feat: lots of fixes

lib/owntracks_api.dart

@@ -118,7 +118,7 @@ class OwntracksApi {
   }
 
   // Method to create and return a WebSocket connection
-  Future<WebSocketClient> createWebSocketConnection({
+  Future<Result<WebSocketClient>> createWebSocketConnection({
     required String wsPath,
     required void Function(Object message) onMessage,
     required void Function(WebSocketClientState stateChange) onStateChange,
@@ -149,10 +149,15 @@ class OwntracksApi {
     client.stateChanges.listen(onStateChange);
 
     // Connect to the WebSocket server
-    await client.connect("${baseUrl.replaceFirst('http', 'ws')}/ws/$wsPath");
+    try {
+      await client.connect("${baseUrl.replaceFirst('http', 'ws')}/ws/$wsPath");
+    } catch (e) {
+      await client.disconnect();
+      return bail("WebSocket connection to path $wsPath was unsuccessful: $e");
+    }
 
     // Return the connected client
-    return client;
+    return Ok(client);
   }
 }
 
@@ -163,6 +168,11 @@ class Point {
 
   Point({required this.lat, required this.lon, required this.timestamp});
 
+  @override
+  String toString() {
+    return 'Point{lat: $lat, lon: $lon, timestamp: $timestamp}';
+  }
+
   factory Point.fromJson(Map<String, dynamic> json) {
     return Point(
       lat: json['lat'],