feat: add labels to NodeInfo

src/NetworkManager.cpp

@@ -54,5 +54,7 @@ void NetworkManager::setupWiFi() {
     }
     self.lastSeen = millis();
     self.status = NodeInfo::ACTIVE;
+    // Initialize a default label for demonstration; users can modify at runtime
+    self.labels["hostname"] = ctx.hostname;
     ctx.fire("node_discovered", &self);
 }