Fix network access for iPhone testing

- Add 192.168.101.111 to ALLOWED_HOSTS and CORS_ALLOWED_ORIGINS
- Update frontend env to use network IP for API
- Fix page redirect to wait for hydration

frontend/src/app/page.tsx

@@ -7,15 +7,17 @@ import { Loader2 } from "lucide-react"
 
 export default function HomePage() {
   const router = useRouter()
-  const { token } = useAuth()
+  const { token, isHydrated } = useAuth()
 
   useEffect(() => {
+    if (!isHydrated) return
+    
     if (token) {
       router.push("/dashboard")
     } else {
       router.push("/login")
     }
-  }, [token, router])
+  }, [token, isHydrated, router])
 
   return (
     <div className="min-h-screen flex items-center justify-center">