chore: 抢单端UI回退前备份当前完整工作区

Co-authored-by: Cursor <cursoragent@cursor.com>

utils/role-tab-bar.js

@@ -249,8 +249,9 @@ export function reconnectForRole(role) {
   const connected = status === 'connected' || status === 'reconnected';
 
   if (connected && currentUserId === targetUserId) {
-    if (app.loadConversations) app.loadConversations();
+    if (app.restoreTabBarBadge) app.restoreTabBarBadge();
     if (app.ensureConnection) app.ensureConnection();
+    if (app.loadConversations) app.loadConversations();
     return;
   }