feat: add HoneyToast component for persistent progress notifications (#7902)

## Summary

Add HoneyToast, a persistent bottom-anchored notification component for
long-running task progress, and migrate existing progress dialogs to use
it.

## Changes

- **What**: 
- New `HoneyToast` component with slot-based API, Teleport, transitions,
and accessibility
  - Migrated `ModelImportProgressDialog` to use HoneyToast
- Created `ManagerProgressToast` combining the old Header/Content/Footer
components
- Deleted deprecated `ManagerProgressDialogContent`,
`ManagerProgressHeader`, `ManagerProgressFooter`, and
`useManagerProgressDialogStore`
- Removed no-op
`showManagerProgressDialog`/`toggleManagerProgressDialog` functions
  - Added Storybook stories for HoneyToast and ProgressToastItem

## Review Focus

- HoneyToast component design and slot API
- ManagerProgressToast self-contained state management (auto-shows when
`comfyManagerStore.taskLogs.length > 0`)
- Accessibility attributes on the toast component

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7902-feat-add-HoneyToast-component-for-persistent-progress-notifications-2e26d73d365081c78ae6edc5accb326e)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: sno <snomiao@gmail.com>
Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: GitHub Action <action@github.com>

src/workbench/extensions/manager/composables/useManagerQueue.ts

@@ -4,7 +4,6 @@ import type { Ref } from 'vue'
 import { computed, ref } from 'vue'
 
 import { app } from '@/scripts/app'
-import { useDialogService } from '@/services/dialogService'
 import { normalizePackKeys } from '@/utils/packUtils'
 import type { components } from '@/workbench/extensions/manager/types/generatedManagerTypes'
 
@@ -27,8 +26,6 @@ export const useManagerQueue = (
   taskQueue: Ref<ManagerTaskQueue>,
   installedPacks: Ref<Record<string, any>>
 ) => {
-  const { showManagerProgressDialog } = useDialogService()
-
   // Task queue state (read-only from server)
   const maxHistoryItems = ref(64)
   const isLoading = ref(false)
@@ -113,15 +110,6 @@ export const useManagerQueue = (
     (event: CustomEvent<ManagerWsTaskDoneMsg>) => {
       if (event?.type === MANAGER_WS_TASK_DONE_NAME && event.detail?.state) {
         updateTaskState(event.detail.state)
-
-        // If no more tasks are running/pending, hide the progress dialog
-        if (allTasksDone.value) {
-          setTimeout(() => {
-            if (allTasksDone.value) {
-              showManagerProgressDialog()
-            }
-          }, 1000) // Small delay to let users see completion
-        }
       }
     }
   )
@@ -133,9 +121,6 @@ export const useManagerQueue = (
     (event: CustomEvent<ManagerWsTaskStartedMsg>) => {
       if (event?.type === MANAGER_WS_TASK_STARTED_NAME && event.detail?.state) {
         updateTaskState(event.detail.state)
-
-        // Show progress dialog when a task starts
-        showManagerProgressDialog()
       }
     }
   )