fix(harmonyos): stabilize remote chat and wide preview UX

src/apps/mobile/harmonyos/entry/src/main/ets/i18n/EnUsMessages.ets

@@ -199,19 +199,6 @@ export const EN_US_MESSAGES: [string, string][] = [
   ['remote.actions', 'Remote settings'],
   ['remote.device', 'Connected device'],
   ['remote.newChat', 'Chat'],
-  ['remote.create.title', 'New task'],
-  ['remote.create.chat', 'Chat'],
-  ['remote.create.noDevice', 'Choose a desktop'],
-  ['remote.create.noOnlineDevice', 'No online desktop is available'],
-  ['remote.create.placeholder', 'Tell BitFun what to do'],
-  ['remote.create.deviceLoadFailed', 'Could not load devices. Try again later.'],
-  ['remote.create.workspaceLoadFailed', 'Could not load workspaces. Try again later.'],
-  ['remote.create.deviceMismatch', 'The selected device is not connected. Choose it again and retry.'],
-  ['remote.create.submitFailed', 'Could not create the session. Check the desktop connection and retry.'],
-  ['remote.create.harness.minimal', 'Minimal'],
-  ['remote.create.harness.balanced', 'Standard'],
-  ['remote.create.harness.ultimate', 'Ultimate'],
-  ['remote.create.harnessAccessibility', 'Harness: {0}'],
   ['remote.workspace', 'Workspace'],
   ['remote.assistant', 'Assistant'],
   ['remote.noAssistant', 'Default assistant'],
@@ -453,6 +440,7 @@ export const EN_US_MESSAGES: [string, string][] = [
   ['chat.toolOpAskUser', 'Ask for confirmation'],
   ['chat.toolTodoFallback', 'Task list'],
   ['chat.toolTaskFallback', 'Subtask'],
+  ['chat.subagentOutput', 'Subtask output'],
   ['chat.toolFailed', '{0} failed'],
   ['chat.toolRunning', 'Running'],
   ['chat.showMore', 'Show more'],
@@ -492,6 +480,8 @@ export const EN_US_MESSAGES: [string, string][] = [
   ['filePreview.offline', 'Offline. Showing loaded content only.'],
   ['filePreview.fitImage', 'Fit window'],
   ['filePreview.actualImageSize', 'Actual size'],
+  ['filePreview.expand', 'Expand preview'],
+  ['filePreview.restoreSize', 'Restore preview'],
   ['filePreview.imageDecodeFailed', 'The image could not be decoded. Retry or download the file.'],
   ['filePreview.loadFailed', 'Could not open the file'],
   ['filePreview.notFound', 'The file does not exist or was moved'],
@@ -605,21 +595,23 @@ export const EN_US_MESSAGES: [string, string][] = [
   ['errors.voiceInputUnavailable', 'Speech recognition is unavailable. Try again later.'],
   ['errors.voiceInputFailed', 'Speech recognition failed ({0}). Try again later.'],
 
-  ['watchProvision.title', 'Add this watch to your BitFun account?'],
+  ['watchProvision.title', 'Sign in to BitFun on this watch?'],
   ['watchProvision.deviceId', 'Device {0}'],
-  ['watchProvision.body', 'If you allow this, the watch can use your account to connect a desktop for 30 days. Confirm the device is in your hands.'],
+  ['watchProvision.body', 'If you allow this, the watch will sign in to your account and can connect to a desktop. Confirm the watch is in your hands.'],
   ['watchProvision.approve', 'Allow'],
   ['watchProvision.reject', 'Deny'],
   ['watchProvision.gotIt', 'Got it'],
   ['watchProvision.working', 'Setting up the watch account...'],
   ['watchProvision.passwordBody', 'Confirm your account password once more to create a separate sign-in for this watch. The password is used only for this verification.'],
   ['watchProvision.passwordPlaceholder', 'Account password'],
   ['watchProvision.passwordConfirm', 'Confirm'],
-  ['watchProvision.doneBody', '{0} was added to the account and can be used on the watch now.'],
+  ['watchProvision.doneBody', '{0} is signed in and ready to use BitFun.'],
   ['watchProvision.rejected', 'Denied on the phone.'],
   ['watchProvision.busy', 'The phone is handling another device request. Try again later.'],
-  ['watchProvision.errors.noDesktop', 'Scan and connect a desktop on the phone before authorizing a watch.'],
-  ['watchProvision.errors.desktopUnreachable', 'The desktop is offline or too old. Update it and retry.'],
+  ['watchProvision.errors.noDesktop', 'Sign in to BitFun on the phone, or connect a desktop signed in to the same account.'],
+  ['watchProvision.errors.accountUnavailable', 'The account could not be verified. Check the phone network and try again.'],
+  ['watchProvision.errors.desktopUnreachable', 'The desktop could not be reached. Make sure it is online and try again.'],
+  ['watchProvision.errors.desktopAuthorizationFailed', 'The desktop could not sign in the watch. Make sure it uses the same BitFun account.'],
   ['watchProvision.errors.passwordFailed', 'Account verification failed. Check the password or network and retry.'],
   ['watchProvision.errors.handoffFailed', 'Authorization finished, but the credential could not be sent to the watch. Retry on the watch.'],
 

src/apps/mobile/harmonyos/entry/src/main/ets/i18n/ZhCnMessages.ets

@@ -199,19 +199,6 @@ export const ZH_CN_MESSAGES: [string, string][] = [
   ['remote.actions', '远程设置'],
   ['remote.device', '连接的设备'],
   ['remote.newChat', '聊天'],
-  ['remote.create.title', '新建任务'],
-  ['remote.create.chat', '聊天'],
-  ['remote.create.noDevice', '选择桌面设备'],
-  ['remote.create.noOnlineDevice', '没有可用的在线桌面设备'],
-  ['remote.create.placeholder', '告诉 BitFun 要做什么'],
-  ['remote.create.deviceLoadFailed', '设备列表加载失败，请稍后重试。'],
-  ['remote.create.workspaceLoadFailed', '工作区加载失败，请稍后重试。'],
-  ['remote.create.deviceMismatch', '所选设备尚未连接，请重新选择设备后再试。'],
-  ['remote.create.submitFailed', '无法创建会话，请检查桌面连接后重试。'],
-  ['remote.create.harness.minimal', '极简'],
-  ['remote.create.harness.balanced', '标准'],
-  ['remote.create.harness.ultimate', '极致'],
-  ['remote.create.harnessAccessibility', 'Harness：{0}'],
   ['remote.workspace', '工作区'],
   ['remote.assistant', '助理'],
   ['remote.noAssistant', '默认助理'],
@@ -453,6 +440,7 @@ export const ZH_CN_MESSAGES: [string, string][] = [
   ['chat.toolOpAskUser', '请求确认'],
   ['chat.toolTodoFallback', '任务列表'],
   ['chat.toolTaskFallback', '子任务'],
+  ['chat.subagentOutput', '子任务输出'],
   ['chat.toolFailed', '{0}失败'],
   ['chat.toolRunning', '正在运行'],
   ['chat.showMore', '查看更多'],
@@ -492,6 +480,8 @@ export const ZH_CN_MESSAGES: [string, string][] = [
   ['filePreview.offline', '离线，仅显示已加载内容'],
   ['filePreview.fitImage', '适应窗口'],
   ['filePreview.actualImageSize', '原始大小'],
+  ['filePreview.expand', '放大预览'],
+  ['filePreview.restoreSize', '还原预览'],
   ['filePreview.imageDecodeFailed', '图片无法解码，请重试或下载文件。'],
   ['filePreview.loadFailed', '无法打开文件'],
   ['filePreview.notFound', '文件不存在或已被移动'],
@@ -605,21 +595,23 @@ export const ZH_CN_MESSAGES: [string, string][] = [
   ['errors.voiceInputUnavailable', '语音识别暂不可用，请稍后重试。'],
   ['errors.voiceInputFailed', '语音识别失败（{0}），请稍后重试。'],
 
-  ['watchProvision.title', '把这块手表加入你的 BitFun 账号？'],
+  ['watchProvision.title', '在这块手表上登录 BitFun？'],
   ['watchProvision.deviceId', '设备编号 {0}'],
-  ['watchProvision.body', '同意后，这块手表可以用你的账号连接桌面端，有效期 30 天。请确认这台设备就在你手里。'],
+  ['watchProvision.body', '同意后，手表会登录你的账号并可以连接桌面端。请确认这块手表就在你手里。'],
   ['watchProvision.approve', '允许'],
   ['watchProvision.reject', '拒绝'],
   ['watchProvision.gotIt', '知道了'],
   ['watchProvision.working', '正在为手表开通账号...'],
   ['watchProvision.passwordBody', '需要再确认一次账号密码，才能给这块手表创建独立的登录凭证。密码只会用于本次验证。'],
   ['watchProvision.passwordPlaceholder', '账号密码'],
   ['watchProvision.passwordConfirm', '确认'],
-  ['watchProvision.doneBody', '{0} 已加入账号，手表上可以直接使用了。'],
+  ['watchProvision.doneBody', '{0} 已登录，可以在手表上使用 BitFun 了。'],
   ['watchProvision.rejected', '已在手机上拒绝。'],
   ['watchProvision.busy', '手机正在处理另一台设备的请求，请稍后再试。'],
-  ['watchProvision.errors.noDesktop', '需要先在手机上扫码连接桌面端，才能给手表授权。'],
-  ['watchProvision.errors.desktopUnreachable', '桌面端未在线或版本过旧，请更新桌面端后重试。'],
+  ['watchProvision.errors.noDesktop', '请先在手机上登录 BitFun 账号，或连接已登录同一账号的桌面端。'],
+  ['watchProvision.errors.accountUnavailable', '暂时无法验证账号，请检查手机网络后重试。'],
+  ['watchProvision.errors.desktopUnreachable', '暂时无法连接桌面端，请确认桌面端在线后重试。'],
+  ['watchProvision.errors.desktopAuthorizationFailed', '桌面端没能完成手表登录，请确认桌面端已登录同一 BitFun 账号。'],
   ['watchProvision.errors.passwordFailed', '账号验证失败，请检查密码或网络后重试。'],
   ['watchProvision.errors.handoffFailed', '授权已完成，但没能把凭证发给手表，请在手表上重试一次。'],
 

src/apps/mobile/harmonyos/entry/src/main/ets/model/ChatTimelineModels.ets

@@ -71,12 +71,27 @@ export class ChatTimelineRowStore {
   private signaturesByKey: Map<string, string> = new Map<string, string>();
 
   reconcile(items: ChatTimelineItem[]): ObservableChatTimelineItem[] {
+    // A lazy container requires unique keys. Keep the final projection for a
+    // key as a defensive boundary even if an upstream adapter temporarily
+    // exposes both a persisted assistant stub and its active turn snapshot.
+    const orderedKeys: string[] = [];
+    const itemsByKey: Map<string, ChatTimelineItem> = new Map<string, ChatTimelineItem>();
+    items.forEach((item: ChatTimelineItem) => {
+      const key = ChatTimelineRevisionTracker.itemKey(item);
+      if (!itemsByKey.has(key)) {
+        orderedKeys.push(key);
+      }
+      itemsByKey.set(key, item);
+    });
     const nextRowsByKey: Map<string, ObservableChatTimelineItem> =
       new Map<string, ObservableChatTimelineItem>();
     const nextSignaturesByKey: Map<string, string> = new Map<string, string>();
     const rows: ObservableChatTimelineItem[] = [];
-    items.forEach((item: ChatTimelineItem) => {
-      const key = ChatTimelineRevisionTracker.itemKey(item);
+    orderedKeys.forEach((key: string) => {
+      const item = itemsByKey.get(key);
+      if (!item) {
+        return;
+      }
       const signature = ChatTimelineRevisionTracker.itemSignature(item);
       let row = this.rowsByKey.get(key);
       if (row) {

src/apps/mobile/harmonyos/entry/src/main/ets/pages/AppRoot.ets

@@ -41,7 +41,6 @@ struct AppRoot {
         navigationStack: this.runtime.navigationStack,
         remotePageState: this.runtime.remotePageState,
         deviceDirectoryState: this.runtime.deviceDirectoryState,
-        remoteCreateState: this.runtime.remoteCreateState,
         generalPageState: this.runtime.generalChatPageState,
         filePreviewState: this.runtime.filePreviewState,
         deviceId: this.runtime.remoteConnectionController.getDeviceId(),

src/apps/mobile/harmonyos/entry/src/main/ets/pages/actions/AppRootPresentationActions.ets

@@ -3,7 +3,6 @@ import { CloudAccountDevice } from '../../services/CloudAccountClient';
 import { DetectedUrlAction } from '../../services/ConnectScanDecisionPolicy';
 import { ConversationIntent } from './ConversationIntent';
 import { AppRoute } from '../navigation/AppRouteContract';
-import { RemoteHarnessProfile } from '../state/RemoteCreateSessionState';
 
 export interface AppRootPresentationActions {
   readonly onNavigationBack: (route: AppRoute) => boolean;
@@ -12,7 +11,6 @@ export interface AppRootPresentationActions {
   readonly onCompactLayoutEntered: () => void;
   readonly onLayoutModeChanged: (wideLayout: boolean) => void;
   readonly onRemoteHome: RemoteHomePresentationActions;
-  readonly onRemoteCreate: RemoteCreatePresentationActions;
   readonly onSidebar: SidebarPresentationActions;
   readonly onSettings: SettingsPresentationActions;
   readonly onConnect: ConnectPresentationActions;
@@ -27,19 +25,6 @@ export interface FilePreviewPresentationActions {
   readonly openLink: (reference: string, label: string) => void;
 }
 
-export interface RemoteCreatePresentationActions {
-  readonly back: () => void;
-  readonly toggleDevices: () => void;
-  readonly toggleWorkspaces: () => void;
-  readonly selectDevice: (device: CloudAccountDevice) => void;
-  readonly selectWorkspace: (path: string) => void;
-  readonly draftChanged: (value: string) => void;
-  readonly voiceInput: () => void;
-  readonly selectModel: (modelId: string) => void;
-  readonly selectHarness: (profile: RemoteHarnessProfile) => void;
-  readonly send: () => void;
-}
-
 export interface RemoteHomePresentationActions {
   readonly openSidebar: () => void;
   readonly connectWorkspace: () => void;
@@ -60,8 +45,6 @@ export interface RemoteHomePresentationActions {
   readonly clearPairing: () => void;
   readonly create: (agentType: string) => void;
   readonly createInPlace: (agentType: string) => void;
-  readonly createAssistant: () => void;
-  readonly openCreateInWorkspace: (path: string, deviceId?: string) => void;
   readonly createInWorkspace: (path: string, agentType: string, deviceId?: string) => void;
   readonly createInWorkspaceInPlace: (path: string, agentType: string, deviceId?: string) => void;
   readonly selectDirectoryDevice: (deviceId: string) => void;
@@ -136,17 +119,11 @@ export function emptyAppRootPresentationActions(): AppRootPresentationActions {
       refresh: () => {}, showWorkspaces: () => {}, showAssistants: () => {}, selectWorkspace: () => {},
       selectAssistant: () => {}, cancelWorkspace: () => {}, cancelAssistant: () => {}, queryChanged: () => {},
       search: () => {}, loadMore: () => {}, reconnect: () => {}, disconnect: () => {}, clearPairing: () => {},
-      create: () => {}, createInPlace: () => {}, createAssistant: () => {}, openCreateInWorkspace: () => {},
-      createInWorkspace: () => {},
+      create: () => {}, createInPlace: () => {}, createInWorkspace: () => {},
       createInWorkspaceInPlace: () => {}, selectDirectoryDevice: () => {}, addDirectoryWorkspace: () => {},
       retryDirectoryDevice: () => {}, loadWorkspaceSessions: async () => {},
       openSession: () => {}, openSessionInPlace: () => {}, deleteSession: () => {}
     },
-    onRemoteCreate: {
-      back: () => {}, toggleDevices: () => {}, toggleWorkspaces: () => {}, selectDevice: () => {},
-      selectWorkspace: () => {}, draftChanged: () => {}, voiceInput: () => {}, selectModel: () => {},
-      selectHarness: () => {}, send: () => {}
-    },
     onSidebar: {
       close: () => {}, newChat: () => {}, enterCode: () => {}, scanDesktop: () => {}, addDesktop: () => {},
       refreshDevices: () => {}, settings: () => {}, openAccount: () => {},

src/apps/mobile/harmonyos/entry/src/main/ets/pages/components/AdaptiveSheetOptions.ets

@@ -12,6 +12,7 @@ export class AdaptiveSheetOptions {
     if (placement.mode === SettingsPlacementMode.FoldOperate) {
       return {
         height: placement.height,
+        keyboardAvoidMode: SheetKeyboardAvoidMode.RESIZE_ONLY,
         backgroundColor: '#00000000',
         maskColor: '#44000000',
         showClose: false,
@@ -22,6 +23,7 @@ export class AdaptiveSheetOptions {
       return {
         height: placement.height,
         width: placement.width,
+        keyboardAvoidMode: SheetKeyboardAvoidMode.RESIZE_ONLY,
         preferType: SheetType.SIDE,
         backgroundColor: '#00000000',
         maskColor: '#44000000',
@@ -33,6 +35,7 @@ export class AdaptiveSheetOptions {
       return {
         height: placement.height,
         width: placement.width,
+        keyboardAvoidMode: SheetKeyboardAvoidMode.RESIZE_ONLY,
         preferType: SheetType.CENTER,
         backgroundColor: '#00000000',
         maskColor: '#44000000',
@@ -43,6 +46,7 @@ export class AdaptiveSheetOptions {
     if (placement.height > 0) {
       return {
         height: placement.height,
+        keyboardAvoidMode: SheetKeyboardAvoidMode.RESIZE_ONLY,
         backgroundColor: '#00000000',
         maskColor: '#44000000',
         showClose: false,
@@ -51,6 +55,7 @@ export class AdaptiveSheetOptions {
     }
     return {
       height: SheetSize.LARGE,
+      keyboardAvoidMode: SheetKeyboardAvoidMode.RESIZE_ONLY,
       backgroundColor: '#00000000',
       maskColor: '#44000000',
       showClose: false,

src/apps/mobile/harmonyos/entry/src/main/ets/pages/components/AppRootOverlaySurfaces.ets

@@ -83,7 +83,7 @@ export struct AppSidebarSurface {
       onOpenSession: this.actions.onSidebar.openSession,
       onCreateInWorkspace: (deviceId: string, path: string) => {
         this.actions.onSidebar.close();
-        this.actions.onRemoteHome.openCreateInWorkspace(path, deviceId);
+        this.actions.onRemoteHome.createInWorkspace(path, 'code', deviceId);
       },
       onOpenWorkspace: (deviceId: string, path: string) => {
         this.actions.onRemoteHome.selectWorkspace(path, deviceId);