fix(web): make the armed stop press legible without hover

The armed state relied on a color swap through --dsw-alias-label-error, a
token the themes never define, so the confirm step was effectively invisible.
The first press now widens the button into a labeled danger pill (确认停止 /
Confirm stop) tinted with the real state-error token StateDot uses; the
stream-failure notice moves off the same phantom token. Component spec pins
the inline label.

packages/client/ui-activity/src/client/ActivityListAction.module.css

@@ -119,15 +119,26 @@
   color: var(--dsw-alias-label-secondary);
 }
 
+/* The armed press widens into a labeled danger pill so the confirm step is
+   legible without hover; the state-error token is the one StateDot uses. */
 .stopArmed,
 .stopArmed:hover,
 .stopArmed:focus-visible {
-  background: var(--dsw-alias-fill-l1);
-  color: var(--dsw-alias-label-error, var(--dsw-alias-label-secondary));
+  gap: 4px;
+  width: auto;
+  padding: 0 8px;
+  background: color-mix(in srgb, var(--dsw-alias-state-error-primary) 12%, transparent);
+  color: var(--dsw-alias-state-error-primary);
+}
+
+.stopLabel {
+  font-size: 11px;
+  line-height: 18px;
+  white-space: nowrap;
 }
 
 .stopFailed {
-  color: var(--dsw-alias-label-error, var(--dsw-alias-label-secondary));
+  color: var(--dsw-alias-state-error-primary);
 }
 
 .row {
@@ -268,5 +279,5 @@
 }
 
 .noticeError {
-  color: var(--dsw-alias-label-error, var(--dsw-alias-label-secondary));
+  color: var(--dsw-alias-state-error-primary);
 }

packages/client/ui-activity/src/client/ActivityListAction.tsx

@@ -329,6 +329,9 @@ function TaskItem({ row, view, expanded, now, onToggle, kill, t }: {
               onClick={kill.onPress}
             >
               <IconStopFill16 size={12} />
+              {/* The armed press must be legible without hover: the button
+                  widens into a labeled confirm pill instead of a tint only. */}
+              {kill.state === 'armed' ? <span className={css.stopLabel}>{t('kill.confirmAction')}</span> : null}
             </button>
           )
           : null}

packages/client/ui-activity/src/client/locales.ts

@@ -16,6 +16,7 @@ export const zh = {
   'row.collapseAria': '收起 {label} 的实时输出',
   'kill.stop': '停止任务 {label}',
   'kill.confirm': '再次点击确认停止',
+  'kill.confirmAction': '确认停止',
   'kill.failed': '停止失败',
   'status.running': '运行中',
   'status.stopping': '正在停止',
@@ -56,6 +57,7 @@ export const en: Record<ActivityKey, string> = {
   'row.collapseAria': 'Hide live output of {label}',
   'kill.stop': 'Stop task {label}',
   'kill.confirm': 'Click again to confirm',
+  'kill.confirmAction': 'Confirm stop',
   'kill.failed': 'Stop failed',
   'status.running': 'running',
   'status.stopping': 'stopping',

packages/client/ui-activity/tests/activity-list-action.client.spec.tsx

@@ -405,6 +405,8 @@ describe('ActivityListAction human kill', () => {
     expect(killJob).not.toHaveBeenCalled()
     expect(stop.getAttribute('data-kill-state')).toBe('armed')
     expect(screen.getByTitle(zh['kill.confirm'])).toBe(stop)
+    // The armed step is legible without hover: the button carries the label.
+    expect(stop.textContent).toBe(zh['kill.confirmAction'])
     await act(async () => { fireEvent.click(stop) })
     expect(killJob).toHaveBeenCalledWith(SESSION, 'bash-1')
     // An admitted kill stays pending: the unary response and the jobs frames