chore: log full source hostname

exec/handlers/login.php

@@ -15,7 +15,7 @@ return static function (): void {
     $auditBase = [
         'request_id' => bin2hex(random_bytes(8)),
         'source_host' => $ctx->sourceHost(),
-        'server_name' => $ctx->serverName(),
+        'server_name' => $ctx->auditServerName(),
         'target_host' => $settings->targetBaseUrl(),
         'username' => $ctx->username(),
         'ttl' => $settings->loginKeyTtl(),

exec/lib/DirectAdminContext.php

@@ -57,6 +57,11 @@ final class DirectAdminContext
         return $this->serverName;
     }
 
+    public function auditServerName(): string
+    {
+        return $this->sourceHost;
+    }
+
     public function method(): string
     {
         return $this->method;

exec/lib/Settings.php

@@ -57,7 +57,6 @@ final class Settings
     {
         return [
             'DEFAULT_ENABLE' => 'true',
-            'MAIL_LOGIN_TARGET_NAME' => 'mx1',
             'MAIL_LOGIN_TARGET_BASE_URL' => 'https://mx1.mojserwer.pl:2222',
             'MAIL_LOGIN_REDIRECT_URL' => '/',
             'LOGIN_KEY_TTL' => '14400',