first pass at operator profiles

lib/services/operator_profile_service.dart

@@ -0,0 +1,22 @@
+import 'dart:convert';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../models/operator_profile.dart';
+
+class OperatorProfileService {
+  static const _key = 'operator_profiles';
+
+  Future<List<OperatorProfile>> load() async {
+    final prefs = await SharedPreferences.getInstance();
+    final jsonStr = prefs.getString(_key);
+    if (jsonStr == null) return [];
+    final list = jsonDecode(jsonStr) as List<dynamic>;
+    return list.map((e) => OperatorProfile.fromJson(e)).toList();
+  }
+
+  Future<void> save(List<OperatorProfile> profiles) async {
+    final prefs = await SharedPreferences.getInstance();
+    final encodable = profiles.map((p) => p.toJson()).toList();
+    await prefs.setString(_key, jsonEncode(encodable));
+  }
+}

lib/services/uploader.dart

@@ -36,10 +36,7 @@ class Uploader {
       print('Uploader: Created changeset ID: $csId');
 
       // 2. create or update node
-      final mergedTags = Map<String, String>.from(p.profile.tags);
-      if (p.profile.requiresDirection) {
-        mergedTags['direction'] = p.direction.round().toString();
-      }
+      final mergedTags = p.getCombinedTags();
       final tagsXml = mergedTags.entries.map((e) =>
         '<tag k="${e.key}" v="${e.value}"/>').join('\n            ');