fix(desktop): make host message queue compact and readable

src/web-ui/src/flow_chat/components/HostPendingQueuePanel.scss

@@ -0,0 +1,36 @@
+.host-pending-queue {
+  padding: var(--openbitfun-space-2) var(--openbitfun-space-3);
+  gap: var(--openbitfun-space-1);
+  font-size: var(--openbitfun-type-body-sm-font-size);
+
+  [data-openbitfun-component='chat-composer-queue'][data-openbitfun-part='header'] {
+    justify-content: space-between;
+  }
+  &__toggle { padding: 0; color: var(--openbitfun-color-content-secondary); }
+  &__note, &__error {
+    margin: 0;
+    font-size: var(--openbitfun-type-body-sm-font-size);
+    line-height: var(--openbitfun-type-body-sm-line-height);
+    color: var(--openbitfun-color-content-secondary);
+    overflow-wrap: anywhere;
+  }
+  [data-openbitfun-component='chat-composer-queue'][data-openbitfun-part='list'][hidden] { display: none; }
+  [data-openbitfun-component='chat-composer-queue'][data-openbitfun-part='item'] {
+    flex-shrink: 0;
+    grid-template-columns: minmax(0, 1fr) auto;
+  }
+  [data-openbitfun-component='chat-composer-queue'][data-openbitfun-part='content'] {
+    font-size: var(--openbitfun-type-body-sm-font-size);
+    line-height: var(--openbitfun-type-body-sm-line-height);
+    gap: 0;
+  }
+  [data-openbitfun-component='chat-composer-queue'][data-openbitfun-part='actions'] {
+    opacity: 1;
+    pointer-events: auto;
+    gap: var(--openbitfun-space-1);
+  }
+  &__status {
+    font-size: var(--openbitfun-type-meta-font-size);
+    color: var(--openbitfun-color-content-muted);
+  }
+}

src/web-ui/src/flow_chat/components/HostPendingQueuePanel.test.tsx

@@ -56,3 +56,40 @@ it.each([false, true])('keeps a normal send hidden and shows recovery only on fa
     container.remove();
   }
 });
+
+it('keeps four queued messages compact, exposes actions, and toggles help independently', async () => {
+  const requests: string[] = [];
+  let items = Array.from({ length: 4 }, (_, index) => ({ turnId: String(index), displayContent: String(index + 1),
+    status: 'queued' as const, previewTruncated: false, attachmentCount: 0, agentType: 'Standard',
+    createdAtMs: 1, reason: null, targetTurnId: null, steeringId: null }));
+  const queue = new HostDialogQueue('scope', 'session', async request => {
+    requests.push(request.action);
+    if (request.action === 'cancel' || request.action === 'promote') items = items.filter(item => item.turnId !== request.turnId);
+    return { sessionId: 'session', queueEpoch: 'epoch', revision: requests.length, activeTurnId: 'active',
+      items, capacity: 20, used: items.length, receipt: null };
+  }, { list: async () => [], put: async () => {}, remove: async () => {} });
+  const container = document.createElement('div');
+  document.body.append(container);
+  const root = createRoot(container);
+  try {
+    await act(async () => root.render(<HostPendingQueuePanel queue={queue} onRestore={() => true} />));
+    expect(container.querySelectorAll('li')).toHaveLength(4);
+    expect(container.textContent).not.toContain('hostQueue.memoryNotice');
+    expect(container.textContent).not.toContain('hostQueue.queued');
+    expect(container.querySelectorAll('[aria-label="hostQueue.sendNow"]')).toHaveLength(4);
+    const toggle = container.querySelector<HTMLButtonElement>('.host-pending-queue__toggle')!;
+    await act(async () => toggle.click());
+    expect(container.querySelector('ul')?.hidden).toBe(true);
+    await act(async () => container.querySelector<HTMLButtonElement>('[aria-label="hostQueue.about"]')!.click());
+    expect(container.textContent).toContain('hostQueue.memoryNotice');
+    await act(async () => toggle.click());
+    await act(async () => container.querySelector<HTMLButtonElement>('[aria-label="hostQueue.sendNow"]')!.click());
+    expect(requests).toContain('promote');
+    expect(container.querySelectorAll('li')).toHaveLength(3);
+    await act(async () => container.querySelector<HTMLButtonElement>('[aria-label="hostQueue.cancel"]')!.click());
+    expect(container.querySelectorAll('li')).toHaveLength(2);
+  } finally {
+    await act(async () => root.unmount());
+    container.remove();
+  }
+});

src/web-ui/src/flow_chat/components/HostPendingQueuePanel.tsx

@@ -1,8 +1,10 @@
 import { pendingQueueManager } from '../services/flow-chat-manager/PendingQueueModule';
 import type { QueuedMessage } from '../types/flow-chat';
-import { useEffect, useState, useSyncExternalStore } from 'react';
+import { useEffect, useId, useState, useSyncExternalStore } from 'react';
 import { useI18n } from '@/infrastructure/i18n';
-import { Button } from '@openbitfun/ui';
+import { Button, IconButton, OverflowText, Tooltip } from '@openbitfun/ui';
+import { ArrowUp, ChevronDown, ChevronUp, Info, Pencil, RotateCw, X } from 'lucide-react';
+import './HostPendingQueuePanel.scss';
 import { HostDialogQueue, observeHostQueue, type QueueOutboxRecord, type QueueItem } from '../../../../shared/dialog-queue/HostDialogQueue';
 import {
   ChatComposerQueue, ChatComposerQueueHeader, ChatComposerQueueTitle,
@@ -12,6 +14,9 @@ import {
 export function HostPendingQueuePanel({ queue, onRestore }: { queue: HostDialogQueue; onRestore: (item: QueuedMessage) => boolean }) {
   const { t } = useI18n('flow-chat');
   const view = useSyncExternalStore(queue.subscribe, queue.getSnapshot, queue.getSnapshot);
+  const [expanded, setExpanded] = useState(true);
+  const [showHelp, setShowHelp] = useState(false);
+  const listId = useId();
   const [busy, setBusy] = useState(false);
   const [error, setError] = useState<string | null>(null);
   useEffect(() => observeHostQueue(queue), [queue]);
@@ -47,37 +52,44 @@ export function HostPendingQueuePanel({ queue, onRestore }: { queue: HostDialogQ
   const items = view.snapshot?.items ?? [];
   const visibleError = error || (view.error?.includes('Session is not loaded') ? null : view.error);
   if (!items.length && !view.pending.length && !visibleError) return null;
-  return <ChatComposerQueue aria-label={t('hostQueue.title')}>
-    <ChatComposerQueueHeader><ChatComposerQueueTitle count={items.length}>{t('hostQueue.title')}</ChatComposerQueueTitle></ChatComposerQueueHeader>
-    <p>{t('hostQueue.memoryNotice')}</p>
-    {visibleError && <div role="alert">{visibleError}<Button size="sm" disabled={busy} onClick={() => void run(() => queue.refresh())}>{t('hostQueue.refresh')}</Button></div>}
-    <ChatComposerQueueList>
-      {items.map(item => <ChatComposerQueueItem key={item.turnId} state={item.status === 'blocked' ? 'failed' : item.status === 'steering_pending' ? 'sending' : 'default'}>
-        <ChatComposerQueueItemContent>
-          <div>{item.displayContent}</div>
-          <span>{item.status === 'blocked' ? t('hostQueue.blocked') : item.status === 'steering_pending' ? t('hostQueue.steeringPending') : t('hostQueue.queued')}</span>
-          {item.attachmentCount > 0 && <span>{t('hostQueue.attachments', { count: item.attachmentCount })}</span>}
-          {item.reason && <p>{item.reason}</p>}
+  return <ChatComposerQueue data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="root" className="host-pending-queue" aria-label={t('hostQueue.title')}>
+    <ChatComposerQueueHeader data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="header">
+      <Button variant="text" size="xs" className="host-pending-queue__toggle" aria-expanded={expanded} aria-controls={listId}
+        onClick={() => setExpanded(value => !value)} trailingIcon={expanded ? <ChevronDown size={14} /> : <ChevronUp size={14} />}>
+        <ChatComposerQueueTitle data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="title" count={items.length + view.pending.length}>{t('hostQueue.title')}</ChatComposerQueueTitle>
+      </Button>
+      <Tooltip content={t('hostQueue.about')}><IconButton size="xs" aria-label={t('hostQueue.about')} aria-expanded={showHelp}
+        icon={<Info size={14} />} onClick={() => setShowHelp(value => !value)} /></Tooltip>
+    </ChatComposerQueueHeader>
+    {showHelp && <p data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="status" className="host-pending-queue__note">{t('hostQueue.memoryNotice')}</p>}
+    {visibleError && <div data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="status" role="alert" className="host-pending-queue__error">{visibleError}<Button size="xs" variant="text" disabled={busy} onClick={() => void run(() => queue.refresh())}>{t('hostQueue.refresh')}</Button></div>}
+    <ChatComposerQueueList data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="list" id={listId} hidden={!expanded}>
+      {items.map(item => <ChatComposerQueueItem data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="item" key={item.turnId} state={item.status === 'blocked' ? 'failed' : item.status === 'steering_pending' ? 'sending' : 'default'}>
+        <ChatComposerQueueItemContent data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="content">
+          <OverflowText title={item.displayContent}>{item.displayContent || t('pendingQueue.emptyPlaceholder')}</OverflowText>
+          {item.status !== 'queued' && <span className="host-pending-queue__status">{item.status === 'blocked' ? t('hostQueue.blocked') : t('hostQueue.steeringPending')}</span>}
+          {item.attachmentCount > 0 && <span className="host-pending-queue__status">{t('hostQueue.attachments', { count: item.attachmentCount })}</span>}
+          {item.reason && <OverflowText className="host-pending-queue__status" title={item.reason}>{item.reason}</OverflowText>}
         </ChatComposerQueueItemContent>
-        <ChatComposerQueueItemActions>
-          <Button size="sm" disabled={busy || !!view.error || item.status === 'steering_pending'} onClick={() => void run(async () => {
+        <ChatComposerQueueItemActions data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="actions">
+          <Tooltip content={t('hostQueue.edit')}><IconButton size="xs" aria-label={t('hostQueue.edit')} icon={<Pencil size={14} />} disabled={busy || !!view.error || item.status === 'steering_pending'} onClick={() => void run(async () => {
             const saved = await queue.savedDraft(item.turnId);
             if (!saved || saved.request.action !== 'submit') throw new Error(t('hostQueue.noDraft'));
             await restoreDraft(saved, item);
-          })}>{t('hostQueue.edit')}</Button>
-          <Button size="sm" disabled={busy || !!view.error || item.status === 'steering_pending'} onClick={() => void run(() => queue.act(item, 'promote'))}>{t('hostQueue.sendNow')}</Button>
-          <Button size="sm" disabled={busy || !!view.error || item.status === 'steering_pending'} onClick={() => void run(() => queue.act(item, 'cancel'))}>{t('hostQueue.cancel')}</Button>
+          })} /></Tooltip>
+          <Tooltip content={t('hostQueue.sendNow')}><IconButton size="xs" aria-label={t('hostQueue.sendNow')} icon={<ArrowUp size={14} />} disabled={busy || !!view.error || item.status === 'steering_pending'} onClick={() => void run(() => queue.act(item, 'promote'))} /></Tooltip>
+          <Tooltip content={t('hostQueue.cancel')}><IconButton size="xs" aria-label={t('hostQueue.cancel')} icon={<X size={14} />} disabled={busy || !!view.error || item.status === 'steering_pending'} onClick={() => void run(() => queue.act(item, 'cancel'))} /></Tooltip>
         </ChatComposerQueueItemActions>
       </ChatComposerQueueItem>)}
-      {view.pending.map(record => <ChatComposerQueueItem key={record.key} state="failed">
-        <ChatComposerQueueItemContent>{t('hostQueue.unknown')}
-          {record.request.action === 'submit' && <div>{record.request.message.displayContent ?? record.request.message.content}</div>}
+      {view.pending.map(record => <ChatComposerQueueItem data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="item" key={record.key} state="failed">
+        <ChatComposerQueueItemContent data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="content"><OverflowText className="host-pending-queue__status" title={t('hostQueue.unknown')}>{t('hostQueue.unknown')}</OverflowText>
+          {record.request.action === 'submit' && <OverflowText title={record.request.message.displayContent ?? record.request.message.content}>{record.request.message.displayContent ?? record.request.message.content}</OverflowText>}
         </ChatComposerQueueItemContent>
-        <ChatComposerQueueItemActions>
+        <ChatComposerQueueItemActions data-openbitfun-product-component="pending-queue-panel" data-openbitfun-product-part="actions">
           {record.restoreIntent && record.request.action === 'submit'
-            ? <Button size="sm" disabled={busy} onClick={() => void run(() => restoreDraft(record))}>{t('hostQueue.edit')}</Button>
-            : <Button size="sm" disabled={busy} onClick={() => void run(() => queue.retry(record))}>{t('hostQueue.checkRetry')}</Button>}
-          <Button size="sm" disabled={busy} onClick={() => void run(() => queue.dismiss(record))}>{t('hostQueue.dismiss')}</Button>
+            ? <IconButton size="xs" aria-label={t('hostQueue.edit')} title={t('hostQueue.edit')} icon={<Pencil size={14} />} disabled={busy} onClick={() => void run(() => restoreDraft(record))} />
+            : <IconButton size="xs" aria-label={t('hostQueue.checkRetry')} title={t('hostQueue.checkRetry')} icon={<RotateCw size={14} />} disabled={busy} onClick={() => void run(() => queue.retry(record))} />}
+          <IconButton size="xs" aria-label={t('hostQueue.dismiss')} title={t('hostQueue.dismiss')} icon={<X size={14} />} disabled={busy} onClick={() => void run(() => queue.dismiss(record))} />
         </ChatComposerQueueItemActions>
       </ChatComposerQueueItem>)}
     </ChatComposerQueueList>

src/web-ui/src/locales/en-US/flow-chat.json

@@ -2881,7 +2881,8 @@
     "loading": "Opening assistant…"
   },
   "hostQueue": {
-    "title": "Host message queue",
+    "title": "Queued messages",
+    "about": "About queued messages",
     "memoryNotice": "Accepted messages run while this page is closed. Restarting the execution device clears pending messages.",
     "queued": "Queued",
     "blocked": "Waiting for recovery",

src/web-ui/src/locales/zh-CN/flow-chat.json

@@ -2881,7 +2881,8 @@
     "loading": "正在打开助手…"
   },
   "hostQueue": {
-    "title": "宿主消息队列",
+    "title": "待发送",
+    "about": "排队消息说明",
     "memoryNotice": "消息接受后，关闭此页面仍会执行。执行设备重启会清空待执行消息。",
     "queued": "排队中",
     "blocked": "等待恢复",

src/web-ui/src/locales/zh-TW/flow-chat.json

@@ -2881,7 +2881,8 @@
     "loading": "正在開啟助手…"
   },
   "hostQueue": {
-    "title": "主機訊息佇列",
+    "title": "待傳送",
+    "about": "排隊訊息說明",
     "memoryNotice": "訊息接受後，關閉此頁面仍會執行。執行裝置重新啟動會清空待執行訊息。",
     "queued": "排隊中",
     "blocked": "等待恢復",