
 import { LiteGraph } from '../../../lib/litegraph/src/litegraph'
 import NodeContent from './NodeContent.vue'