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/Resources/metadata/fields/currency.json

@@ -79,7 +79,8 @@
             "customizationInlineEditDisabledDisabled": true,
             "customizationDefaultView": "views/admin/field-manager/fields/currency-default",
             "customizationTooltipTextDisabled": true,
-            "maxLength": 3
+            "maxLength": 3,
+            "apiSpecDisabled": true
         },
         "converted": {
             "type": "currencyConverted",