update: shadowsocks obfs pre support

app/Models/ServerShadowsocks.php

@@ -13,6 +13,7 @@ class ServerShadowsocks extends Model
         'created_at' => 'timestamp',
         'updated_at' => 'timestamp',
         'group_id' => 'array',
-        'tags' => 'array'
+        'tags' => 'array',
+        'obfs_settings' => 'array'
     ];
 }