Stabilize mobile auth session handling

app/(app)/settings.tsx

@@ -21,6 +21,7 @@ import { useAuthClient, useSession } from "@/contexts/AuthContext";
 import { type ColorMode, useAppTheme } from "@/contexts/ThemeContext";
 import { startAdditionalAccountSignIn } from "@/lib/add-account";
 import { confirmRemoveAccount, finishAccountRemoval } from "@/lib/account-actions";
+import { performAuthReset } from "@/lib/auth-session";
 import { api } from "@/lib/trpc";
 
 const THEME_OPTIONS: { value: ColorMode; label: string }[] = [
@@ -89,16 +90,20 @@ export default function SettingsScreen() {
       async (result) => {
         await finishAccountRemoval({
           result,
+          authClient,
           clearActiveAccount,
-          signOut: () => authClient.signOut(),
+          activeAccountId,
         });
       },
     );
   }
 
   async function handleSignOut() {
-    await authClient.signOut();
-    await clearActiveAccount();
+    await performAuthReset({
+      authClient,
+      clearActiveAccount,
+      activeAccountId,
+    });
     router.replace("/(auth)/sign-in");
   }