add LIKE filtering on number value by default

lib/services/data_service/data_service_traction.dart

@@ -32,7 +32,7 @@ extension DataServiceTraction on DataService {
         payload['class'] = locoClass;
       }
       if (locoNumber != null && locoNumber.isNotEmpty) {
-        payload['number'] = locoNumber;
+        payload['number'] = _withLikeWildcards(locoNumber);
       }
       if (filters != null) {
         filters.forEach((key, value) {
@@ -67,6 +67,14 @@ extension DataServiceTraction on DataService {
 
   }
 
+  String _withLikeWildcards(String rawValue) {
+    final value = rawValue.trim();
+    if (value.isEmpty) return value;
+    final hasLeadingWildcard = value.startsWith('%');
+    final hasTrailingWildcard = value.endsWith('%');
+    return '${hasLeadingWildcard ? '' : '%'}$value${hasTrailingWildcard ? '' : '%'}';
+  }
+
   Future<List<LocoAttrVersion>> fetchLocoTimeline(
     int locoId, {
     bool includeAllPending = false,