[feat] Migrate to Jobs API (PR 2 of 3)

This PR switches the frontend from legacy /history and /queue endpoints
to the unified /jobs API.

Key changes:
- Rewrite TaskItemImpl in queueStore.ts to wrap JobListItem
- Update api.ts getQueue()/getHistory() to use Jobs API
- Update all queue composables (useJobList, useJobMenu, useResultGallery)
- Update useJobErrorReporting to use execution_error.exception_message
- Update JobGroupsList.vue workflowId access
- Update reconciliation.ts to work with JobListItem
- Update all related tests

Breaking changes:
- getQueue() now returns JobListItem[] instead of legacy tuple format
- getHistory() now returns JobListItem[] instead of HistoryTaskItem[]
- TaskItemImpl.outputs now lazily loads via loadFullOutputs()

Part of Jobs API migration. Depends on PR 1 (jobs-api-pr1-infrastructure).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/queue/QueueProgressOverlay.vue

@@ -208,7 +208,11 @@ const {
   galleryActiveIndex,
   galleryItems,
   onViewItem: openResultGallery
-} = useResultGallery(() => filteredTasks.value)
+} = useResultGallery(
+  () => filteredTasks.value,
+  // Lazy load full outputs for history items
+  (url) => api.fetchApi(url)
+)
 
 const setExpanded = (expanded: boolean) => {
   isExpanded.value = expanded
@@ -252,7 +256,7 @@ const focusAssetInSidebar = async (item: JobListItem) => {
 
 const inspectJobAsset = wrapWithErrorHandlingAsync(
   async (item: JobListItem) => {
-    openResultGallery(item)
+    await openResultGallery(item)
     await focusAssetInSidebar(item)
   }
 )