[refactor] Migrate litegraph imports from npm package to local subtree

- Updated all imports from '@comfyorg/litegraph' to '@/lib/litegraph/src/'
- Replaced deep dist imports with direct source paths
- Updated CSS import in main.ts
- All imports now use the @ alias consistently

src/extensions/core/load3d/Load3DConfiguration.ts

@@ -1,7 +1,6 @@
-import type { IBaseWidget } from '@comfyorg/litegraph/dist/types/widgets'
-
 import Load3d from '@/extensions/core/load3d/Load3d'
 import Load3dUtils from '@/extensions/core/load3d/Load3dUtils'
+import type { IBaseWidget } from '@/lib/litegraph/src/types/widgets'
 import { api } from '@/scripts/api'
 import { useSettingStore } from '@/stores/settingStore'
 

src/extensions/core/load3d/Load3d.ts

@@ -1,6 +1,6 @@
-import { LGraphNode } from '@comfyorg/litegraph'
 import * as THREE from 'three'
 
+import { LGraphNode } from '@/lib/litegraph/src/litegraph'
 import { CustomInputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
 
 import { CameraManager } from './CameraManager'

src/extensions/core/load3d/Load3dAnimation.ts

@@ -1,6 +1,7 @@
-import { LGraphNode } from '@comfyorg/litegraph'
 import * as THREE from 'three'
 
+import { LGraphNode } from '@/lib/litegraph/src/litegraph'
+
 import { AnimationManager } from './AnimationManager'
 import Load3d from './Load3d'
 import { Load3DOptions } from './interfaces'

src/extensions/core/load3d/NodeStorage.ts

@@ -1,4 +1,4 @@
-import { LGraphNode } from '@comfyorg/litegraph'
+import { LGraphNode } from '@/lib/litegraph/src/litegraph'
 
 import { NodeStorageInterface } from './interfaces'
 

src/extensions/core/load3d/interfaces.ts

@@ -1,4 +1,3 @@
-import { LGraphNode } from '@comfyorg/litegraph'
 import * as THREE from 'three'
 import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
 import { ViewHelper } from 'three/examples/jsm/helpers/ViewHelper'
@@ -8,6 +7,7 @@ import { MTLLoader } from 'three/examples/jsm/loaders/MTLLoader'
 import { OBJLoader } from 'three/examples/jsm/loaders/OBJLoader'
 import { STLLoader } from 'three/examples/jsm/loaders/STLLoader'
 
+import { LGraphNode } from '@/lib/litegraph/src/litegraph'
 import { CustomInputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
 
 export type Load3DNodeType = 'Load3D' | 'Preview3D'