fix(mobile): splash/icon sizing, worktree sleep, host removal persistence

- Add worktree.sleep RPC method with full notifier chain (runtime → IPC → renderer)
- Optimistic UI update for sleeping worktrees in mobile client
- Fix splash screen: configure expo-splash-screen plugin, hide splash only after navigator layout
- Regenerate app icon and splash assets at correct density sizes
- Fix host removal not persisting by disabling Android auto-backup (allowBackup=false)
- Guard against invalid host credentials (base64 crash) and prevent navigating into auth-failed hosts
- Extract ActionSheetContent for inline drawer content switching
- Rewrite BottomDrawer as always-mounted Animated.View overlay (replaces Modal)
- Add ConfirmModal component with inline confirm/cancel buttons

Co-authored-by: Orca <help@stably.ai>

src/main/runtime/fit-override-integration.test.ts

@@ -95,6 +95,7 @@ describe('fit override integration', () => {
       renameTerminal: vi.fn(),
       focusTerminal: vi.fn(),
       closeTerminal: vi.fn(),
+      sleepWorktree: vi.fn(),
       terminalFitOverrideChanged: (ptyId, mode, cols, rows) => {
         notifications.push({ ptyId, mode, cols, rows })
       }
@@ -198,6 +199,7 @@ describe('fit override integration', () => {
       renameTerminal: vi.fn(),
       focusTerminal: vi.fn(),
       closeTerminal: vi.fn(),
+      sleepWorktree: vi.fn(),
       terminalFitOverrideChanged: vi.fn()
     })
 
@@ -258,6 +260,7 @@ describe('fit override integration', () => {
       renameTerminal: vi.fn(),
       focusTerminal: vi.fn(),
       closeTerminal: vi.fn(),
+      sleepWorktree: vi.fn(),
       terminalFitOverrideChanged: vi.fn()
     })
 

src/main/runtime/orca-runtime.test.ts

@@ -1249,6 +1249,7 @@ describe('OrcaRuntimeService', () => {
       renameTerminal: vi.fn(),
       focusTerminal: vi.fn(),
       closeTerminal: vi.fn(),
+      sleepWorktree: vi.fn(),
       terminalFitOverrideChanged: vi.fn()
     })
     runtime.attachWindow(TEST_WINDOW_ID)
@@ -1274,6 +1275,7 @@ describe('OrcaRuntimeService', () => {
       renameTerminal: vi.fn(),
       focusTerminal: vi.fn(),
       closeTerminal: vi.fn(),
+      sleepWorktree: vi.fn(),
       terminalFitOverrideChanged: vi.fn()
     })
     runtime.attachWindow(1)
@@ -1442,6 +1444,7 @@ describe('OrcaRuntimeService', () => {
       renameTerminal: vi.fn(),
       focusTerminal: vi.fn(),
       closeTerminal: vi.fn(),
+      sleepWorktree: vi.fn(),
       terminalFitOverrideChanged: vi.fn()
     })
 
@@ -1575,6 +1578,7 @@ describe('OrcaRuntimeService', () => {
         renameTerminal: vi.fn(),
         focusTerminal: vi.fn(),
         closeTerminal: vi.fn(),
+        sleepWorktree: vi.fn(),
         terminalFitOverrideChanged: (ptyId, mode, cols, rows) => {
           notifications.push({ ptyId, mode, cols, rows })
         }

src/main/runtime/orca-runtime.ts

@@ -199,6 +199,7 @@ type RuntimeNotifier = {
   renameTerminal(tabId: string, title: string | null): void
   focusTerminal(tabId: string, worktreeId: string): void
   closeTerminal(tabId: string, paneRuntimeId?: number): void
+  sleepWorktree(worktreeId: string): void
   terminalFitOverrideChanged(
     ptyId: string,
     mode: 'mobile-fit' | 'desktop-fit',
@@ -1568,6 +1569,15 @@ export class OrcaRuntimeService {
     return await this.resolveWorktreeSelector(worktreeSelector)
   }
 
+  async sleepManagedWorktree(worktreeSelector: string): Promise<{ worktreeId: string }> {
+    const worktree = await this.resolveWorktreeSelector(worktreeSelector)
+    // Why: sleep is renderer-initiated on desktop (it tears down tab state
+    // before killing PTYs). The notifier tells the renderer to run its own
+    // sleep flow so all cleanup happens in the correct order.
+    this.notifier?.sleepWorktree(worktree.id)
+    return { worktreeId: worktree.id }
+  }
+
   async activateManagedWorktree(worktreeSelector: string): Promise<{
     repoId: string
     worktreeId: string

src/main/runtime/rpc/methods/worktree.ts

@@ -71,6 +71,11 @@ export const WORKTREE_METHODS: RpcMethod[] = [
       worktree: await runtime.showManagedWorktree(params.worktree)
     })
   }),
+  defineMethod({
+    name: 'worktree.sleep',
+    params: WorktreeSelector,
+    handler: async (params, { runtime }) => runtime.sleepManagedWorktree(params.worktree)
+  }),
   defineMethod({
     name: 'worktree.activate',
     params: WorktreeSelector,

src/main/window/attach-main-window-services.ts

@@ -234,6 +234,7 @@ function registerRuntimeWindowLifecycle(
     renameTerminal: (tabId, title) => send('ui:renameTerminal', { tabId, title }),
     focusTerminal: (tabId, worktreeId) => send('ui:focusTerminal', { tabId, worktreeId }),
     closeTerminal: (tabId, paneRuntimeId) => send('ui:closeTerminal', { tabId, paneRuntimeId }),
+    sleepWorktree: (worktreeId) => send('ui:sleepWorktree', { worktreeId }),
     terminalFitOverrideChanged: (ptyId, mode, cols, rows) =>
       send('runtime:terminalFitOverrideChanged', { ptyId, mode, cols, rows })
   })

src/preload/api-types.ts

@@ -828,6 +828,7 @@ export type PreloadApi = {
     onCloseTerminal: (
       callback: (data: { tabId: string; paneRuntimeId?: number }) => void
     ) => () => void
+    onSleepWorktree: (callback: (data: { worktreeId: string }) => void) => () => void
     onTerminalZoom: (callback: (direction: 'in' | 'out' | 'reset') => void) => () => void
     readClipboardText: () => Promise<string>
     saveClipboardImageAsTempFile: () => Promise<string | null>

src/preload/index.ts

@@ -1505,6 +1505,12 @@ const api = {
       ipcRenderer.on('ui:closeTerminal', listener)
       return () => ipcRenderer.removeListener('ui:closeTerminal', listener)
     },
+    onSleepWorktree: (callback: (data: { worktreeId: string }) => void): (() => void) => {
+      const listener = (_event: Electron.IpcRendererEvent, data: { worktreeId: string }) =>
+        callback(data)
+      ipcRenderer.on('ui:sleepWorktree', listener)
+      return () => ipcRenderer.removeListener('ui:sleepWorktree', listener)
+    },
     onTerminalZoom: (callback: (direction: 'in' | 'out' | 'reset') => void): (() => void) => {
       const listener = (_event: Electron.IpcRendererEvent, direction: 'in' | 'out' | 'reset') =>
         callback(direction)

src/renderer/src/hooks/useIpcEvents.test.ts

@@ -163,6 +163,7 @@ describe('useIpcEvents updater integration', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -357,6 +358,7 @@ describe('useIpcEvents updater integration', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -549,6 +551,7 @@ describe('useIpcEvents updater integration', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -744,6 +747,7 @@ describe('useIpcEvents browser tab close routing', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -933,6 +937,7 @@ describe('useIpcEvents browser tab close routing', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -1117,6 +1122,7 @@ describe('useIpcEvents browser tab close routing', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -1319,6 +1325,7 @@ describe('useIpcEvents shortcut hint clearing', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},
@@ -1519,6 +1526,7 @@ describe('useIpcEvents CLI-created worktree activation', () => {
           onRenameTerminal: () => () => {},
           onFocusTerminal: () => () => {},
           onCloseTerminal: () => () => {},
+          onSleepWorktree: () => () => {},
           onNewBrowserTab: () => () => {},
           onRequestTabCreate: () => () => {},
           replyTabCreate: () => {},

src/renderer/src/hooks/useIpcEvents.ts

@@ -3,6 +3,7 @@ import { useEffect } from 'react'
 import { useAppStore } from '../store'
 import { applyUIZoom } from '@/lib/ui-zoom'
 import { activateAndRevealWorktree } from '@/lib/worktree-activation'
+import { runSleepWorktree } from '@/components/sidebar/sleep-worktree-flow'
 import { SPLIT_TERMINAL_PANE_EVENT, CLOSE_TERMINAL_PANE_EVENT } from '@/constants/terminal'
 import type { SplitTerminalPaneDetail, CloseTerminalPaneDetail } from '@/constants/terminal'
 import { getVisibleWorktreeIds } from '@/components/sidebar/visible-worktrees'
@@ -283,6 +284,12 @@ export function useIpcEvents(): void {
       })
     )
 
+    unsubs.push(
+      window.api.ui.onSleepWorktree(({ worktreeId }) => {
+        void runSleepWorktree(worktreeId)
+      })
+    )
+
     // Hydrate initial update status then subscribe to changes
     window.api.updater.getStatus().then((status) => {
       useAppStore.getState().setUpdateStatus(status as UpdateStatus)