feat: code splitting optimization - reduce initial bundle by 36% (#8542)

## Summary

Reduces initial module preload from 12.94 MB to 8.24 MB (-4.7 MB, -36%).

## Changes

- Split vendor chunks for better cache isolation (firebase, sentry,
i18n, zod, etc.)
- Exclude heavy optional chunks from initial preload: THREE.js, xterm,
tiptap, chart.js, yjs
- Lazy load 16 dialog components in dialogService
- Add \endor-yjs\ chunk for CRDT library

## Metrics

| Metric | Before | After |
|--------|--------|-------|
| Initial preload | 12.94 MB | 8.24 MB |
| vendor-other | 4,006 KB | 2,156 KB |
| dialogService | 1,860 KB | 1,304 KB |

All excluded chunks still load on-demand when their features are used.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8542-feat-code-splitting-optimization-reduce-initial-bundle-by-36-2fb6d73d36508146aaf7fdaed3274033)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: github-actions <github-actions@github.com>

src/composables/useCoreCommands.ts

@@ -580,7 +580,7 @@ export function useCoreCommands(): ComfyCommand[] {
       versionAdded: '1.3.7',
       category: 'view-controls' as const,
       function: () => {
-        dialogService.showSettingsDialog()
+        void dialogService.showSettingsDialog()
       }
     },
     {
@@ -829,7 +829,7 @@ export function useCoreCommands(): ComfyCommand[] {
       menubarLabel: 'About ComfyUI',
       versionAdded: '1.6.4',
       function: () => {
-        dialogService.showSettingsDialog('about')
+        void dialogService.showSettingsDialog('about')
       }
     },
     {

src/composables/useHelpCenter.ts

@@ -72,7 +72,7 @@ export function useHelpCenter(
    * Show the node conflict dialog with current conflict data
    */
   const showConflictModal = () => {
-    showNodeConflictDialog({
+    void showNodeConflictDialog({
       showAfterWhatsNew: true,
       dialogComponentProps: {
         onClose: () => {

src/composables/useLoad3dDrag.ts

@@ -1,7 +1,7 @@
 import { computed, ref, toValue } from 'vue'
 import type { MaybeRefOrGetter } from 'vue'
 
-import { SUPPORTED_EXTENSIONS } from '@/extensions/core/load3d/interfaces'
+import { SUPPORTED_EXTENSIONS } from '@/extensions/core/load3d/constants'
 import { t } from '@/i18n'
 import { useToastStore } from '@/platform/updates/common/toastStore'