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/i18n/it_IT/Admin.json

@@ -140,7 +140,8 @@
     "jsonObject": "Oggetto Json",
     "datetime": "Data-ora",
     "datetimeOptional": "Data/data-ora",
-    "urlMultiple": "Url Multipli"
+    "urlMultiple": "Url Multipli",
+    "decimal": "Decimale"
   },
   "fields": {
     "type": "Tipo",