fix: CloudService silent error → logging, Status zeigt Token-Fehler an

lib/screens/cloud_screen.dart

@@ -89,8 +89,8 @@ class _CloudScreenState extends State<CloudScreen> {
     if (!mounted) return;
     setState(() {
       _serverCount = st?['total'] ?? 0;
-      _status = st != null ? 'Verbunden' : 'Keine Verbindung';
       _statusOk = st != null;
+      _status = st != null ? 'Verbunden' : 'Keine Verbindung (Token?)';
     });
   }
 

lib/services/cloud_service.dart

@@ -98,7 +98,10 @@ class CloudService {
           .get(Uri.parse('$_base$path'), headers: _authHeader)
           .timeout(const Duration(seconds: 10));
       if (r.statusCode == 200) return jsonDecode(r.body);
-    } catch (_) {}
+      MeloLogger().fehler('cloud_get', '${r.statusCode} $path');
+    } catch (e) {
+      MeloLogger().fehler('cloud_get_error', '$path: $e');
+    }
     return null;
   }