[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/stores/executionStore.ts

@@ -1,10 +1,10 @@
-import type { LGraph, Subgraph } from '@comfyorg/litegraph'
 import { defineStore } from 'pinia'
 import { computed, ref } from 'vue'
 
 import type ChatHistoryWidget from '@/components/graph/widgets/ChatHistoryWidget.vue'
 import { useNodeChatHistory } from '@/composables/node/useNodeChatHistory'
 import { useNodeProgressText } from '@/composables/node/useNodeProgressText'
+import type { LGraph, Subgraph } from '@/lib/litegraph/src/litegraph'
 import type {
   DisplayComponentWsMessage,
   ExecutedWsMessage,

src/stores/graphStore.ts

@@ -1,8 +1,12 @@
-import type { LGraphCanvas, LGraphGroup, LGraphNode } from '@comfyorg/litegraph'
-import type { Positionable } from '@comfyorg/litegraph/dist/interfaces'
 import { defineStore } from 'pinia'
 import { type Raw, computed, markRaw, ref, shallowRef } from 'vue'
 
+import type { Positionable } from '@/lib/litegraph/src/interfaces'
+import type {
+  LGraphCanvas,
+  LGraphGroup,
+  LGraphNode
+} from '@/lib/litegraph/src/litegraph'
 import { isLGraphGroup, isLGraphNode, isReroute } from '@/utils/litegraphUtil'
 
 export const useTitleEditorStore = defineStore('titleEditor', () => {

src/stores/imagePreviewStore.ts

@@ -1,6 +1,6 @@
-import { LGraphNode } from '@comfyorg/litegraph'
 import { defineStore } from 'pinia'
 
+import { LGraphNode } from '@/lib/litegraph/src/litegraph'
 import {
   ExecutedWsMessage,
   ResultItem,

src/stores/nodeDefStore.ts

@@ -1,9 +1,9 @@
-import type { LGraphNode } from '@comfyorg/litegraph'
 import axios from 'axios'
 import _ from 'lodash'
 import { defineStore } from 'pinia'
 import { computed, ref } from 'vue'
 
+import type { LGraphNode } from '@/lib/litegraph/src/litegraph'
 import { transformNodeDefV1ToV2 } from '@/schemas/nodeDef/migration'
 import type {
   ComfyNodeDef as ComfyNodeDefV2,

src/stores/subgraphNavigationStore.ts

@@ -1,9 +1,9 @@
 import QuickLRU from '@alloc/quick-lru'
-import type { Subgraph } from '@comfyorg/litegraph'
-import type { DragAndScaleState } from '@comfyorg/litegraph/dist/DragAndScale'
 import { defineStore } from 'pinia'
 import { computed, ref, shallowRef, watch } from 'vue'
 
+import type { DragAndScaleState } from '@/lib/litegraph/src/DragAndScale'
+import type { Subgraph } from '@/lib/litegraph/src/litegraph'
 import { app } from '@/scripts/app'
 import { findSubgraphPathById } from '@/utils/graphTraversalUtil'
 import { isNonNullish } from '@/utils/typeGuardUtil'

src/stores/workflowStore.ts

@@ -1,8 +1,8 @@
-import type { LGraph, Subgraph } from '@comfyorg/litegraph'
 import _ from 'lodash'
 import { defineStore } from 'pinia'
 import { type Raw, computed, markRaw, ref, shallowRef, watch } from 'vue'
 
+import type { LGraph, Subgraph } from '@/lib/litegraph/src/litegraph'
 import { ComfyWorkflowJSON } from '@/schemas/comfyWorkflowSchema'
 import type { NodeId } from '@/schemas/comfyWorkflowSchema'
 import { api } from '@/scripts/api'