add new server

add new private key
check server connection

app/Models/PrivateKey.php

@@ -4,6 +4,12 @@ namespace App\Models;
 
 class PrivateKey extends BaseModel
 {
+    protected $fillable = [
+        'name',
+        'description',
+        'private_key',
+        'team_id',
+    ];
     public function servers()
     {
         return $this->hasMany(Server::class);