feat(mobile): route user profile to pushed screen instead of popout

packages/web/src/components/layout/MobileShell.tsx

@@ -6,23 +6,17 @@ import { MobileScreenStack } from './MobileScreenStack';
 import { MobileBottomNav } from './MobileBottomNav';
 import { useSwipeGesture } from '../../hooks/useSwipeGesture';
 
-// Screen components — imported as they are created in subsequent tasks.
-// Inline placeholders are used until the real components exist.
-const PlaceholderScreen = ({ label }: { label: string }) => (
-  <div className="flex-1 flex items-center justify-center bg-surface-base text-txt-secondary">
-    {label}
-  </div>
-);
-
 import { MobileSpacesScreen } from './MobileSpacesScreen';
-import { FriendsPage } from '../chat/FriendsPage';
-// These will be replaced with real imports as each task is completed:
 import { MobileDmsScreen } from './MobileDmsScreen';
 import { MobileYouScreen } from './MobileYouScreen';
 import { MobileChatScreen } from './MobileChatScreen';
 import { MobileSettingsScreen } from './MobileSettingsScreen';
 import { MobileVoiceMiniBar } from './MobileVoiceMiniBar';
 import { MobileVoiceFullScreen } from './MobileVoiceFullScreen';
+import { MemberSidebar } from './MemberSidebar';
+import { FriendsPage } from '../chat/FriendsPage';
+import { ExplorePage } from '../chat/ExplorePage';
+import { UserProfileModal } from '../modals/UserProfileModal';
 
 const screenMap: Record<string, (params?: Record<string, string>) => React.ReactNode> = {
   'channel-chat': (params) => <MobileChatScreen params={params} />,
@@ -33,10 +27,17 @@ const screenMap: Record<string, (params?: Record<string, string>) => React.React
   'settings-privacy': () => <MobileSettingsScreen initialPanel="privacy" />,
   'settings-connections': () => <MobileSettingsScreen initialPanel="connections" />,
   'settings-instance': () => <MobileSettingsScreen initialPanel="instance" />,
-  'members': () => <PlaceholderScreen label="Members" />,
+  'members': () => <MemberSidebar />,
   'voice-full': () => <MobileVoiceFullScreen />,
-  'explore': () => <PlaceholderScreen label="Explore" />,
+  'explore': () => <ExplorePage />,
-  'user-profile': () => <PlaceholderScreen label="Profile" />,
+  'user-profile': (params) => {
+    // Open the user profile modal with the userId from params
+    if (params?.userId) {
+      // Set modalData so UserProfileModal can read it
+      useUIStore.getState().openModal('userProfile', { userId: params.userId });
+    }
+    return <UserProfileModal />;
+  },
 };
 
 export function MobileShell() {

packages/web/src/stores/uiStore.ts

@@ -112,9 +112,17 @@ export const useUIStore = create<UIState>()(
       openImagePreview: (url) => set({ activeModal: 'imagePreview', imagePreviewUrl: url }),
       closeImagePreview: () => set({ activeModal: null, imagePreviewUrl: null }),
 
-      openUserProfile: (user, position) => set({
+      openUserProfile: (user, position) => {
-        userProfilePopout: { user, position }
+        if (get().isMobile) {
-      }),
+          // On mobile, push a full-screen user profile instead of a positioned popout
+          set((state) => ({
+            mobileStack: [...state.mobileStack, { screen: 'user-profile', params: { userId: user.id } }],
+          }));
+          history.pushState({ mobileScreen: 'user-profile' }, '');
+        } else {
+          set({ userProfilePopout: { user, position } });
+        }
+      },
       closeUserProfile: () => set({
         userProfilePopout: { user: null, position: null }
       }),