feat: improve operations diagnostics and channel management

src/apps/LoginPage.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { adminApi, clientApi, type CaptchaResponse } from '@/api/adminApi';
-import { consumeSessionRecovery, readSessionRecovery, writeSession, type Portal } from '@/api/session';
+import { consumeSessionRecovery, markUserActivity, readSessionRecovery, writeSession, type Portal } from '@/api/session';
 import { Button, Input, Modal } from '@/components/ui';
 
 type LoginPageProps = {
@@ -57,6 +57,10 @@ export function LoginPage({ portal }: LoginPageProps) {
         captchaText,
       });
       writeSession(session);
+      // A login can happen without a full page reload after the previous session
+      // expired. Reset the in-memory activity clock so the new session is not
+      // immediately locked using the previous session's stale idle duration.
+      markUserActivity();
       const target = consumeSessionRecovery(portal)?.returnUrl;
       navigate(target ?? (isAdmin ? '/admin' : '/client'), { replace: true });
     } catch (err) {