fix: remove timeouts from error toasts so they persist until dismissed (#9543)

## Summary

Remove `life` (timeout) property from all error-severity toast calls so
they persist until manually dismissed, preventing users from missing
important error messages.

## Changes

- **What**: Removed `life` property from 86 error toast calls across 46
files. Error toasts now use PrimeVue's default behavior (no
auto-dismiss). Non-error toasts (success, warn, info) are unchanged.
- Also fixed a pre-existing lint issue in `TaskListPanel.vue` (`import {
t } from '@/i18n'` → `useI18n()`)

## Review Focus

- One conditional toast in `useMediaAssetActions.ts` intentionally keeps
`life` because its severity alternates between `warn` and `error`

Fixes
https://www.notion.so/comfy-org/Implement-Remove-timeouts-for-all-error-toasts-31b6d73d365081cead54fddc77ae7c3d

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9543-fix-remove-timeouts-from-error-toasts-so-they-persist-until-dismissed-31c6d73d365081fa8d30f6366e9bfe38)
by [Unito](https://www.unito.io)

src/platform/assets/composables/useMediaAssetActions.ts

@@ -84,8 +84,7 @@ export function useMediaAssetActions() {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: t('g.failedToDownloadImage'),
-        life: 3000
+        detail: t('g.failedToDownloadImage')
       })
     }
   }
@@ -126,8 +125,7 @@ export function useMediaAssetActions() {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: t('g.failedToDownloadImage'),
-        life: 3000
+        detail: t('g.failedToDownloadImage')
       })
     }
   }
@@ -182,8 +180,7 @@ export function useMediaAssetActions() {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: t('exportToast.exportFailedSingle'),
-        life: 3000
+        detail: t('exportToast.exportFailedSingle')
       })
     }
   }
@@ -238,8 +235,7 @@ export function useMediaAssetActions() {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: t('mediaAsset.nodeTypeNotFound', { nodeType }),
-        life: 3000
+        detail: t('mediaAsset.nodeTypeNotFound', { nodeType })
       })
       return
     }
@@ -252,8 +248,7 @@ export function useMediaAssetActions() {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: t('mediaAsset.failedToCreateNode'),
-        life: 3000
+        detail: t('mediaAsset.failedToCreateNode')
       })
       return
     }
@@ -443,8 +438,7 @@ export function useMediaAssetActions() {
       toast.add({
         severity: 'error',
         summary: t('g.error'),
-        detail: t('mediaAsset.selection.failedToAddNodes'),
-        life: 3000
+        detail: t('mediaAsset.selection.failedToAddNodes')
       })
     } else {
       toast.add({
@@ -676,8 +670,7 @@ export function useMediaAssetActions() {
                   summary: t('g.error'),
                   detail: isSingle
                     ? t('mediaAsset.failedToDeleteAsset')
-                    : t('mediaAsset.selection.failedToDeleteAssets'),
-                  life: 3000
+                    : t('mediaAsset.selection.failedToDeleteAssets')
                 })
               } else {
                 // Partial success (only possible with multiple assets)
@@ -698,8 +691,7 @@ export function useMediaAssetActions() {
                 summary: t('g.error'),
                 detail: isSingle
                   ? t('mediaAsset.failedToDeleteAsset')
-                  : t('mediaAsset.selection.failedToDeleteAssets'),
-                life: 3000
+                  : t('mediaAsset.selection.failedToDeleteAssets')
               })
             } finally {
               // Hide loading overlay for all assets

src/platform/assets/utils/createAssetWidget.ts

@@ -73,8 +73,7 @@ export function createAssetWidget(
           toastStore.add({
             severity: 'error',
             summary: t('assetBrowser.invalidAsset'),
-            detail: t('assetBrowser.invalidAssetDetail'),
-            life: 5000
+            detail: t('assetBrowser.invalidAssetDetail')
           })
           return
         }
@@ -92,8 +91,7 @@ export function createAssetWidget(
           toastStore.add({
             severity: 'error',
             summary: t('assetBrowser.invalidFilename'),
-            detail: t('assetBrowser.invalidFilenameDetail'),
-            life: 5000
+            detail: t('assetBrowser.invalidFilenameDetail')
           })
           return
         }