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/Entities/EmailAccount.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
@@ -117,6 +117,20 @@ class EmailAccount extends Entity
         return $this->getValueObject('emailFolder');
     }
 
+    public function getMappedEmailFolder(string $folder): ?Link
+    {
+        /** @var stdClass $map */
+        $map = $this->get('folderMap') ?? (object) [];
+
+        $folderId = $map->$folder ?? null;
+
+        if (!$folderId) {
+            return null;
+        }
+
+        return Link::create($folderId);
+    }
+
     /**
      * @return string[]
      */