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/persistence.ts

@@ -7,6 +7,7 @@ import { setDirectoryShowHidden } from '@/lib/directoryShowHidden';
 import { setFilesViewShowGitignored } from '@/lib/filesViewShowGitignored';
 import { loadAppearancePreferences, applyAppearancePreferences } from '@/lib/appearancePersistence';
 import { getRegisteredRuntimeAPIs } from '@/contexts/runtimeAPIRegistry';
+import { normalizeMobileKeyboardMode, setStoredMobileKeyboardMode } from '@/lib/mobileKeyboardMode';
 
 const persistToLocalStorage = (settings: DesktopSettings) => {
   if (typeof window === 'undefined') {
@@ -92,6 +93,9 @@ const persistToLocalStorage = (settings: DesktopSettings) => {
       localStorage.removeItem('openchamber.pwaName');
     }
   }
+  if (typeof settings.mobileKeyboardMode === 'string') {
+    setStoredMobileKeyboardMode(settings.mobileKeyboardMode);
+  }
 };
 
 type PersistApi = {
@@ -464,6 +468,12 @@ const applyDesktopUiPreferences = (settings: DesktopSettings) => {
   if (typeof settings.inputBarOffset === 'number' && Number.isFinite(settings.inputBarOffset) && settings.inputBarOffset !== store.inputBarOffset) {
     store.setInputBarOffset(settings.inputBarOffset);
   }
+  if (typeof settings.mobileKeyboardMode === 'string') {
+    const mode = normalizeMobileKeyboardMode(settings.mobileKeyboardMode, store.mobileKeyboardMode);
+    if (mode !== store.mobileKeyboardMode) {
+      store.setMobileKeyboardMode(mode);
+    }
+  }
 
   if (Array.isArray(settings.favoriteModels)) {
     const current = store.favoriteModels;
@@ -889,6 +899,12 @@ const sanitizeWebSettings = (payload: unknown): DesktopSettings | null => {
   if (typeof candidate.inputBarOffset === 'number' && Number.isFinite(candidate.inputBarOffset)) {
     result.inputBarOffset = candidate.inputBarOffset;
   }
+  if (typeof candidate.mobileKeyboardMode === 'string') {
+    const mode = normalizeMobileKeyboardMode(candidate.mobileKeyboardMode, undefined);
+    if (mode) {
+      result.mobileKeyboardMode = mode;
+    }
+  }
 
   const favoriteModels = sanitizeModelRefs(candidate.favoriteModels, 64);
   if (favoriteModels) {