Manage the built-in daemon from one place in settings (#1938)

* feat(settings): consolidate daemon management into the host page

The app-level Daemon section and the localhost host page rendered the
same daemon card in two places. The host page is now the single home:
the Host sidebar group leads with Overview, and a desktop-only "Enable
built-in daemon" option in the host switcher recovers a removed
localhost connection. Old settings/daemon deep links redirect
(COMPAT-tagged).

* fix(settings): hide daemon recovery option when the server id probe fails

Review feedback: !query.isLoading treated an errored IPC probe as
resolved, so the recovery affordance could show without knowing the
local server id. Replace the resolved-boolean hook with a single
discriminated state hook (loading | error | resolved) — errors hide the
affordance and fall back to the settings root in the redirect. Also
collapses the two query subscriptions per caller into one.

* fix(settings): keep daemon recovery reachable when no hosts remain

Review feedback: removing localhost as the only host takes the settings
sidebar down its no-host branch, which never mounts the host picker —
so the "Enable built-in daemon" option was unreachable in the most
common recovery case. The sidebar now owns the single hook call, passes
it to the picker, and renders the same action as a sidebar row next to
"Add host" when no hosts exist.

* test(e2e): update settings host header to Overview

Test drift: the host section's sidebar/header label was intentionally
renamed to "Overview"; the spec still asserted the old "Host" title.
Also assert the retired app-level Daemon row stays absent.

packages/app/src/screens/settings-screen.tsx

@@ -72,7 +72,6 @@ import { SegmentedControl } from "@/components/ui/segmented-control";
 import { DropdownMenu, DropdownMenuContent, DropdownMenuItem } from "@/components/ui/dropdown-menu";
 import { DesktopPermissionsSection } from "@/desktop/components/desktop-permissions-section";
 import { IntegrationsSection } from "@/desktop/components/integrations-section";
-import { LocalDaemonSection } from "@/desktop/components/desktop-updates-section";
 import { isElectronRuntime } from "@/desktop/host";
 import { useDesktopAppUpdater } from "@/desktop/updates/use-desktop-app-updater";
 import { formatVersionWithPrefix } from "@/desktop/updates/desktop-updates";
@@ -100,6 +99,10 @@ import ProjectsScreen from "@/screens/projects-screen";
 import ProjectSettingsScreen from "@/screens/project-settings-screen";
 import { useIsCompactFormFactor } from "@/constants/layout";
 import { useLocalDaemonServerId } from "@/hooks/use-is-local-daemon";
+import {
+  type EnableBuiltInDaemonOption,
+  useEnableBuiltInDaemonOption,
+} from "@/desktop/hooks/use-enable-built-in-daemon-option";
 import { useWebScrollbarStyle } from "@/hooks/use-web-scrollbar-style";
 import {
   buildOpenProjectRoute,
@@ -131,7 +134,6 @@ interface SidebarSectionItem {
 
 const SIDEBAR_SECTION_ITEMS: SidebarSectionItem[] = [
   { id: "general", labelKey: "settings.sections.general", icon: Settings },
-  { id: "daemon", labelKey: "settings.sections.daemon", icon: Server, desktopOnly: true },
   { id: "appearance", labelKey: "settings.sections.appearance", icon: Palette },
   { id: "shortcuts", labelKey: "settings.sections.shortcuts", icon: Keyboard, desktopOnly: true },
   {
@@ -157,13 +159,13 @@ interface HostSectionItem {
 }
 
 const HOST_SECTION_ITEMS: HostSectionItem[] = [
+  { id: "host", labelKey: "settings.hostSections.host", icon: Server },
   { id: "connections", labelKey: "settings.hostSections.connections", icon: Network },
   { id: "agents", labelKey: "settings.hostSections.agents", icon: Bot },
   { id: "workspaces", labelKey: "settings.hostSections.workspaces", icon: FolderGit2 },
   { id: "providers", labelKey: "settings.hostSections.providers", icon: Boxes },
   { id: "usage", labelKey: "settings.hostSections.usage", icon: Gauge },
   { id: "terminals", labelKey: "settings.hostSections.terminals", icon: SquareTerminal },
-  { id: "host", labelKey: "settings.hostSections.host", icon: Server },
 ];
 
 function renderHostSettingsContent(
@@ -893,6 +895,7 @@ interface HostPickerProps {
   sortedHosts: HostProfile[];
   onSelectHost: (serverId: string) => void;
   onAddHost: () => void;
+  enableBuiltInDaemonOption: EnableBuiltInDaemonOption;
 }
 
 /**
@@ -902,7 +905,13 @@ interface HostPickerProps {
  * is using right now; an "Add host" row is always reachable from the list —
  * even with a single host.
  */
-function HostPicker({ activeServerId, sortedHosts, onSelectHost, onAddHost }: HostPickerProps) {
+function HostPicker({
+  activeServerId,
+  sortedHosts,
+  onSelectHost,
+  onAddHost,
+  enableBuiltInDaemonOption,
+}: HostPickerProps) {
   const { t } = useTranslation();
   const [isOpen, setIsOpen] = useState(false);
   const triggerRef = useRef<View | null>(null);
@@ -932,6 +941,8 @@ function HostPicker({ activeServerId, sortedHosts, onSelectHost, onAddHost }: Ho
       anchorRef={triggerRef}
       includeAddHost
       onAddHost={onAddHost}
+      includeEnableBuiltInDaemon={enableBuiltInDaemonOption.visible}
+      onEnableBuiltInDaemon={enableBuiltInDaemonOption.onPress}
       showActiveConnection
       searchable={false}
       title={t("settings.hostPicker.switchHost")}
@@ -990,6 +1001,7 @@ function SettingsSidebar({
   const localServerId = useLocalDaemonServerId();
   const sortedHosts = useSortedHosts(hosts, localServerId);
   const hasHosts = sortedHosts.length > 0;
+  const enableBuiltInDaemonOption = useEnableBuiltInDaemonOption();
   const isDesktopApp = isElectronRuntime();
   const items = SIDEBAR_SECTION_ITEMS.filter((item) => !item.desktopOnly || isDesktopApp);
   const insets = useSafeAreaInsets();
@@ -1036,6 +1048,7 @@ function SettingsSidebar({
             sortedHosts={sortedHosts}
             onSelectHost={onSelectHost}
             onAddHost={onAddHost}
+            enableBuiltInDaemonOption={enableBuiltInDaemonOption}
           />
           {HOST_SECTION_ITEMS.map((item) => (
             <SidebarHostSectionButton
@@ -1062,6 +1075,20 @@ function SettingsSidebar({
               {t("settings.addHost")}
             </Text>
           </Pressable>
+          {enableBuiltInDaemonOption.visible ? (
+            <Pressable
+              accessibilityRole="button"
+              accessibilityLabel={t("settings.enableBuiltInDaemon")}
+              onPress={enableBuiltInDaemonOption.onPress}
+              testID="settings-enable-built-in-daemon"
+              style={sidebarItemStyle}
+            >
+              <Server size={theme.iconSize.md} color={theme.colors.foregroundMuted} />
+              <Text style={sidebarStyles.label} numberOfLines={1}>
+                {t("settings.enableBuiltInDaemon")}
+              </Text>
+            </Pressable>
+          ) : null}
         </View>
       )}
     </>
@@ -1387,8 +1414,6 @@ export default function SettingsScreen({ view, openAddHostIntent = null }: Setti
               handleTerminalScrollbackLinesChange={handleTerminalScrollbackLinesChange}
             />
           );
-        case "daemon":
-          return <LocalDaemonSection />;
         case "appearance":
           return <AppearanceSection />;
         case "shortcuts":