16.0.2

Bugfixes merged from upstream bgermann/cforms2 (v15.1.x)

• bugfix: Fixed empty charset on multipart emails — PHPMailer's CharSet is now set in phpmailer_init() when empty, replacing the upstream wp_mail_charset filter approach
• bugfix: Fieldtype registration moved to init hook for PHP 8.4 compatibility (avoids early class instantiation warnings)
• enhanced: Use wp_timezone_string() instead of get_option('timezone_string') for more robust timezone handling (correctly handles sites without a named timezone)
• enhanced: Integer cast for fieldset text padding calculation to prevent float values being passed to str_repeat()