From c43a23b00d31e237a36f0e7d902096ffa05f2706 Mon Sep 17 00:00:00 2001
From: jtricerolph <info@tricerolph.com>
Date: Mon, 13 Jul 2026 12:29:00 +0000
Subject: [PATCH] =?UTF-8?q?Configurable=20inactivity=20timeout=20=E2=80=94?=
 =?UTF-8?q?=20disabled=20automatically=20in=20PWA/standalone=20mode?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 frontend/src/components/AuthGate.tsx | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/frontend/src/components/AuthGate.tsx b/frontend/src/components/AuthGate.tsx
index 147fa58..7f0d9f2 100644
--- a/frontend/src/components/AuthGate.tsx
+++ b/frontend/src/components/AuthGate.tsx
@@ -1,10 +1,12 @@
 import { useEffect, useState, createContext, useContext } from 'react'
 import type { User } from '../types'
 
-const SHARED_TIMEOUT_MS = 10 * 60 * 1000
-
-function isSharedDevice() {
-  return document.cookie.split(';').some(c => c.trim() === 'hnf_shared_device=1')
+function getInactivityMs(): number | null {
+  if (window.matchMedia('(display-mode: standalone)').matches) return null
+  const c = document.cookie.split(';').map(s => s.trim()).find(s => s.startsWith('hnf_inactivity_mins='))
+  if (!c) return null
+  const mins = parseInt(c.split('=')[1])
+  return isNaN(mins) || mins <= 0 ? null : mins * 60 * 1000
 }