Add one-time token login flow and deep-link handling

App.js

@@ -34,6 +34,7 @@ import { Platform } from 'react-native';
 import { PostHogProvider } from 'posthog-react-native'
 import * as Updates from 'expo-updates';
 import { useNavigation } from '@react-navigation/native';
+import * as Linking from 'expo-linking';
 
 
 const Tab = createBottomTabNavigator();
@@ -60,6 +61,15 @@ Notifications.setNotificationHandler({
     },
 });
 
+const parseTokenLoginUrl = (url = "") => {
+    const parsed = Linking.parse(url);
+    const token = typeof parsed?.queryParams?.token === "string" ? parsed.queryParams.token.trim() : "";
+    if (!token) return null;
+    const hostOrPath = `${parsed?.hostname || ""}/${parsed?.path || ""}`.toLowerCase();
+    if (!hostOrPath.includes("token-login")) return null;
+    return token;
+};
+
 async function registerForPushNotificationsAsync() {
 
     if (Platform.OS === 'android') {
@@ -276,16 +286,51 @@ const MainNavigation = ({ route }) => {
 export default function App() {
     const appState = useSnapshot(GlobalState);
     const viewer = appState.me || {};
+    const navigationRef = useRef(null);
+    const pendingTokenRef = useRef(null);
     const hasUnviewedNotifications = Array.isArray(viewer?.notifications)
         ? viewer.notifications.some((n) => n && n.viewed !== true)
         : false;
 
+    useEffect(() => {
+        const routeTokenLogin = (url) => {
+            const token = parseTokenLoginUrl(url);
+            if (!token) return;
+            if (!navigationRef.current) {
+                pendingTokenRef.current = token;
+                return;
+            }
+            navigationRef.current.navigate("Login", { token });
+        };
+
+        Linking.getInitialURL().then((url) => {
+            if (!url) return;
+            routeTokenLogin(url);
+        });
+
+        const sub = Linking.addEventListener("url", ({ url }) => {
+            routeTokenLogin(url);
+        });
+
+        return () => {
+            sub.remove();
+        };
+    }, []);
+
     return (
         <PaperProvider settings={{
             icon: props => <MaterialIcons {...props} />,
         }} theme={theme}>
             <KeyboardAvoidingView behavior={Platform.OS === 'ios' ? 'padding' : 'height'} style={{ flex: 1 }}>
-                <NavigationContainer>
+                <NavigationContainer
+                    ref={navigationRef}
+                    onReady={() => {
+                        if (!pendingTokenRef.current) return;
+                        const token = pendingTokenRef.current;
+                        pendingTokenRef.current = null;
+                        navigationRef.current?.navigate("Login", { token });
+                    }}
+                >
                     <PostHogProvider apiKey="phc_2zh7SoBDi83vaa7Rz4YWTXWCjV0bOLfiqRyUo2mkf0b" autocapture>
                         <StatusBar style="dark" />
                         <Stack.Navigator screenOptions={{