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/league/uri-interfaces/QueryComposeMode.php

@@ -0,0 +1,88 @@
+<?php
+
+/**
+ * League.Uri (https://uri.thephpleague.com)
+ *
+ * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace League\Uri;
+
+enum QueryComposeMode
+{
+    /**
+     * Pre-PHP 8.4 Mode.
+     *
+     * Strictly uses get_object_vars on objects (Enum included)
+     * If the value can not be serialized the entry is skipped.
+     *
+     * ie http_build_query behavior before PHP8.4
+     */
+    case Compatible;
+
+    /**
+     * PHP 8.4+ enum-compatible lenient mode.
+     *
+     * Provides stable support for BackedEnum values.
+     * UnitEnum values are skipped.
+     * Uses get_object_vars() for non-enum objects.
+     * Unserializable values are skipped.
+     *
+     * Behaves like {@see QueryComposeMode::EnumCompatible}
+     * but does not throw for UnitEnum values.
+     *
+     * Mirrors http_build_query behavior in PHP 8.4+,
+     * except that error cases are silently ignored
+     * instead of throwing.
+     *
+     * This mode is tolerant by design and skips entries that would otherwise
+     * result in an exception in {@see QueryComposeMode::EnumCompatible}.
+     */
+    case EnumLenient;
+
+    /**
+     * PHP 8.4+ mode.
+     *
+     * Provides stable support for BackedEnum values.
+     * Throws for UnitEnum.
+     * Uses get_object_vars() for non-enum objects.
+     * Unserializable values are skipped.
+     *
+     * http_build_query behavior in PHP 8.4+.
+     */
+    case EnumCompatible;
+
+    /**
+     * Use PHP version http_build_query algorithm.
+     *
+     * In pre-PHP8.4 you get the same results as `Compatible`
+     * In PHP PHP8.4+ you get the same results as `EnumCompatible`
+     */
+    case Native;
+
+    /**
+     * Validation-first mode.
+     *
+     * Guarantees that only scalar values, BackedEnum, and null are accepted.
+     * Any object, UnitEnum, resource, or recursive structure
+     * results in an exception.
+     *
+     * - null: the key name is used but the separator and its content are omitted
+     * - string: used as-is
+     * - bool: converted to string “0” (false) or “1” (true)
+     * - int: converted to numeric string (123 -> “123”)
+     * - float: converted to decimal string (3.14 -> “3.14”)
+     * - Backed Enum: converted to their backing value and then stringify see int and string
+     * - array: empty array: An empty array has zero items, therefore empty arrays are omitted from the query parameter list.
+     *     - lists: Becomes a repeated name suffixed with empty brackets (ie "a" with ["foo", false, 1.23] will result in a[]=foo&a[]=0&a[]=1.23)
+     *     - maps: Becomes a repeated name suffixed with brackets containing the key (ie "a" with ["b" => "foo", "c" => false, "d" => 1.23] will result in a[b]=foo&a[c]=0&a[d]=1.23)
+     *
+     * This contract is stable and independent of PHP's http_build_query implementation.
+     */
+    case Safe;
+}