user admin capability

lib/providers/auth_provider.dart

@@ -26,6 +26,13 @@ class AuthController extends ChangeNotifier {
 
   RecordModel? get user => _client?.authStore.record;
 
+  /// True when PocketBase `usersapp.is_admin` is set for this account.
+  bool get isAdmin {
+    final record = user;
+    if (record == null) return false;
+    return record.getBoolValue('is_admin');
+  }
+
   String? get email {
     final value = user?.getStringValue('email');
     return value == null || value.isEmpty ? null : value;
@@ -80,6 +87,17 @@ class AuthController extends ChangeNotifier {
     notifyListeners();
   }
 
+  /// Refresh the auth record (e.g. after `is_admin` was toggled in Admin UI).
+  Future<void> refreshSession() async {
+    if (!isLoggedIn) return;
+    try {
+      await client.collection(kPocketBaseUsersCollection).authRefresh();
+    } catch (error, stackTrace) {
+      debugPrint('AuthController.refreshSession failed: $error\n$stackTrace');
+    }
+    notifyListeners();
+  }
+
   Future<void> logout() async {
     client.authStore.clear();
     notifyListeners();