Stand: SMTP-Test, Admin-Mail-Tab, Notifiable-Fix, Lazy-Quill

- Fix: Notifiable-Trait zum User-Model hinzugefuegt (behebt notify()-500er)
- Installer: SMTP-Verbindungstest mit EsmtpTransport + Ueberspringen-Link
- Admin: Neuer E-Mail-Tab mit SMTP-Konfiguration + Verbindungstest
- Admin: Lazy Quill-Initialisierung (nur sichtbare Locale wird geladen)
- Uebersetzungen: 17 neue Mail-Keys in allen 6 Sprachen

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vendor/symfony/console/Tester/CommandTester.php

@@ -0,0 +1,77 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Tester;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\ArrayInput;
+
+/**
+ * Eases the testing of console commands.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+class CommandTester
+{
+    use TesterTrait;
+
+    private Command $command;
+
+    public function __construct(
+        callable|Command $command,
+    ) {
+        $this->command = $command instanceof Command ? $command : new Command(null, $command);
+    }
+
+    /**
+     * Executes the command.
+     *
+     * Available execution options:
+     *
+     *  * interactive:               Sets the input interactive flag
+     *  * decorated:                 Sets the output decorated flag
+     *  * verbosity:                 Sets the output verbosity flag
+     *  * capture_stderr_separately: Make output of stdOut and stdErr separately available
+     *
+     * @param array $input   An array of command arguments and options
+     * @param array $options An array of execution options
+     *
+     * @return int The command exit code
+     */
+    public function execute(array $input, array $options = []): int
+    {
+        // set the command name automatically if the application requires
+        // this argument and no command name was passed
+        if (!isset($input['command'])
+            && (null !== $application = $this->command->getApplication())
+            && $application->getDefinition()->hasArgument('command')
+        ) {
+            $input = array_merge(['command' => $this->command->getName()], $input);
+        }
+
+        $this->input = new ArrayInput($input);
+        // Use an in-memory input stream even if no inputs are set so that QuestionHelper::ask() does not rely on the blocking STDIN.
+        $this->input->setStream(self::createStream($this->inputs));
+
+        if (isset($options['interactive'])) {
+            $this->input->setInteractive($options['interactive']);
+        }
+
+        if (!isset($options['decorated'])) {
+            $options['decorated'] = false;
+        }
+
+        $this->initOutput($options);
+
+        return $this->statusCode = $this->command->run($this->input, $this->output);
+    }
+}