Remove Passport and replace with Sanctum, upgrade framework to Laravel 10

app/Models/Netmail.php

@@ -33,11 +33,11 @@ final class Netmail extends Model implements Packet
 		'tagline',
 	];
 
-	protected $dates = ['datetime','sent_at'];
-
 	protected $casts = [
+		'datetime' => 'datetime:Y-m-d H:i:s',
 		'msg' => CompressedString::class,
 		'msg_src' => CompressedString::class,
+		'sent_at' => 'datetime:Y-m-d H:i:s',
 	];
 
 	public function __set($key,$value)