From 2bc587900babaf993a71dadd32fef9c7f3c1ab5d Mon Sep 17 00:00:00 2001
From: jtricerolph <info@tricerolph.com>
Date: Mon, 13 Jul 2026 11:53:05 +0000
Subject: [PATCH] Add shared device inactivity timeout to AuthGate

---
 frontend/src/components/AuthGate.tsx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/frontend/src/components/AuthGate.tsx b/frontend/src/components/AuthGate.tsx
index b5483cb..b509d78 100644
--- a/frontend/src/components/AuthGate.tsx
+++ b/frontend/src/components/AuthGate.tsx
@@ -1,6 +1,13 @@
 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')
+}
+
+
 interface AuthCtx { user: User }
 const Ctx = createContext<AuthCtx | null>(null)