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/Utils/Util.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
@@ -890,14 +890,14 @@ class Util
     /**
      * Sanitize HTML code.
      *
-     * @param string|string[] $text A source.
+     * @param string|array<string|int, mixed> $text A source.
      * @param string[] $permittedHtmlTags Allows only HTML tags without parameters like <p></p>, <br>, etc.
-     * @return string|string[]
+     * @return string|array<string|int, mixed>
      */
     public static function sanitizeHtml($text, $permittedHtmlTags = ['p', 'br', 'b', 'strong', 'pre'])
     {
         if (is_array($text)) {
-            foreach ($text as $key => &$value) {
+            foreach ($text as &$value) {
                 $value = self::sanitizeHtml($value, $permittedHtmlTags);
             }