Add LegacyUserAuthenticated event for app password login

src/Events/LegacyUserAuthenticated.php

···
+<?php
+
+namespace SocialDept\AtpClient\Events;
+
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+use SocialDept\AtpClient\Data\AccessToken;
+
+class LegacyUserAuthenticated
+{
+    use Dispatchable, SerializesModels;
+
+    public function __construct(
+        public readonly AccessToken $token,
+    ) {}
+}

src/Session/SessionManager.php

···
 use SocialDept\AtpClient\Contracts\CredentialProvider;
 use SocialDept\AtpClient\Contracts\KeyStore;
 use SocialDept\AtpClient\Data\AccessToken;
+use SocialDept\AtpClient\Events\LegacyUserAuthenticated;
 use SocialDept\AtpClient\Events\TokenRefreshed;
 use SocialDept\AtpClient\Events\TokenRefreshing;
 use SocialDept\AtpClient\Exceptions\AuthenticationException;
···
 
         // Store credentials using DID as key
         $this->credentials->storeCredentials($did, $token);
+
+        event(new LegacyUserAuthenticated($token));
 
         return $this->createSession($did);
     }