fix(ui): add opt-in mobile keyboard resize mode and stabilize touch terminal input (#1107)

* fix(ui): add opt-in mobile keyboard resize mode

* fix(ui): stabilize touch terminal input and tab layout

* fix(ui): narrow touch terminal handling to mobile and tablet

* fix(ui): refine touch terminal input handling

* fix(ui): re-key terminal viewport on session id

* fix(ui): avoid touch-laptop terminal overlay regression

* fix(ui): hide ghostty system caret surfaces

* fix(settings): normalize mobile keyboard mode sanitization

* fix(ui): honor terminal quick keys toggle on mobile

* fix(ui): gate mobile keyboard resize mode on iOS

---------

Co-authored-by: vhqtvn <8930337+vhqtvn@users.noreply.github.com>
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/lib/desktop.ts

@@ -1,4 +1,5 @@
 import type { ProjectEntry } from '@/lib/api/types';
+import type { MobileKeyboardMode } from '@/lib/mobileKeyboardMode';
 
 export type AssistantNotificationPayload = {
   title?: string;
@@ -121,6 +122,7 @@ export type DesktopSettings = {
   gitModelId?: string;
   pwaAppName?: string;
   pwaOrientation?: 'system' | 'portrait' | 'landscape';
+  mobileKeyboardMode?: MobileKeyboardMode;
   inputSpellcheckEnabled?: boolean;
   showToolFileIcons?: boolean;
   showExpandedBashTools?: boolean;