fix: keep queue overlay clear action static (#9031)

## Summary
Make the Queue Progress Overlay header clear action label static text
(`Clear queue`) and remove queued-count text from that header area.

## Changes
- Replace dynamic header text (`{count} queued`) with static `Clear
queue` text.
- Keep the existing icon clear button behavior/style in the header.
- Keep the clear action visible when queue is empty, but disabled.
- Add disabled visual treatment for the static text when queue is empty.
- Update `QueueOverlayHeader` tests to cover the new static label and
disabled behavior.

<img width="630" height="103" alt="image"
src="https://github.com/user-attachments/assets/0a5870fc-2ad6-4241-a12d-f8c4ef72a5fa"
/>


Design:
https://www.figma.com/design/LVilZgHGk5RwWOkVN6yCEK/Queue-Progress-Modal?node-id=4024-28153&m=dev

<img width="528" height="105" alt="image"
src="https://github.com/user-attachments/assets/3d03a4ac-a0f1-449d-afc7-b9a6cb1c8820"
/>
<img width="529" height="124" alt="image"
src="https://github.com/user-attachments/assets/7452cd17-e388-4b6a-b164-fce0b0d55ca1"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9031-fix-keep-queue-overlay-clear-action-static-30d6d73d365081f8b908fa54775ab4d4)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Johnpaul Chiwetelu <49923152+Myestery@users.noreply.github.com>
Co-authored-by: GitHub Action <action@github.com>

src/components/queue/QueueOverlayHeader.test.ts

@@ -54,6 +54,8 @@ const i18n = createI18n({
           running: 'running',
           queuedSuffix: 'queued',
           clearQueued: 'Clear queued',
+          clearQueueTooltip: 'Clear queue',
+          clearAllJobsTooltip: 'Cancel all running jobs',
           moreOptions: 'More options',
           clearHistory: 'Clear history',
           dockedJobHistory: 'Docked Job History'
@@ -101,23 +103,23 @@ describe('QueueOverlayHeader', () => {
     expect(wrapper.find('.inline-flex.items-center.gap-1').exists()).toBe(false)
   })
 
-  it('shows queued summary and emits clear queued', async () => {
+  it('shows clear queue text and emits clear queued', async () => {
     const wrapper = mountHeader({ queuedCount: 4 })
 
-    expect(wrapper.text()).toContain('4')
-    expect(wrapper.text()).toContain('queued')
+    expect(wrapper.text()).toContain('Clear queue')
+    expect(wrapper.text()).not.toContain('4 queued')
 
     const clearQueuedButton = wrapper.get('button[aria-label="Clear queued"]')
     await clearQueuedButton.trigger('click')
     expect(wrapper.emitted('clearQueued')).toHaveLength(1)
   })
 
-  it('hides clear queued button when queued count is zero', () => {
+  it('disables clear queued button when queued count is zero', () => {
     const wrapper = mountHeader({ queuedCount: 0 })
+    const clearQueuedButton = wrapper.get('button[aria-label="Clear queued"]')
 
-    expect(wrapper.find('button[aria-label="Clear queued"]').exists()).toBe(
-      false
-    )
+    expect(clearQueuedButton.attributes('disabled')).toBeDefined()
+    expect(wrapper.text()).toContain('Clear queue')
   })
 
   it('emits clear history from the menu', async () => {

src/components/queue/QueueOverlayHeader.vue

@@ -20,18 +20,15 @@
     <div
       class="inline-flex h-6 items-center gap-2 text-[12px] leading-none text-text-primary"
     >
-      <span class="opacity-90">
-        <span class="font-bold">{{ queuedCount }}</span>
-        <span class="ml-1">{{
-          t('sideToolbar.queueProgressOverlay.queuedSuffix')
-        }}</span>
-      </span>
+      <span :class="{ 'opacity-50': queuedCount === 0 }">{{
+        t('sideToolbar.queueProgressOverlay.clearQueueTooltip')
+      }}</span>
       <Button
-        v-if="queuedCount > 0"
         v-tooltip.top="clearAllJobsTooltip"
         variant="destructive"
         size="icon"
         :aria-label="t('sideToolbar.queueProgressOverlay.clearQueued')"
+        :disabled="queuedCount === 0"
         @click="$emit('clearQueued')"
       >
         <i class="icon-[lucide--list-x] size-4" />