fix: simplify task center status selection and rendering

src/renderer/src/RightAssistantSidebar.resize.test.tsx

@@ -363,6 +363,7 @@ describe('RightAssistantSidebar resizing', () => {
     }
     const view = render(sidebarElement(props))
     fireEvent.click(screen.getByRole('button', { name: '项目任务 2' }))
+    fireEvent.click(screen.getByRole('button', { name: '全部' }))
     const stats = within(screen.getByRole('region', { name: '当前会话统计' }))
     expect(stats.getByText('01:01:01')).toBeVisible()
     expect(stats.getByText('24')).toBeVisible()
@@ -385,29 +386,22 @@ describe('RightAssistantSidebar resizing', () => {
     for (const task of tasks) expect(screen.queryByText(task.title)).not.toBeInTheDocument()
   })
 
-  it('keeps an applied filter visible when collapsed and clears it without opening the filter panel', () => {
+  it('shows the task status tabs when expanded and defaults to active tasks', () => {
     renderSidebar({ tasks: [{
       id: 'completed', projectId: currentProject.id, title: 'Completed task', instructions: '',
       origin: 'schedule', status: 'completed', createdAt: '2026-09-17T00:00:00Z'
     }] })
-    const toggle = screen.getByRole('button', { name: '筛选任务' })
-    expect(screen.getByText('Completed task')).toBeVisible()
-    fireEvent.click(toggle)
-    fireEvent.click(screen.getByRole('button', { name: '进行中' }))
-    fireEvent.click(toggle)
-    expect(toggle).toHaveAttribute('aria-expanded', 'false')
-    expect(toggle).toHaveAttribute('data-active', 'true')
-    expect(screen.queryByRole('group', { name: '筛选任务' })).not.toBeInTheDocument()
-    expect(screen.getByText('筛选：进行中 · 0 项')).toBeVisible()
-    expect(screen.getByText('当前筛选条件下没有任务。')).toBeVisible()
-    fireEvent.click(screen.getByRole('button', { name: '清除筛选' }))
-    expect(toggle).toHaveAttribute('data-active', 'false')
+    expect(screen.queryByText('Completed task')).not.toBeInTheDocument()
+    expect(screen.queryByRole('button', { name: '筛选任务' })).not.toBeInTheDocument()
+    const filters = within(screen.getByRole('group', { name: '筛选任务' }))
+    expect(filters.getByRole('button', { name: '进行中' })).toHaveAttribute('aria-pressed', 'true')
+    expect(screen.queryByText('Completed task')).not.toBeInTheDocument()
+    fireEvent.click(filters.getByRole('button', { name: '已结束' }))
     expect(screen.getByText('Completed task')).toBeVisible()
   })
 
   it('scrolls the focused task filter into view when keyboard navigation reaches either end', () => {
     renderSidebar()
-    fireEvent.click(screen.getByRole('button', { name: '筛选任务' }))
     const filters = within(screen.getByRole('group', { name: '筛选任务' }))
     const first = filters.getByRole('button', { name: '全部' })
     const last = filters.getByRole('button', { name: '已结束' })
@@ -658,7 +652,7 @@ describe('RightAssistantSidebar resizing', () => {
     expect(list).toBeVisible()
     fireEvent.click(toggle)
     expect(list).not.toBeVisible()
-    fireEvent.click(screen.getByRole('button', { name: '筛选任务' }))
+    fireEvent.click(toggle)
     expect(toggle).toHaveAttribute('aria-expanded', 'true')
     expect(list).toBeVisible()
   })
@@ -676,7 +670,7 @@ describe('RightAssistantSidebar resizing', () => {
     expect(within(stats).getByText(`项目：${currentProject.name}`)).toBeVisible()
     expect(screen.getByRole('button', { name: '项目任务 4' })).toHaveAttribute('aria-expanded', 'false')
     expect(screen.getByText('2 运行中')).toBeVisible()
-    fireEvent.click(screen.getByRole('button', { name: '筛选任务' }))
+    fireEvent.click(screen.getByRole('button', { name: '项目任务 4' }))
     fireEvent.click(within(screen.getByRole('group', { name: '筛选任务' })).getByRole('button', { name: '已结束' }))
     expect(screen.getByText('2 运行中')).toBeVisible()
     view.rerender(sidebarElement({ tab: 'tasks', tasks: [] }))
@@ -701,10 +695,7 @@ describe('RightAssistantSidebar resizing', () => {
     )
     fireEvent.click(newTaskButton)
     expect(onCreateCustomTask).toHaveBeenCalledOnce()
-    expect(
-      screen.queryByRole('group', { name: '筛选任务' })
-    ).not.toBeInTheDocument()
-    expect(screen.getByRole('button', { name: '筛选任务' })).toHaveAttribute('aria-expanded', 'false')
+    expect(screen.getByRole('group', { name: '筛选任务' })).toBeVisible()
     expect(screen.queryByLabelText('定时任务标题')).not.toBeInTheDocument()
     expect(screen.queryByText('最近任务')).not.toBeInTheDocument()
   })
@@ -736,7 +727,6 @@ describe('RightAssistantSidebar resizing', () => {
       approvals: [approval], onOpenTask, onRespondApproval
     })
 
-    fireEvent.click(screen.getByRole('button', { name: '筛选任务' }))
     const filters = within(screen.getByRole('group', { name: '筛选任务' }))
     expect(filters.getAllByRole('button').map((button) => button.textContent))
       .toEqual(['全部', '进行中', '暂停', '已结束'])
@@ -782,7 +772,6 @@ describe('RightAssistantSidebar resizing', () => {
     }
     const onRespondApproval = vi.fn()
     renderSidebar({ tasks: [task], approvals: [approval], onRespondApproval })
-    fireEvent.click(screen.getByRole('button', { name: '筛选任务' }))
     const row = screen.getByText(task.title).closest('article')!
     expect(within(row).getByLabelText('等待审批: Confirm write')).toBeVisible()
     expect(screen.queryByRole('heading', { name: '等待审批' })).not.toBeInTheDocument()

src/renderer/src/RightAssistantSidebar.tsx

@@ -7,7 +7,6 @@ import {
   Copy,
   ExternalLink,
   FileText,
-  Filter,
   Maximize2,
   Minimize2,
   Plus,
@@ -48,7 +47,6 @@ import {
   isBrowserViewportOccluded
 } from './browser-viewport-occlusion'
 import {
-  findTaskSchedule,
   TaskScheduleActions
 } from './TaskScheduleActions'
 import type {
@@ -883,8 +881,7 @@ export function RightAssistantSidebar({
     useState('')
   const [taskFilter, setTaskFilter] = useState<
     'all' | 'active' | 'paused' | 'finished'
-  >('all')
-  const [taskFiltersExpanded, setTaskFiltersExpanded] = useState(false)
+  >('active')
   const [taskListExpanded, setTaskListExpanded] = useState(false)
   const [actionErrorState, setActionErrorState] = useState({
     scope: { instanceId: activeWorkbarInstanceId, open },
@@ -1027,6 +1024,14 @@ export function RightAssistantSidebar({
       }),
     [approvalsByTask, taskFilter, topLevelTasks]
   )
+  const schedulesByTaskKey = useMemo(() => {
+    const byKey = new Map<string, AssistantSchedule>()
+    for (const schedule of schedules) {
+      byKey.set(schedule.id, schedule)
+      byKey.set(schedule.taskId, schedule)
+    }
+    return byKey
+  }, [schedules])
 
   useEffect(() => {
     // Context switches preserve the selected instance and its pinned binding.
@@ -1981,21 +1986,8 @@ export function RightAssistantSidebar({
               >
                 <Plus aria-hidden="true" size={13} />
               </button>
-              <button
-                className="secondary-button task-center__filter-toggle"
-                aria-label={t('sidebar.tasks.filters.ariaLabel')}
-                title={t('sidebar.tasks.filters.ariaLabel')}
-                aria-expanded={taskListExpanded && taskFiltersExpanded}
-                aria-controls={`task-filters-${instance.id}`}
-                data-active={taskFilter !== 'all'}
-                onClick={() => {
-                  setTaskListExpanded(true)
-                  setTaskFiltersExpanded((expanded) => !expanded)
-                }}
-                type="button"
-              ><Filter aria-hidden="true" size={14} /></button>
             </div>
-            <div className="task-center__filters" id={`task-filters-${instance.id}`} hidden={!taskListExpanded || !taskFiltersExpanded}
+            <div className="task-center__filters" id={`task-filters-${instance.id}`} hidden={!taskListExpanded}
               onFocusCapture={(event) => event.target.scrollIntoView?.({ block: 'nearest', inline: 'nearest' })}>
               <SegmentedControl
                 ariaLabel={t('sidebar.tasks.filters.ariaLabel')}
@@ -2018,10 +2010,6 @@ export function RightAssistantSidebar({
                 value={taskFilter}
               />
             </div>
-            {taskListExpanded && taskFilter !== 'all' && <div className="task-center__filter-summary">
-              <span>{t('sidebar.tasks.filters.summary', { filter: t(`sidebar.tasks.filters.${taskFilter}`), count: filteredTasks.length })}</span>
-              <button type="button" onClick={() => setTaskFilter('all')}>{t('sidebar.tasks.filters.clear')}</button>
-            </div>}
             {unassociatedApprovals.length > 0 && <>
               <h3><ShieldAlert size={15} />{t('sidebar.tasks.approvalsTitle')}</h3>
               {unassociatedApprovals.map((approval) => (
@@ -2037,7 +2025,9 @@ export function RightAssistantSidebar({
               </p>
             ) : (
               filteredTasks.map((task) => {
-                const schedule = findTaskSchedule(task, schedules)
+                const schedule =
+                  schedulesByTaskKey.get(task.scheduleId ?? '') ??
+                  schedulesByTaskKey.get(task.id)
                 const conversationTitle = task.conversationId
                   ? conversationTitles.get(task.conversationId)
                   : undefined

src/renderer/src/task-center.css

@@ -81,8 +81,13 @@
 .task-center__list { display: flex; flex-direction: column; gap: var(--space-2); }
 .task-center__list[hidden] { display: none; }
 
-.task-center .task-center__create,
-.task-center .task-center__filter-toggle {
+/* Keep expanding a long history responsive by skipping off-screen cards. */
+.task-center__list > .task-center__item {
+  content-visibility: auto;
+  contain-intrinsic-size: 0 132px;
+}
+
+.task-center .task-center__create {
   display: inline-flex;
   align-items: center;
   justify-content: center;
@@ -92,13 +97,6 @@
   padding: 0;
 }
 
-.task-center .task-center__filter-toggle[data-active='true'],
-.task-center .task-center__filter-toggle[aria-expanded='true'] {
-  border-color: var(--accent-selected);
-  background: var(--accent-subtle);
-  color: var(--accent);
-}
-
 .task-center .task-center__filters { flex: 0 0 auto; }
 .task-center .task-center__filters .segmented-control { overflow-x: auto; }
 .task-center .task-center__filters .segmented-control__option {
@@ -107,26 +105,6 @@
 }
 .task-center .task-center__filters[hidden] { display: none; }
 
-.task-center__filter-summary {
-  display: flex;
-  flex-wrap: wrap;
-  align-items: center;
-  justify-content: space-between;
-  gap: var(--space-2);
-  color: var(--text-secondary);
-  font-size: var(--font-caption);
-}
-
-.task-center__filter-summary button {
-  border: 0;
-  background: transparent;
-  color: var(--accent);
-  padding: var(--space-2);
-  cursor: pointer;
-  font: inherit;
-}
-
-.task-center__filter-summary button:hover { background: var(--accent-subtle); }
 .task-center button:focus-visible,
 .task-center summary:focus-visible {
   outline: 2px solid var(--accent);