bug fixes

frontend/src/pages/Profile.tsx

@@ -41,6 +41,8 @@ function Profile() {
     });
   };
 
+  const dashboardGroups = (user.groups ?? []).filter((g) => g.startsWith('dashboard_'));
+
   return (
     <DashboardLayout>
       <Container maxWidth="lg">
@@ -93,7 +95,7 @@ function Profile() {
                 <Divider sx={{ my: 2 }} />
 
                 {/* Groups/Roles */}
-                {user.groups && user.groups.length > 0 && (
+                {dashboardGroups.length > 0 && (
                   <Box sx={{ mt: 2 }}>
                     <Typography
                       variant="subtitle2"
@@ -105,9 +107,11 @@ function Profile() {
                       Gruppen
                     </Typography>
                     <Box sx={{ display: 'flex', flexWrap: 'wrap', gap: 1, mt: 1 }}>
-                      {user.groups.map((group) => (
-                        <Chip key={group} label={group} size="small" color="primary" />
-                      ))}
+                      {dashboardGroups.map((group) => {
+                        const name = group.replace(/^dashboard_/, '');
+                        const label = name.charAt(0).toUpperCase() + name.slice(1);
+                        return <Chip key={group} label={label} size="small" color="primary" />;
+                      })}
                     </Box>
                   </Box>
                 )}