fix(web): localize toast messages and keep full session counts (#573)

Normalize hub toast text in the web client for i18n coverage (including Ready for input notifications) and stop deduplicating session rows by agentSessionId so outline/group counts reflect user-visible sessions.

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

web/src/lib/locales/zh-CN.ts

@@ -276,6 +276,12 @@ export default {
   // Send blocked
   'send.blocked.title': '无法发送消息',
   'send.blocked.noConnection': '未连接到服务器',
+  'resume.failed.title': '恢复会话失败',
+  'toast.ready.title': '等待输入',
+  'toast.ready.body': '{agent} 正在 {session} 等待你的输入',
+  'toast.permission.title': '权限请求',
+  'toast.task.completed': '任务完成',
+  'toast.task.failed': '任务失败',
 
   // Install prompt
   'install.title': '安装 HAPI',