feat(apps): update UI screens and shared components

- Update home screen with new composer and interactions
- Update settings screens with new profile flow
- Update calendar share dialog
- Update contacts screen
- Add new shared widgets: confirm_sheet, phone_prefix_selector
- Add new formatters: phone_display_formatter
- Update tests for modified components

apps/lib/features/settings/ui/screens/settings_screen.dart

@@ -6,6 +6,7 @@ import 'package:social_app/core/theme/design_tokens.dart';
 import 'package:social_app/shared/widgets/app_loading_indicator.dart';
 import 'package:social_app/shared/widgets/toast/toast.dart';
 import 'package:social_app/shared/widgets/toast/toast_type.dart';
+import 'package:social_app/shared/utils/phone_display_formatter.dart';
 import 'package:social_app/features/friends/data/friends_api.dart';
 import 'package:social_app/features/settings/data/settings_api.dart';
 import 'package:social_app/features/users/data/models/user_response.dart';
@@ -98,7 +99,9 @@ class _SettingsScreenState extends State<SettingsScreen> {
     }
 
     final username = _user?.username ?? '未设置';
-    final email = _user?.email ?? '未设置';
+    final phone = _user?.phone == null
+        ? '未设置'
+        : formatPhoneForDisplay(_user?.phone);
 
     return Container(
       width: double.infinity,
@@ -195,7 +198,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                 ),
                 const SizedBox(height: 6),
                 Text(
-                  email,
+                  phone,
                   style: TextStyle(
                     fontSize: 13,
                     fontWeight: FontWeight.w500,