fix(mobile-next): 断网横幅加顶部 SafeArea，避免叠进状态栏

仅改 home_view.dart：CompanyOfflineBanner 外包 SafeArea(bottom: false)，横幅高度仍为 36。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

mobile-next/lib/pages/home/home_view.dart

@@ -88,7 +88,8 @@ class HomePage extends StatelessWidget {
       body: Obx(
         () => Column(
           children: [
-            if (logic.isOffline.value) const CompanyOfflineBanner(),
+            if (logic.isOffline.value)
+              const SafeArea(bottom: false, child: CompanyOfflineBanner()),
             Expanded(
               child: PersistentTabView(
                 tabs: _tabs(),