From 13082f97b18154bd07199dd6da1eafe8107c3710 Mon Sep 17 00:00:00 2001
From: "XPS\\Micro" <Rainer Wieland>
Date: Sat, 31 Jan 2026 17:31:13 +0100
Subject: [PATCH] fix: handle undefined last_used in formatDate

- Update formatDate() to accept string | null | undefined
- Fixes TypeScript error for optional last_used field in AdminUser
- Returns '-' if date is not available (null or undefined)
---
 frontend/src/app/admin/page.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/frontend/src/app/admin/page.tsx b/frontend/src/app/admin/page.tsx
index 80b43ec..a4dad66 100644
--- a/frontend/src/app/admin/page.tsx
+++ b/frontend/src/app/admin/page.tsx
@@ -89,7 +89,7 @@ function getStateLabel(state: string) {
   }
 }
 
-function formatDate(dateString: string | null) {
+function formatDate(dateString: string | null | undefined) {
   if (!dateString) return "-";
   return new Date(dateString).toLocaleDateString("de-DE", {
     day: "2-digit",