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/nette/utils/src/Utils/ArrayHash.php

@@ -0,0 +1,102 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use function count, is_array, is_scalar, sprintf;
+
+
+/**
+ * Array-like object with property access.
+ * @template T
+ * @implements \IteratorAggregate<array-key, T>
+ * @implements \ArrayAccess<array-key, T>
+ */
+class ArrayHash extends \stdClass implements \ArrayAccess, \Countable, \IteratorAggregate
+{
+	/**
+	 * Transforms array to ArrayHash.
+	 * @param  array<T>  $array
+	 */
+	public static function from(array $array, bool $recursive = true): static
+	{
+		$obj = new static;
+		foreach ($array as $key => $value) {
+			$obj->$key = $recursive && is_array($value)
+				? static::from($value)
+				: $value;
+		}
+
+		return $obj;
+	}
+
+
+	/**
+	 * @return \Iterator<array-key, T>
+	 */
+	public function &getIterator(): \Iterator
+	{
+		foreach ((array) $this as $key => $foo) {
+			yield $key => $this->$key;
+		}
+	}
+
+
+	public function count(): int
+	{
+		return count((array) $this);
+	}
+
+
+	/**
+	 * Replaces or appends an item.
+	 * @param  array-key  $key
+	 * @param  T  $value
+	 */
+	public function offsetSet($key, $value): void
+	{
+		if (!is_scalar($key)) { // prevents null
+			throw new Nette\InvalidArgumentException(sprintf('Key must be either a string or an integer, %s given.', get_debug_type($key)));
+		}
+
+		$this->$key = $value;
+	}
+
+
+	/**
+	 * Returns an item.
+	 * @param  array-key  $key
+	 * @return T
+	 */
+	public function offsetGet($key): mixed
+	{
+		return $this->$key;
+	}
+
+
+	/**
+	 * Determines whether an item exists.
+	 * @param  array-key  $key
+	 */
+	public function offsetExists($key): bool
+	{
+		return isset($this->$key);
+	}
+
+
+	/**
+	 * Removes the element from this list.
+	 * @param  array-key  $key
+	 */
+	public function offsetUnset($key): void
+	{
+		unset($this->$key);
+	}
+}