Add 'apps/mobile/' from commit '5fa30f365f21531094cd4d2045042bb4f1370ac3'

git-subtree-dir: apps/mobile
git-subtree-mainline: 86f8987dff
git-subtree-split: 5fa30f365f

apps/mobile/lib/add-account.ts

@@ -0,0 +1,12 @@
+import { router } from "expo-router";
+
+import { prepareForAdditionalSignIn } from "@/lib/auth-storage";
+
+/** Switch to guest mode and open sign-in without wiping other saved accounts. */
+export async function startAdditionalAccountSignIn(
+  clearActiveAccount: () => Promise<void>,
+) {
+  await clearActiveAccount();
+  await prepareForAdditionalSignIn();
+  router.replace("/(auth)/sign-in");
+}