feat: add mobile shell and unified search

apps/mobile-rn/App.tsx

@@ -33,12 +33,10 @@ import ForgotPasswordScreen from './src/screens/ForgotPasswordScreen'
 import UpdatePasswordScreen from './src/screens/UpdatePasswordScreen'
 import AccountScreen from './src/screens/AccountScreen'
 import OnboardingScreen from './src/screens/OnboardingScreen'
-import HistoryScreen from './src/screens/HistoryScreen'
 import HistoryDetailScreen from './src/screens/HistoryDetailScreen'
 import DevicesScreen from './src/screens/DevicesScreen'
 import DictionaryScreen from './src/screens/DictionaryScreen'
 import CommandsScreen from './src/screens/CommandsScreen'
-import MeetingsScreen from './src/screens/MeetingsScreen'
 import MeetingDetailScreen from './src/screens/MeetingDetailScreen'
 import KnowledgeScreen from './src/screens/KnowledgeScreen'
 import ActionsScreen from './src/screens/ActionsScreen'
@@ -51,6 +49,9 @@ import TemplatesScreen from './src/screens/TemplatesScreen'
 import MemosScreen from './src/screens/MemosScreen'
 import AdminScreen from './src/screens/AdminScreen'
 import AdminUserDetailScreen from './src/screens/AdminUserDetailScreen'
+import TalkScreen from './src/screens/TalkScreen'
+import SettingsScreen from './src/screens/SettingsScreen'
+import UnifiedSearchScreen from './src/screens/UnifiedSearchScreen'
 import { EntitlementProvider } from './src/lib/entitlement-context'
 import { fetchEntitlementSnapshot, useEntitlement } from './src/lib/entitlement-context'
 import { BillingProvider } from './src/lib/billing-context'
@@ -81,13 +82,11 @@ export type RootStackParamList = {
   Onboarding: { replay?: boolean } | undefined
   Main: NavigatorScreenParams<MainTabParamList> | undefined
   Account: undefined
-  History: undefined
   HistoryDetail: { historyId: string }
   ProPaywall: undefined
   Devices: undefined
   Dictionary: undefined
   Commands: undefined
-  Meetings: undefined
   MeetingDetail: { meetingId: string }
   Knowledge: undefined
   Actions: undefined
@@ -100,6 +99,9 @@ export type RootStackParamList = {
   Memos: undefined
   Admin: undefined
   AdminUserDetail: { userId: string }
+  Talk: undefined
+  Settings: undefined
+  UnifiedSearch: { initialQuery?: string } | undefined
 }
 
 type AuthEntryRoute = 'Login' | 'SignUp'
@@ -389,12 +391,10 @@ function RootNavigator(): React.ReactElement {
           <>
             <Stack.Screen name="Main" component={TabNavigator} />
             <Stack.Screen name="Account" component={AccountScreen} />
-            <Stack.Screen name="History" component={HistoryScreen} />
             <Stack.Screen name="HistoryDetail" component={HistoryDetailScreen} />
             <Stack.Screen name="Devices" component={DevicesScreen} />
             <Stack.Screen name="Dictionary" component={DictionaryScreen} />
             <Stack.Screen name="Commands" component={CommandsScreen} />
-            <Stack.Screen name="Meetings" component={MeetingsScreen} />
             <Stack.Screen name="MeetingDetail" component={MeetingDetailScreen} />
             <Stack.Screen name="Knowledge" component={KnowledgeScreen} />
             <Stack.Screen name="Actions" component={ActionsScreen} />
@@ -411,6 +411,9 @@ function RootNavigator(): React.ReactElement {
             <Stack.Screen name="Memos" component={MemosScreen} />
             <Stack.Screen name="Admin" component={AdminScreen} />
             <Stack.Screen name="AdminUserDetail" component={AdminUserDetailScreen} />
+            <Stack.Screen name="Talk" component={TalkScreen} />
+            <Stack.Screen name="Settings" component={SettingsScreen} />
+            <Stack.Screen name="UnifiedSearch" component={UnifiedSearchScreen} />
             <Stack.Screen name="UpdatePassword" component={UpdatePasswordScreen} />
             <Stack.Screen
               name="Onboarding"