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/thecodingmachine/safe/generated/8.1/fileinfo.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Safe;
+
+use Safe\Exceptions\FileinfoException;
+
+/**
+ * @param \finfo $finfo
+ * @throws FileinfoException
+ *
+ */
+function finfo_close(\finfo $finfo): void
+{
+    error_clear_last();
+    $safeResult = \finfo_close($finfo);
+    if ($safeResult === false) {
+        throw FileinfoException::createFromPhpError();
+    }
+}
+
+
+/**
+ * @param int $flags
+ * @param null|string $magic_database
+ * @return \finfo
+ * @throws FileinfoException
+ *
+ */
+function finfo_open(int $flags = FILEINFO_NONE, ?string $magic_database = null): \finfo
+{
+    error_clear_last();
+    if ($magic_database !== null) {
+        $safeResult = \finfo_open($flags, $magic_database);
+    } else {
+        $safeResult = \finfo_open($flags);
+    }
+    if ($safeResult === false) {
+        throw FileinfoException::createFromPhpError();
+    }
+    return $safeResult;
+}
+
+
+/**
+ * @param resource|string $filename
+ * @return string
+ * @throws FileinfoException
+ *
+ */
+function mime_content_type($filename): string
+{
+    error_clear_last();
+    $safeResult = \mime_content_type($filename);
+    if ($safeResult === false) {
+        throw FileinfoException::createFromPhpError();
+    }
+    return $safeResult;
+}