fix: sort queue jobs by create time (#8225)

Sort queue overlay ordering by create_time instead of priority so queued
jobs keep their order when completions arrive.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8225-fix-sort-queue-jobs-by-create-time-2ef6d73d3650815a8a81ec9d0b23a4e6)
by [Unito](https://www.unito.io)

src/composables/queue/useJobList.test.ts

@@ -305,24 +305,40 @@ describe('useJobList', () => {
     expect(vi.getTimerCount()).toBe(0)
   })
 
-  it('sorts all tasks by priority descending', async () => {
+  it('sorts all tasks by create time', async () => {
     queueStoreMock.pendingTasks = [
-      createTask({ promptId: 'p', queueIndex: 1, mockState: 'pending' })
+      createTask({
+        promptId: 'p',
+        queueIndex: 1,
+        mockState: 'pending',
+        createTime: 3000
+      })
     ]
     queueStoreMock.runningTasks = [
-      createTask({ promptId: 'r', queueIndex: 5, mockState: 'running' })
+      createTask({
+        promptId: 'r',
+        queueIndex: 5,
+        mockState: 'running',
+        createTime: 2000
+      })
     ]
     queueStoreMock.historyTasks = [
-      createTask({ promptId: 'h', queueIndex: 3, mockState: 'completed' })
+      createTask({
+        promptId: 'h',
+        queueIndex: 3,
+        mockState: 'completed',
+        createTime: 1000,
+        executionEndTimestamp: 5000
+      })
     ]
 
     const { allTasksSorted } = initComposable()
     await flush()
 
     expect(allTasksSorted.value.map((task) => task.promptId)).toEqual([
+      'p',
       'r',
-      'h',
-      'p'
+      'h'
     ])
   })
 

src/composables/queue/useJobList.ts

@@ -197,13 +197,18 @@ export function useJobList() {
   const selectedWorkflowFilter = ref<'all' | 'current'>('all')
   const selectedSortMode = ref<JobSortMode>('mostRecent')
 
+  const mostRecentTimestamp = (task: TaskItemImpl) => task.createTime ?? 0
+
   const allTasksSorted = computed<TaskItemImpl[]>(() => {
     const all = [
       ...queueStore.pendingTasks,
       ...queueStore.runningTasks,
       ...queueStore.historyTasks
     ]
-    return all.sort((a, b) => b.queueIndex - a.queueIndex)
+    return all.sort((a, b) => {
+      const delta = mostRecentTimestamp(b) - mostRecentTimestamp(a)
+      return delta === 0 ? 0 : delta
+    })
   })
 
   const tasksWithJobState = computed<TaskWithState[]>(() =>