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/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)