From 071ea9bfc3bf486e8117e20afe3bc7155039956b Mon Sep 17 00:00:00 2001
From: jtricerolph <info@tricerolph.com>
Date: Mon, 13 Jul 2026 11:53:06 +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 9492ba3..dd3764b 100644
--- a/frontend/src/components/AuthGate.tsx
+++ b/frontend/src/components/AuthGate.tsx
@@ -2,6 +2,13 @@ import { createContext, useContext, useEffect, useState } from 'react'
 import type { ReactNode } 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)