fix: scope idle agent setting to dashboard (#12941)

src/renderer/src/components/settings/AgentDashboardExperimentalSetting.tsx

@@ -16,7 +16,6 @@ export function AgentDashboardExperimentalSetting({
 }: AgentDashboardExperimentalSettingProps): React.JSX.Element {
   const enabled = settings.experimentalAgentDashboardPopout === true
   const mode = settings.experimentalAgentDashboardMode ?? 'in-window'
-  const showIdle = settings.experimentalAgentDashboardShowIdle === true
 
   return (
     <SearchableSetting
@@ -99,22 +98,6 @@ export function AgentDashboardExperimentalSetting({
               ]}
             />
           </div>
-          <div className="flex items-start justify-between gap-4">
-            <div className="min-w-0 shrink space-y-0.5">
-              <Label>{translate('dashboardPopout.settings.showIdle', 'Show idle agents')}</Label>
-              <p className="text-xs text-muted-foreground">
-                {translate(
-                  'dashboardPopout.settings.showIdleCopy',
-                  'Include agents that have gone quiet for 30 minutes without reporting completion. Hidden by default.'
-                )}
-              </p>
-            </div>
-            <SettingsSwitch
-              checked={showIdle}
-              onChange={() => updateSettings({ experimentalAgentDashboardShowIdle: !showIdle })}
-              ariaLabel={translate('dashboardPopout.settings.showIdle', 'Show idle agents')}
-            />
-          </div>
         </div>
       ) : null}
     </SearchableSetting>

src/renderer/src/components/settings/ExperimentalPane.test.tsx

@@ -164,29 +164,15 @@ describe('ExperimentalPane', () => {
     root.unmount()
   })
 
-  it('exposes idle-agent visibility for pop-out dashboards', async () => {
-    const updateSettings = vi.fn()
-    const settings = {
-      ...getDefaultSettings('/tmp'),
-      experimentalAgentDashboardPopout: true
-    }
-    const { root, container } = await renderExperimentalPane({
-      settings,
-      updateSettings
-    })
-    const idleSwitch = container.querySelector<HTMLButtonElement>(
-      '#experimental-agent-dashboard button[role="switch"][aria-label="Show idle agents"]'
+  it('keeps idle-agent visibility out of global settings', () => {
+    const markup = renderToStaticMarkup(
+      <ExperimentalPane
+        settings={{ ...getDefaultSettings('/tmp'), experimentalAgentDashboardPopout: true }}
+        updateSettings={vi.fn()}
+      />
     )
-    if (!idleSwitch) {
-      throw new Error('Idle-agent visibility switch was not rendered')
-    }
 
-    await act(async () => {
-      idleSwitch.dispatchEvent(new MouseEvent('click', { bubbles: true }))
-    })
-
-    expect(updateSettings).toHaveBeenCalledWith({ experimentalAgentDashboardShowIdle: true })
-    root.unmount()
+    expect(markup).not.toContain('Show idle agents')
   })
 
   it('renders Cloud VM as an off-by-default experimental subsection', () => {