Layout changes, fix bugs in new entry page

lib/services/data_service/data_service_traction.dart

@@ -114,5 +114,40 @@ extension DataServiceTraction on DataService {
     }
     return _locoClasses;
   }
-}
 
+  Future<void> fetchLatestLocoChanges({int limit = 25, int offset = 0}) async {
+    _isLatestLocoChangesLoading = true;
+    _notifyAsync();
+    try {
+      final json =
+          await api.get('/loco/changes/latest?limit=$limit&offset=$offset');
+      dynamic results = json;
+      if (json is Map && json['data'] is List) {
+        results = json['data'];
+      }
+      if (results is List) {
+        final parsed = <LocoChange>[];
+        for (final item in results) {
+          if (item is Map<String, dynamic>) {
+            parsed.add(LocoChange.fromJson(item));
+          } else if (item is Map) {
+            parsed.add(
+              LocoChange.fromJson(
+                item.map((key, value) => MapEntry(key.toString(), value)),
+              ),
+            );
+          }
+        }
+        _latestLocoChanges = parsed;
+      } else {
+        throw Exception('Unexpected latest loco changes response: $json');
+      }
+    } catch (e) {
+      debugPrint('Failed to fetch latest loco changes: $e');
+      _latestLocoChanges = [];
+    } finally {
+      _isLatestLocoChangesLoading = false;
+      _notifyAsync();
+    }
+  }
+}