[backport core/1.42] fix: disable preload error toast triggered by third-party plugin failures (#10445) (#10889)

Backport of #10445 to core/1.42

Conflict resolution: App.vue import conflict — kept both useToastStore
and useSettingStore imports.

Co-authored-by: Terry Jia <terryjia88@gmail.com>

src/App.vue

@@ -9,11 +9,10 @@ import { captureException } from '@sentry/vue'
 import BlockUI from 'primevue/blockui'
 import { computed, onMounted, watch } from 'vue'
 
-import { useI18n } from 'vue-i18n'
-
 import GlobalDialog from '@/components/dialog/GlobalDialog.vue'
 import config from '@/config'
 import { isDesktop } from '@/platform/distribution/types'
+import { useSettingStore } from '@/platform/settings/settingStore'
 import { useToastStore } from '@/platform/updates/common/toastStore'
 import { app } from '@/scripts/app'
 import { useWorkspaceStore } from '@/stores/workspaceStore'
@@ -21,7 +20,6 @@ import { electronAPI } from '@/utils/envUtil'
 import { parsePreloadError } from '@/utils/preloadErrorUtil'
 import { useConflictDetection } from '@/workbench/extensions/manager/composables/useConflictDetection'
 
-const { t } = useI18n()
 const workspaceStore = useWorkspaceStore()
 app.extensionManager = useWorkspaceStore()
 
@@ -96,12 +94,17 @@ onMounted(() => {
         }
       })
     }
-    useToastStore().add({
-      severity: 'error',
-      summary: t('g.preloadErrorTitle'),
-      detail: t('g.preloadError'),
-      life: 10000
-    })
+    // Disabled: Third-party custom node extensions frequently trigger this toast
+    // (e.g., bare "vue" imports, wrong relative paths to scripts/app.js, missing
+    // core dependencies). These are plugin bugs, not ComfyUI core failures, but
+    // the generic error message alarms users and offers no actionable guidance.
+    // The console.error above still logs the details for developers to debug.
+    // useToastStore().add({
+    //   severity: 'error',
+    //   summary: t('g.preloadErrorTitle'),
+    //   detail: t('g.preloadError'),
+    //   life: 10000
+    // })
   })
 
   // Capture resource load failures (CSS, scripts) in non-localhost distributions