fix UTF8 formating and right timestamp in DB when updated

WEBROOT/Commands/TerminErinnerung.php

@@ -51,23 +51,24 @@ foreach ($termine as $termin) {
         $message .= "Uhrzeit: {$termin["ZEIT"]}\n";
 
         if (!empty($termin["NOTIZ"])) {
-            $message .= "Notiz: {$termin["NOTIZ"]}\n";
+            $notizClean = mb_convert_encoding($termin["NOTIZ"], "UTF-8", "auto");
+            $message .= "Notiz: {$notizClean}\n";
         }
 
         sendMail(
             $subject,
             $message,
-            "/cron/reminder.php",
+            $_SERVER['SCRIPT_NAME'] ?? 'CLI/Unbekannt',
             true,
             $benutzer["EMAIL"],
         );
 
-        // Erinnerung als gesendet markieren
         DatabaseUpdate(
             "Termine",
-            "ERINNERUNG_AM = NOW()",
+            "ERINNERUNG_AM = ?",
             "ID = ?",
+            date('d-m-Y H:i:s'),
             $termin["ID"]
         );
     }
-}
+}