fix ai suggestions

lib/screens/map_screen.dart

@@ -171,8 +171,14 @@ class _MapScreenState extends State<MapScreen> {
 
         // Compute guessed locations with caching
         final maxRangeKm = _estimateLoRaRangeKm(connector);
+        final filteredKeys = filteredByKeyPrefix
+            .map((c) => c.publicKeyHex)
+            .join(',');
+        final anchorKeys = allContactsWithLocation
+            .map((c) => c.publicKeyHex)
+            .join(',');
         final cacheKey =
-            '${filteredByKeyPrefix.length}:${allContactsWithLocation.length}:${pathHistory.version}:${connector.currentSf}:${connector.currentBwHz}:${connector.currentTxPower}:${settings.mapShowGuessedLocations}';
+            '$filteredKeys|$anchorKeys|${pathHistory.version}:${connector.currentSf}:${connector.currentBwHz}:${connector.currentTxPower}:${settings.mapShowGuessedLocations}';
         if (cacheKey != _guessedLocationsCacheKey) {
           _guessedLocationsCacheKey = cacheKey;
           _cachedGuessedLocations = settings.mapShowGuessedLocations

lib/services/path_history_service.dart

@@ -281,6 +281,7 @@ class PathHistoryService extends ChangeNotifier {
     _autoRotationIndex.remove(contactPubKeyHex);
     _floodStats.remove(contactPubKeyHex);
     await _storage.clearPathHistory(contactPubKeyHex);
+    _version++;
     notifyListeners();
   }
 
@@ -300,6 +301,7 @@ class PathHistoryService extends ChangeNotifier {
     );
 
     await _storage.savePathHistory(contactPubKeyHex, _cache[contactPubKeyHex]!);
+    _version++;
     notifyListeners();
   }