refactor: move into monorepo

apps/expo/app/_layout.tsx

@@ -0,0 +1,56 @@
+import { Stack } from 'expo-router';
+import 'react-native-reanimated';
+
+import { authClient } from '@/lib/auth-client';
+import { ZeroProvider } from '@rocicorp/zero/react';
+import { useMemo } from 'react';
+import { authDataSchema } from '@money/shared/auth';
+import { Platform } from 'react-native';
+import type { ZeroOptions } from '@rocicorp/zero';
+import { schema, type Schema, createMutators, type Mutators, BASE_URL } from '@money/shared';
+import { expoSQLiteStoreProvider } from "@rocicorp/zero/react-native";
+
+export const unstable_settings = {
+  anchor: 'index',
+};
+
+const kvStore = Platform.OS === "web" ? undefined : expoSQLiteStoreProvider();
+
+export default function RootLayout() {
+  const { data: session, isPending } = authClient.useSession();
+
+  const authData = useMemo(() => {
+    const result = authDataSchema.safeParse(session);
+    return result.success ? result.data : null;
+  }, [session]);
+
+  const cookie = useMemo(() => {
+    return Platform.OS == 'web' ? undefined : authClient.getCookie();
+  }, [session, isPending]);
+
+  const zeroProps = useMemo(() => {
+    return {
+      storageKey: 'money',
+      kvStore,
+      server: process.env.NODE_ENV == 'production' ? 'https://zero.koon.us' : `${BASE_URL}:4848`,
+      userID: authData?.user.id ?? "anon",
+      schema,
+      mutators: createMutators(authData),
+      auth: cookie,
+    } as const satisfies ZeroOptions<Schema, Mutators>; 
+  }, [authData, cookie]);
+
+  return (
+    <ZeroProvider {...zeroProps}>
+      <Stack>
+        <Stack.Protected guard={!isPending && !!session}>
+          <Stack.Screen name="index" options={{ headerShown: false }} />
+          <Stack.Screen name="settings" options={{ headerShown: false }} />
+        </Stack.Protected>
+        <Stack.Protected guard={!isPending && !session}>
+          <Stack.Screen name="auth" />
+        </Stack.Protected>
+      </Stack>
+    </ZeroProvider>
+  );
+}