fix: open previewable assets from list preview click/double-click (#9077)

## Summary
- emit `preview-click` from `AssetsListItem` when clicking the preview
tile
- wire assets sidebar rows and queue job-history rows so preview-tile
click and row double-click open the viewer/gallery
- gate job-history preview opening by `taskRef.previewOutput` (not
`iconImageUrl`) and use preview output URL/type so video previews are
supported
- add/extend tests for preview click and double-click behavior in assets
list and job history

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9077-fix-open-previewable-assets-from-list-preview-click-double-click-30f6d73d3650810a873cfa2dc085bf97)
by [Unito](https://www.unito.io)

src/components/sidebar/tabs/AssetsSidebarListView.test.ts

@@ -106,4 +106,42 @@ describe('AssetsSidebarListView', () => {
     expect(assetListItem?.props('previewUrl')).toBe('')
     expect(assetListItem?.props('isVideoPreview')).toBe(false)
   })
+
+  it('emits preview-asset when item preview is clicked', async () => {
+    const imageAsset = {
+      ...buildAsset('image-asset', 'image.png'),
+      preview_url: '/api/view/image.png',
+      user_metadata: {}
+    } satisfies AssetItem
+
+    const wrapper = mountListView([buildOutputItem(imageAsset)])
+    const listItems = wrapper.findAllComponents({ name: 'AssetsListItem' })
+    const assetListItem = listItems.at(-1)
+
+    expect(assetListItem).toBeDefined()
+
+    assetListItem!.vm.$emit('preview-click')
+    await wrapper.vm.$nextTick()
+
+    expect(wrapper.emitted('preview-asset')).toEqual([[imageAsset]])
+  })
+
+  it('emits preview-asset when item is double-clicked', async () => {
+    const imageAsset = {
+      ...buildAsset('image-asset-dbl', 'image.png'),
+      preview_url: '/api/view/image.png',
+      user_metadata: {}
+    } satisfies AssetItem
+
+    const wrapper = mountListView([buildOutputItem(imageAsset)])
+    const listItems = wrapper.findAllComponents({ name: 'AssetsListItem' })
+    const assetListItem = listItems.at(-1)
+
+    expect(assetListItem).toBeDefined()
+
+    await assetListItem!.trigger('dblclick')
+    await wrapper.vm.$nextTick()
+
+    expect(wrapper.emitted('preview-asset')).toEqual([[imageAsset]])
+  })
 })