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/app/scheduledJobs.json

@@ -41,6 +41,12 @@
         "scheduling": "25 5 * * *",
         "jobClassName": "Espo\\Classes\\Jobs\\CheckNewExtensionVersion"
     },
+    "SyncCurrencyRates": {
+        "name": "Sync Currency Rates",
+        "jobClassName": "Espo\\Classes\\Jobs\\SyncCurrencyRates",
+        "scheduling": "2 0 * * *",
+        "isSystem": true
+    },
     "Cleanup": {
         "jobClassName": "Espo\\Classes\\Jobs\\Cleanup"
     },