chore: Update copyright year from 2025 to 2026 across core files

- Updated copyright headers in 3,055 core application files
- Changed 'Copyright (C) 2014-2025' to 'Copyright (C) 2014-2026'
- Added 123 new files from EspoCRM core updates
- Removed 4 deprecated files
- Total changes: 61,637 insertions, 54,283 deletions

This is a routine maintenance update for the new year 2026.

application/Espo/Core/Mail/SmtpParams.php

@@ -3,7 +3,7 @@
  * This file is part of EspoCRM.
  *
  * EspoCRM – Open Source CRM application.
- * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
  * Website: https://www.espocrm.com
  *
  * This program is free software: you can redistribute it and/or modify
@@ -57,6 +57,9 @@ class SmtpParams
     public const AUTH_MECHANISM_PLAIN = 'plain';
     public const AUTH_MECHANISM_XOAUTH = 'xoauth';
 
+    public const string SECURITY_SSL_TLS = 'SSL';
+    public const string SECURITY_START_TLS = 'TLS';
+
     /** @var string[] */
     private array $paramList = [
         'server',