multi-byte paths

test/helpers/path_helper_test.dart

@@ -22,15 +22,52 @@ Contact _contact({
 }
 
 void main() {
-  test('resolvePathNames ignores chat nodes and keeps repeater/room nodes', () {
+  test('resolvePathNames ignores chat nodes and keeps repeater/room nodes with 1-byte paths', () {
     final contacts = [
       _contact(firstByte: 0xF2, name: 'MunTui', type: advTypeChat),
       _contact(firstByte: 0x7E, name: 'zrepeater', type: advTypeRepeater),
       _contact(firstByte: 0xBA, name: 'USS Ronald Reagan', type: advTypeRoom),
     ];
 
-    final resolved = PathHelper.resolvePathNames([0xF2, 0x7E, 0xBA], contacts);
+    final resolved = PathHelper.resolvePathNames(
+      [0xF2, 0x7E, 0xBA],
+      contacts,
+      1, // 1-byte hash width
+    );
 
     expect(resolved, equals('F2 → zrepeater → USS Ronald Reagan'));
   });
+
+  test('resolvePathNames supports multi-byte paths', () {
+    final contacts = [
+      _contact(firstByte: 0xA1, name: 'Repeater1', type: advTypeRepeater),
+      _contact(firstByte: 0xC1, name: 'Room42', type: advTypeRoom),
+    ];
+    
+    // Contacts with 2-byte public keys
+    contacts[0] = Contact(
+      publicKey: Uint8List.fromList([0xA1, 0xA2, ...List.filled(30, 0)]),
+      name: 'Repeater1',
+      type: advTypeRepeater,
+      pathLength: 0,
+      path: Uint8List(0),
+      lastSeen: DateTime.now(),
+    );
+    contacts[1] = Contact(
+      publicKey: Uint8List.fromList([0xC1, 0xC2, ...List.filled(30, 0)]),
+      name: 'Room42',
+      type: advTypeRoom,
+      pathLength: 0,
+      path: Uint8List(0),
+      lastSeen: DateTime.now(),
+    );
+
+    final resolved = PathHelper.resolvePathNames(
+      [0xA1, 0xA2, 0xC1, 0xC2],
+      contacts,
+      2, // 2-byte hash width
+    );
+
+    expect(resolved, equals('Repeater1 → Room42'));
+  });
 }