feat(account): 增加账号中心页面与入口

test/account/account_logic_test.dart

@@ -70,28 +70,28 @@ void main() {
     expect(copied, contains('n***@example.com'));
   });
 
-  test('should_clear_session_and_keep_schedule_when_deactivation_succeeds', () async {
-    final repository = FakeAccountRepository();
-    var cleared = false;
-    final logic = AccountDeactivateLogic(
-      repository,
-      clearSession: () async => cleared = true,
-    );
+  test(
+    'should_clear_session_and_keep_schedule_when_deactivation_succeeds',
+    () async {
+      final repository = FakeAccountRepository();
+      var cleared = false;
+      final logic = AccountDeactivateLogic(
+        repository,
+        clearSession: () async => cleared = true,
+      );
 
-    final ok = await logic.request('不再使用');
+      final ok = await logic.request('不再使用');
 
-    expect(ok, isTrue);
-    expect(repository.lastDeactivateReason, '不再使用');
-    expect(logic.scheduledAt, DateTime(2026, 11, 3, 9, 30));
-    expect(cleared, isTrue);
-  });
+      expect(ok, isTrue);
+      expect(repository.lastDeactivateReason, '不再使用');
+      expect(logic.scheduledAt, DateTime(2026, 11, 3, 9, 30));
+      expect(cleared, isTrue);
+    },
+  );
 
   test('should_show_backend_message_when_cancel_deactivation_fails', () async {
     final repository = FakeAccountRepository()..failCancel = true;
-    final logic = AccountDeactivateLogic(
-      repository,
-      clearSession: () async {},
-    );
+    final logic = AccountDeactivateLogic(repository, clearSession: () async {});
 
     final ok = await logic.cancel();