fix: server is functional check

app/Http/Livewire/Server/New/ByIp.php

@@ -58,7 +58,7 @@ class ByIp extends Component
     {
         $this->validate();
         try {
-            if (!$this->private_key_id) {
+            if (is_null($this->private_key_id)) {
                 return $this->emit('error', 'You must select a private key');
             }
             $server = Server::create([

app/Http/Livewire/Server/Proxy/Status.php

@@ -17,7 +17,7 @@ class Status extends Component
     public function getProxyStatus()
     {
         try {
-            if (data_get($this->server, 'settings.is_usable') && data_get($this->server, 'settings.is_reachable')) {
+            if ($this->server->isFunctional()) {
                 $container = getContainerStatus(server: $this->server, container_id: 'coolify-proxy');
                 $this->server->proxy->status = $container;
                 $this->server->save();