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/services/dialogService.ts

@@ -25,9 +25,7 @@ import type {
   DialogComponentProps,
   ShowDialogOptions
 } from '@/stores/dialogStore'
-import ManagerProgressDialogContent from '@/workbench/extensions/manager/components/ManagerProgressDialogContent.vue'
-import ManagerProgressFooter from '@/workbench/extensions/manager/components/ManagerProgressFooter.vue'
-import ManagerProgressHeader from '@/workbench/extensions/manager/components/ManagerProgressHeader.vue'
+
 import ManagerDialogContent from '@/workbench/extensions/manager/components/manager/ManagerDialogContent.vue'
 import ManagerHeader from '@/workbench/extensions/manager/components/manager/ManagerHeader.vue'
 import ImportFailedNodeContent from '@/workbench/extensions/manager/components/manager/ImportFailedNodeContent.vue'
@@ -232,30 +230,6 @@ export const useDialogService = () => {
     })
   }
 
-  function showManagerProgressDialog(options?: {
-    props?: InstanceType<typeof ManagerProgressDialogContent>['$props']
-  }) {
-    return dialogStore.showDialog({
-      key: 'global-manager-progress-dialog',
-      component: ManagerProgressDialogContent,
-      headerComponent: ManagerProgressHeader,
-      footerComponent: ManagerProgressFooter,
-      props: options?.props,
-      priority: 2,
-      dialogComponentProps: {
-        closable: false,
-        modal: false,
-        position: 'bottom',
-        pt: {
-          root: { class: 'w-[80%] max-w-2xl mx-auto border-none' },
-          content: { class: 'p-0!' },
-          header: { class: 'p-0! border-none' },
-          footer: { class: 'p-0! border-none' }
-        }
-      }
-    })
-  }
-
   /**
    * Shows a dialog requiring sign in for API nodes
    * @returns Promise that resolves to true if user clicks login, false if cancelled
@@ -443,16 +417,6 @@ export const useDialogService = () => {
     }
   }
 
-  function toggleManagerProgressDialog(
-    props?: ComponentAttrs<typeof ManagerProgressDialogContent>
-  ) {
-    if (dialogStore.isDialogOpen('global-manager-progress-dialog')) {
-      dialogStore.closeDialog({ key: 'global-manager-progress-dialog' })
-    } else {
-      showManagerProgressDialog({ props })
-    }
-  }
-
   function showLayoutDialog(options: {
     key: string
     component: Component
@@ -588,7 +552,6 @@ export const useDialogService = () => {
     showAboutDialog,
     showExecutionErrorDialog,
     showManagerDialog,
-    showManagerProgressDialog,
     showApiNodesSignInDialog,
     showSignInDialog,
     showSubscriptionRequiredDialog,
@@ -599,7 +562,6 @@ export const useDialogService = () => {
     showErrorDialog,
     confirm,
     toggleManagerDialog,
-    toggleManagerProgressDialog,
     showLayoutDialog,
     showImportFailedNodeDialog,
     showNodeConflictDialog