fix(mobile-next): 把加载、失败、断网接到真实 SDK 与目录请求

会话列表、通讯录、好友申请、添加同事页覆盖 CompanyLoadingView/CompanyFailView；
主页断网横幅跟随 IMSdkStatus.connectionFailed。不伪造状态。

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

mobile-next/lib/pages/contacts/contacts_view.dart

@@ -3,6 +3,7 @@ import 'package:get/get.dart';
 import 'package:openim_common/openim_common.dart';
 
 import '../../company/brand/app_tokens.dart';
+import '../../company/ui/state_views.dart';
 import 'contacts_logic.dart';
 
 class ContactsPage extends StatelessWidget {
@@ -19,12 +20,19 @@ class ContactsPage extends StatelessWidget {
         actions: [
           IconButton(
             onPressed: logic.addContacts,
-            icon: const Icon(Icons.person_add_alt, size: AppIconSize.md, color: AppColors.textPrimary),
+            icon: const Icon(Icons.person_add_alt,
+                size: AppIconSize.md, color: AppColors.textPrimary),
           ),
         ],
       ),
-      body: Obx(
-        () => Column(
+      body: Obx(() {
+        if (logic.loading.value) {
+          return const CompanyLoadingView();
+        }
+        if (logic.loadFailed.value) {
+          return CompanyFailView(onRetry: logic.reload);
+        }
+        return Column(
           children: [
             _entry(
               icon: Icons.person_add_alt,
@@ -44,8 +52,8 @@ class ContactsPage extends StatelessWidget {
               onTap: logic.myFriend,
             ),
           ],
-        ),
-      ),
+        );
+      }),
     );
   }
 
@@ -71,10 +79,13 @@ class ContactsPage extends StatelessWidget {
                   borderRadius: BorderRadius.circular(AppRadius.control),
                 ),
                 alignment: Alignment.center,
-                child: Icon(icon, size: AppIconSize.sm, color: AppColors.primary),
+                child:
+                    Icon(icon, size: AppIconSize.sm, color: AppColors.primary),
               ),
               const SizedBox(width: AppGap.x3),
-              Text(label, style: const TextStyle(fontSize: AppFont.body, color: AppColors.textPrimary)),
+              Text(label,
+                  style: const TextStyle(
+                      fontSize: AppFont.body, color: AppColors.textPrimary)),
               const Spacer(),
               if (count > 0) UnreadCountView(count: count),
             ],